/*! jQuery UI - v1.11.4+CommonJS - 2015-08-28
* http://jqueryui.com
* Includes: widget.js
* Copyright 2015 jQuery Foundation and other contributors; Licensed MIT */

(function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define([ "jquery" ], factory );

	} else if ( typeof exports === "object" ) {

		// Node/CommonJS
		factory( require( "jquery" ) );

	} else {

		// Browser globals
		factory( jQuery );
	}
}(function( $ ) {
/*!
 * jQuery UI Widget 1.11.4
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/jQuery.widget/
 */


var widget_uuid = 0,
	widget_slice = Array.prototype.slice;

$.cleanData = (function( orig ) {
	return function( elems ) {
		var events, elem, i;
		for ( i = 0; (elem = elems[i]) != null; i++ ) {
			try {

				// Only trigger remove when necessary to save time
				events = $._data( elem, "events" );
				if ( events && events.remove ) {
					$( elem ).triggerHandler( "remove" );
				}

			// http://bugs.jquery.com/ticket/8235
			} catch ( e ) {}
		}
		orig( elems );
	};
})( $.cleanData );

$.widget = function( name, base, prototype ) {
	var fullName, existingConstructor, constructor, basePrototype,
		// proxiedPrototype allows the provided prototype to remain unmodified
		// so that it can be used as a mixin for multiple widgets (#8876)
		proxiedPrototype = {},
		namespace = name.split( "." )[ 0 ];

	name = name.split( "." )[ 1 ];
	fullName = namespace + "-" + name;

	if ( !prototype ) {
		prototype = base;
		base = $.Widget;
	}

	// create selector for plugin
	$.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
		return !!$.data( elem, fullName );
	};

	$[ namespace ] = $[ namespace ] || {};
	existingConstructor = $[ namespace ][ name ];
	constructor = $[ namespace ][ name ] = function( options, element ) {
		// allow instantiation without "new" keyword
		if ( !this._createWidget ) {
			return new constructor( options, element );
		}

		// allow instantiation without initializing for simple inheritance
		// must use "new" keyword (the code above always passes args)
		if ( arguments.length ) {
			this._createWidget( options, element );
		}
	};
	// extend with the existing constructor to carry over any static properties
	$.extend( constructor, existingConstructor, {
		version: prototype.version,
		// copy the object used to create the prototype in case we need to
		// redefine the widget later
		_proto: $.extend( {}, prototype ),
		// track widgets that inherit from this widget in case this widget is
		// redefined after a widget inherits from it
		_childConstructors: []
	});

	basePrototype = new base();
	// we need to make the options hash a property directly on the new instance
	// otherwise we'll modify the options hash on the prototype that we're
	// inheriting from
	basePrototype.options = $.widget.extend( {}, basePrototype.options );
	$.each( prototype, function( prop, value ) {
		if ( !$.isFunction( value ) ) {
			proxiedPrototype[ prop ] = value;
			return;
		}
		proxiedPrototype[ prop ] = (function() {
			var _super = function() {
					return base.prototype[ prop ].apply( this, arguments );
				},
				_superApply = function( args ) {
					return base.prototype[ prop ].apply( this, args );
				};
			return function() {
				var __super = this._super,
					__superApply = this._superApply,
					returnValue;

				this._super = _super;
				this._superApply = _superApply;

				returnValue = value.apply( this, arguments );

				this._super = __super;
				this._superApply = __superApply;

				return returnValue;
			};
		})();
	});
	constructor.prototype = $.widget.extend( basePrototype, {
		// TODO: remove support for widgetEventPrefix
		// always use the name + a colon as the prefix, e.g., draggable:start
		// don't prefix for widgets that aren't DOM-based
		widgetEventPrefix: existingConstructor ? (basePrototype.widgetEventPrefix || name) : name
	}, proxiedPrototype, {
		constructor: constructor,
		namespace: namespace,
		widgetName: name,
		widgetFullName: fullName
	});

	// If this widget is being redefined then we need to find all widgets that
	// are inheriting from it and redefine all of them so that they inherit from
	// the new version of this widget. We're essentially trying to replace one
	// level in the prototype chain.
	if ( existingConstructor ) {
		$.each( existingConstructor._childConstructors, function( i, child ) {
			var childPrototype = child.prototype;

			// redefine the child widget using the same prototype that was
			// originally used, but inherit from the new version of the base
			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
		});
		// remove the list of existing child constructors from the old constructor
		// so the old child constructors can be garbage collected
		delete existingConstructor._childConstructors;
	} else {
		base._childConstructors.push( constructor );
	}

	$.widget.bridge( name, constructor );

	return constructor;
};

$.widget.extend = function( target ) {
	var input = widget_slice.call( arguments, 1 ),
		inputIndex = 0,
		inputLength = input.length,
		key,
		value;
	for ( ; inputIndex < inputLength; inputIndex++ ) {
		for ( key in input[ inputIndex ] ) {
			value = input[ inputIndex ][ key ];
			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
				// Clone objects
				if ( $.isPlainObject( value ) ) {
					target[ key ] = $.isPlainObject( target[ key ] ) ?
						$.widget.extend( {}, target[ key ], value ) :
						// Don't extend strings, arrays, etc. with objects
						$.widget.extend( {}, value );
				// Copy everything else by reference
				} else {
					target[ key ] = value;
				}
			}
		}
	}
	return target;
};

$.widget.bridge = function( name, object ) {
	var fullName = object.prototype.widgetFullName || name;
	$.fn[ name ] = function( options ) {
		var isMethodCall = typeof options === "string",
			args = widget_slice.call( arguments, 1 ),
			returnValue = this;

		if ( isMethodCall ) {
			this.each(function() {
				var methodValue,
					instance = $.data( this, fullName );
				if ( options === "instance" ) {
					returnValue = instance;
					return false;
				}
				if ( !instance ) {
					return $.error( "cannot call methods on " + name + " prior to initialization; " +
						"attempted to call method '" + options + "'" );
				}
				if ( !$.isFunction( instance[options] ) || options.charAt( 0 ) === "_" ) {
					return $.error( "no such method '" + options + "' for " + name + " widget instance" );
				}
				methodValue = instance[ options ].apply( instance, args );
				if ( methodValue !== instance && methodValue !== undefined ) {
					returnValue = methodValue && methodValue.jquery ?
						returnValue.pushStack( methodValue.get() ) :
						methodValue;
					return false;
				}
			});
		} else {

			// Allow multiple hashes to be passed on init
			if ( args.length ) {
				options = $.widget.extend.apply( null, [ options ].concat(args) );
			}

			this.each(function() {
				var instance = $.data( this, fullName );
				if ( instance ) {
					instance.option( options || {} );
					if ( instance._init ) {
						instance._init();
					}
				} else {
					$.data( this, fullName, new object( options, this ) );
				}
			});
		}

		return returnValue;
	};
};

$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];

$.Widget.prototype = {
	widgetName: "widget",
	widgetEventPrefix: "",
	defaultElement: "<div>",
	options: {
		disabled: false,

		// callbacks
		create: null
	},
	_createWidget: function( options, element ) {
		element = $( element || this.defaultElement || this )[ 0 ];
		this.element = $( element );
		this.uuid = widget_uuid++;
		this.eventNamespace = "." + this.widgetName + this.uuid;

		this.bindings = $();
		this.hoverable = $();
		this.focusable = $();

		if ( element !== this ) {
			$.data( element, this.widgetFullName, this );
			this._on( true, this.element, {
				remove: function( event ) {
					if ( event.target === element ) {
						this.destroy();
					}
				}
			});
			this.document = $( element.style ?
				// element within the document
				element.ownerDocument :
				// element is window or document
				element.document || element );
			this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
		}

		this.options = $.widget.extend( {},
			this.options,
			this._getCreateOptions(),
			options );

		this._create();
		this._trigger( "create", null, this._getCreateEventData() );
		this._init();
	},
	_getCreateOptions: $.noop,
	_getCreateEventData: $.noop,
	_create: $.noop,
	_init: $.noop,

	destroy: function() {
		this._destroy();
		// we can probably remove the unbind calls in 2.0
		// all event bindings should go through this._on()
		this.element
			.unbind( this.eventNamespace )
			.removeData( this.widgetFullName )
			// support: jquery <1.6.3
			// http://bugs.jquery.com/ticket/9413
			.removeData( $.camelCase( this.widgetFullName ) );
		this.widget()
			.unbind( this.eventNamespace )
			.removeAttr( "aria-disabled" )
			.removeClass(
				this.widgetFullName + "-disabled " +
				"ui-state-disabled" );

		// clean up events and states
		this.bindings.unbind( this.eventNamespace );
		this.hoverable.removeClass( "ui-state-hover" );
		this.focusable.removeClass( "ui-state-focus" );
	},
	_destroy: $.noop,

	widget: function() {
		return this.element;
	},

	option: function( key, value ) {
		var options = key,
			parts,
			curOption,
			i;

		if ( arguments.length === 0 ) {
			// don't return a reference to the internal hash
			return $.widget.extend( {}, this.options );
		}

		if ( typeof key === "string" ) {
			// handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
			options = {};
			parts = key.split( "." );
			key = parts.shift();
			if ( parts.length ) {
				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
				for ( i = 0; i < parts.length - 1; i++ ) {
					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
					curOption = curOption[ parts[ i ] ];
				}
				key = parts.pop();
				if ( arguments.length === 1 ) {
					return curOption[ key ] === undefined ? null : curOption[ key ];
				}
				curOption[ key ] = value;
			} else {
				if ( arguments.length === 1 ) {
					return this.options[ key ] === undefined ? null : this.options[ key ];
				}
				options[ key ] = value;
			}
		}

		this._setOptions( options );

		return this;
	},
	_setOptions: function( options ) {
		var key;

		for ( key in options ) {
			this._setOption( key, options[ key ] );
		}

		return this;
	},
	_setOption: function( key, value ) {
		this.options[ key ] = value;

		if ( key === "disabled" ) {
			this.widget()
				.toggleClass( this.widgetFullName + "-disabled", !!value );

			// If the widget is becoming disabled, then nothing is interactive
			if ( value ) {
				this.hoverable.removeClass( "ui-state-hover" );
				this.focusable.removeClass( "ui-state-focus" );
			}
		}

		return this;
	},

	enable: function() {
		return this._setOptions({ disabled: false });
	},
	disable: function() {
		return this._setOptions({ disabled: true });
	},

	_on: function( suppressDisabledCheck, element, handlers ) {
		var delegateElement,
			instance = this;

		// no suppressDisabledCheck flag, shuffle arguments
		if ( typeof suppressDisabledCheck !== "boolean" ) {
			handlers = element;
			element = suppressDisabledCheck;
			suppressDisabledCheck = false;
		}

		// no element argument, shuffle and use this.element
		if ( !handlers ) {
			handlers = element;
			element = this.element;
			delegateElement = this.widget();
		} else {
			element = delegateElement = $( element );
			this.bindings = this.bindings.add( element );
		}

		$.each( handlers, function( event, handler ) {
			function handlerProxy() {
				// allow widgets to customize the disabled handling
				// - disabled as an array instead of boolean
				// - disabled class as method for disabling individual parts
				if ( !suppressDisabledCheck &&
						( instance.options.disabled === true ||
							$( this ).hasClass( "ui-state-disabled" ) ) ) {
					return;
				}
				return ( typeof handler === "string" ? instance[ handler ] : handler )
					.apply( instance, arguments );
			}

			// copy the guid so direct unbinding works
			if ( typeof handler !== "string" ) {
				handlerProxy.guid = handler.guid =
					handler.guid || handlerProxy.guid || $.guid++;
			}

			var match = event.match( /^([\w:-]*)\s*(.*)$/ ),
				eventName = match[1] + instance.eventNamespace,
				selector = match[2];
			if ( selector ) {
				delegateElement.delegate( selector, eventName, handlerProxy );
			} else {
				element.bind( eventName, handlerProxy );
			}
		});
	},

	_off: function( element, eventName ) {
		eventName = (eventName || "").split( " " ).join( this.eventNamespace + " " ) +
			this.eventNamespace;
		element.unbind( eventName ).undelegate( eventName );

		// Clear the stack to avoid memory leaks (#10056)
		this.bindings = $( this.bindings.not( element ).get() );
		this.focusable = $( this.focusable.not( element ).get() );
		this.hoverable = $( this.hoverable.not( element ).get() );
	},

	_delay: function( handler, delay ) {
		function handlerProxy() {
			return ( typeof handler === "string" ? instance[ handler ] : handler )
				.apply( instance, arguments );
		}
		var instance = this;
		return setTimeout( handlerProxy, delay || 0 );
	},

	_hoverable: function( element ) {
		this.hoverable = this.hoverable.add( element );
		this._on( element, {
			mouseenter: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-hover" );
			},
			mouseleave: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-hover" );
			}
		});
	},

	_focusable: function( element ) {
		this.focusable = this.focusable.add( element );
		this._on( element, {
			focusin: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-focus" );
			},
			focusout: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-focus" );
			}
		});
	},

	_trigger: function( type, event, data ) {
		var prop, orig,
			callback = this.options[ type ];

		data = data || {};
		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();
		// the original event may come from any element
		// so we need to reset the target on the new event
		event.target = this.element[ 0 ];

		// copy original event properties over to the new event
		orig = event.originalEvent;
		if ( orig ) {
			for ( prop in orig ) {
				if ( !( prop in event ) ) {
					event[ prop ] = orig[ prop ];
				}
			}
		}

		this.element.trigger( event, data );
		return !( $.isFunction( callback ) &&
			callback.apply( this.element[0], [ event ].concat( data ) ) === false ||
			event.isDefaultPrevented() );
	}
};

$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
		if ( typeof options === "string" ) {
			options = { effect: options };
		}
		var hasOptions,
			effectName = !options ?
				method :
				options === true || typeof options === "number" ?
					defaultEffect :
					options.effect || defaultEffect;
		options = options || {};
		if ( typeof options === "number" ) {
			options = { duration: options };
		}
		hasOptions = !$.isEmptyObject( options );
		options.complete = callback;
		if ( options.delay ) {
			element.delay( options.delay );
		}
		if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
			element[ method ]( options );
		} else if ( effectName !== method && element[ effectName ] ) {
			element[ effectName ]( options.duration, options.easing, callback );
		} else {
			element.queue(function( next ) {
				$( this )[ method ]();
				if ( callback ) {
					callback.call( element[ 0 ] );
				}
				next();
			});
		}
	};
});

var widget = $.widget;



}));
/*
 * jQuery Iframe Transport Plugin
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2011, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

/* global define, require, window, document, JSON */

;(function (factory) {
    'use strict';
    if (typeof define === 'function' && define.amd) {
        // Register as an anonymous AMD module:
        define(['jquery'], factory);
    } else if (typeof exports === 'object') {
        // Node/CommonJS:
        factory(require('jquery'));
    } else {
        // Browser globals:
        factory(window.jQuery);
    }
}(function ($) {
    'use strict';

    // Helper variable to create unique names for the transport iframes:
    var counter = 0,
        jsonAPI = $,
        jsonParse = 'parseJSON';

    if ('JSON' in window && 'parse' in JSON) {
      jsonAPI = JSON;
      jsonParse = 'parse';
    }

    // The iframe transport accepts four additional options:
    // options.fileInput: a jQuery collection of file input fields
    // options.paramName: the parameter name for the file form data,
    //  overrides the name property of the file input field(s),
    //  can be a string or an array of strings.
    // options.formData: an array of objects with name and value properties,
    //  equivalent to the return data of .serializeArray(), e.g.:
    //  [{name: 'a', value: 1}, {name: 'b', value: 2}]
    // options.initialIframeSrc: the URL of the initial iframe src,
    //  by default set to "javascript:false;"
    $.ajaxTransport('iframe', function (options) {
        if (options.async) {
            // javascript:false as initial iframe src
            // prevents warning popups on HTTPS in IE6:
            /*jshint scripturl: true */
            var initialIframeSrc = options.initialIframeSrc || 'javascript:false;',
            /*jshint scripturl: false */
                form,
                iframe,
                addParamChar;
            return {
                send: function (_, completeCallback) {
                    form = $('<form style="display:none;"></form>');
                    form.attr('accept-charset', options.formAcceptCharset);
                    addParamChar = /\?/.test(options.url) ? '&' : '?';
                    // XDomainRequest only supports GET and POST:
                    if (options.type === 'DELETE') {
                        options.url = options.url + addParamChar + '_method=DELETE';
                        options.type = 'POST';
                    } else if (options.type === 'PUT') {
                        options.url = options.url + addParamChar + '_method=PUT';
                        options.type = 'POST';
                    } else if (options.type === 'PATCH') {
                        options.url = options.url + addParamChar + '_method=PATCH';
                        options.type = 'POST';
                    }
                    // IE versions below IE8 cannot set the name property of
                    // elements that have already been added to the DOM,
                    // so we set the name along with the iframe HTML markup:
                    counter += 1;
                    iframe = $(
                        '<iframe src="' + initialIframeSrc +
                            '" name="iframe-transport-' + counter + '"></iframe>'
                    ).bind('load', function () {
                        var fileInputClones,
                            paramNames = $.isArray(options.paramName) ?
                                    options.paramName : [options.paramName];
                        iframe
                            .unbind('load')
                            .bind('load', function () {
                                var response;
                                // Wrap in a try/catch block to catch exceptions thrown
                                // when trying to access cross-domain iframe contents:
                                try {
                                    response = iframe.contents();
                                    // Google Chrome and Firefox do not throw an
                                    // exception when calling iframe.contents() on
                                    // cross-domain requests, so we unify the response:
                                    if (!response.length || !response[0].firstChild) {
                                        throw new Error();
                                    }
                                } catch (e) {
                                    response = undefined;
                                }
                                // The complete callback returns the
                                // iframe content document as response object:
                                completeCallback(
                                    200,
                                    'success',
                                    {'iframe': response}
                                );
                                // Fix for IE endless progress bar activity bug
                                // (happens on form submits to iframe targets):
                                $('<iframe src="' + initialIframeSrc + '"></iframe>')
                                    .appendTo(form);
                                window.setTimeout(function () {
                                    // Removing the form in a setTimeout call
                                    // allows Chrome's developer tools to display
                                    // the response result
                                    form.remove();
                                }, 0);
                            });
                        form
                            .prop('target', iframe.prop('name'))
                            .prop('action', options.url)
                            .prop('method', options.type);
                        if (options.formData) {
                            $.each(options.formData, function (index, field) {
                                $('<input type="hidden"/>')
                                    .prop('name', field.name)
                                    .val(field.value)
                                    .appendTo(form);
                            });
                        }
                        if (options.fileInput && options.fileInput.length &&
                                options.type === 'POST') {
                            fileInputClones = options.fileInput.clone();
                            // Insert a clone for each file input field:
                            options.fileInput.after(function (index) {
                                return fileInputClones[index];
                            });
                            if (options.paramName) {
                                options.fileInput.each(function (index) {
                                    $(this).prop(
                                        'name',
                                        paramNames[index] || options.paramName
                                    );
                                });
                            }
                            // Appending the file input fields to the hidden form
                            // removes them from their original location:
                            form
                                .append(options.fileInput)
                                .prop('enctype', 'multipart/form-data')
                                // enctype must be set as encoding for IE:
                                .prop('encoding', 'multipart/form-data');
                            // Remove the HTML5 form attribute from the input(s):
                            options.fileInput.removeAttr('form');
                        }
                        form.submit();
                        // Insert the file input fields at their original location
                        // by replacing the clones with the originals:
                        if (fileInputClones && fileInputClones.length) {
                            options.fileInput.each(function (index, input) {
                                var clone = $(fileInputClones[index]);
                                // Restore the original name and form properties:
                                $(input)
                                    .prop('name', clone.prop('name'))
                                    .attr('form', clone.attr('form'));
                                clone.replaceWith(input);
                            });
                        }
                    });
                    form.append(iframe).appendTo(document.body);
                },
                abort: function () {
                    if (iframe) {
                        // javascript:false as iframe src aborts the request
                        // and prevents warning popups on HTTPS in IE6.
                        // concat is used to avoid the "Script URL" JSLint error:
                        iframe
                            .unbind('load')
                            .prop('src', initialIframeSrc);
                    }
                    if (form) {
                        form.remove();
                    }
                }
            };
        }
    });

    // The iframe transport returns the iframe content document as response.
    // The following adds converters from iframe to text, json, html, xml
    // and script.
    // Please note that the Content-Type for JSON responses has to be text/plain
    // or text/html, if the browser doesn't include application/json in the
    // Accept header, else IE will show a download dialog.
    // The Content-Type for XML responses on the other hand has to be always
    // application/xml or text/xml, so IE properly parses the XML response.
    // See also
    // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation
    $.ajaxSetup({
        converters: {
            'iframe text': function (iframe) {
                return iframe && $(iframe[0].body).text();
            },
            'iframe json': function (iframe) {
                return iframe && jsonAPI[jsonParse]($(iframe[0].body).text());
            },
            'iframe html': function (iframe) {
                return iframe && $(iframe[0].body).html();
            },
            'iframe xml': function (iframe) {
                var xmlDoc = iframe && iframe[0];
                return xmlDoc && $.isXMLDoc(xmlDoc) ? xmlDoc :
                        $.parseXML((xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) ||
                            $(xmlDoc.body).html());
            },
            'iframe script': function (iframe) {
                return iframe && $.globalEval($(iframe[0].body).text());
            }
        }
    });

}));
/*
 * jQuery File Upload Plugin
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2010, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

/* jshint nomen:false */
/* global define, require, window, document, location, Blob, FormData */

;(function (factory) {
    'use strict';
    if (typeof define === 'function' && define.amd) {
        // Register as an anonymous AMD module:
        define([
            'jquery',
            'jquery-ui/ui/widget'
        ], factory);
    } else if (typeof exports === 'object') {
        // Node/CommonJS:
        factory(
            require('jquery'),
            require('./vendor/jquery.ui.widget')
        );
    } else {
        // Browser globals:
        factory(window.jQuery);
    }
}(function ($) {
    'use strict';

    // Detect file input support, based on
    // http://viljamis.com/blog/2012/file-upload-support-on-mobile/
    $.support.fileInput = !(new RegExp(
        // Handle devices which give false positives for the feature detection:
        '(Android (1\\.[0156]|2\\.[01]))' +
            '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' +
            '|(w(eb)?OSBrowser)|(webOS)' +
            '|(Kindle/(1\\.0|2\\.[05]|3\\.0))'
    ).test(window.navigator.userAgent) ||
        // Feature detection for all other devices:
        $('<input type="file">').prop('disabled'));

    // The FileReader API is not actually used, but works as feature detection,
    // as some Safari versions (5?) support XHR file uploads via the FormData API,
    // but not non-multipart XHR file uploads.
    // window.XMLHttpRequestUpload is not available on IE10, so we check for
    // window.ProgressEvent instead to detect XHR2 file upload capability:
    $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader);
    $.support.xhrFormDataFileUpload = !!window.FormData;

    // Detect support for Blob slicing (required for chunked uploads):
    $.support.blobSlice = window.Blob && (Blob.prototype.slice ||
        Blob.prototype.webkitSlice || Blob.prototype.mozSlice);

    // Helper function to create drag handlers for dragover/dragenter/dragleave:
    function getDragHandler(type) {
        var isDragOver = type === 'dragover';
        return function (e) {
            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
            var dataTransfer = e.dataTransfer;
            if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1 &&
                    this._trigger(
                        type,
                        $.Event(type, {delegatedEvent: e})
                    ) !== false) {
                e.preventDefault();
                if (isDragOver) {
                    dataTransfer.dropEffect = 'copy';
                }
            }
        };
    }

    // The fileupload widget listens for change events on file input fields defined
    // via fileInput setting and paste or drop events of the given dropZone.
    // In addition to the default jQuery Widget methods, the fileupload widget
    // exposes the "add" and "send" methods, to add or directly send files using
    // the fileupload API.
    // By default, files added via file input selection, paste, drag & drop or
    // "add" method are uploaded immediately, but it is possible to override
    // the "add" callback option to queue file uploads.
    $.widget('blueimp.fileupload', {

        options: {
            // The drop target element(s), by the default the complete document.
            // Set to null to disable drag & drop support:
            dropZone: $(document),
            // The paste target element(s), by the default undefined.
            // Set to a DOM node or jQuery object to enable file pasting:
            pasteZone: undefined,
            // The file input field(s), that are listened to for change events.
            // If undefined, it is set to the file input fields inside
            // of the widget element on plugin initialization.
            // Set to null to disable the change listener.
            fileInput: undefined,
            // By default, the file input field is replaced with a clone after
            // each input field change event. This is required for iframe transport
            // queues and allows change events to be fired for the same file
            // selection, but can be disabled by setting the following option to false:
            replaceFileInput: true,
            // The parameter name for the file form data (the request argument name).
            // If undefined or empty, the name property of the file input field is
            // used, or "files[]" if the file input name property is also empty,
            // can be a string or an array of strings:
            paramName: undefined,
            // By default, each file of a selection is uploaded using an individual
            // request for XHR type uploads. Set to false to upload file
            // selections in one request each:
            singleFileUploads: true,
            // To limit the number of files uploaded with one XHR request,
            // set the following option to an integer greater than 0:
            limitMultiFileUploads: undefined,
            // The following option limits the number of files uploaded with one
            // XHR request to keep the request size under or equal to the defined
            // limit in bytes:
            limitMultiFileUploadSize: undefined,
            // Multipart file uploads add a number of bytes to each uploaded file,
            // therefore the following option adds an overhead for each file used
            // in the limitMultiFileUploadSize configuration:
            limitMultiFileUploadSizeOverhead: 512,
            // Set the following option to true to issue all file upload requests
            // in a sequential order:
            sequentialUploads: false,
            // To limit the number of concurrent uploads,
            // set the following option to an integer greater than 0:
            limitConcurrentUploads: undefined,
            // Set the following option to true to force iframe transport uploads:
            forceIframeTransport: false,
            // Set the following option to the location of a redirect url on the
            // origin server, for cross-domain iframe transport uploads:
            redirect: undefined,
            // The parameter name for the redirect url, sent as part of the form
            // data and set to 'redirect' if this option is empty:
            redirectParamName: undefined,
            // Set the following option to the location of a postMessage window,
            // to enable postMessage transport uploads:
            postMessage: undefined,
            // By default, XHR file uploads are sent as multipart/form-data.
            // The iframe transport is always using multipart/form-data.
            // Set to false to enable non-multipart XHR uploads:
            multipart: true,
            // To upload large files in smaller chunks, set the following option
            // to a preferred maximum chunk size. If set to 0, null or undefined,
            // or the browser does not support the required Blob API, files will
            // be uploaded as a whole.
            maxChunkSize: undefined,
            // When a non-multipart upload or a chunked multipart upload has been
            // aborted, this option can be used to resume the upload by setting
            // it to the size of the already uploaded bytes. This option is most
            // useful when modifying the options object inside of the "add" or
            // "send" callbacks, as the options are cloned for each file upload.
            uploadedBytes: undefined,
            // By default, failed (abort or error) file uploads are removed from the
            // global progress calculation. Set the following option to false to
            // prevent recalculating the global progress data:
            recalculateProgress: true,
            // Interval in milliseconds to calculate and trigger progress events:
            progressInterval: 100,
            // Interval in milliseconds to calculate progress bitrate:
            bitrateInterval: 500,
            // By default, uploads are started automatically when adding files:
            autoUpload: true,

            // Error and info messages:
            messages: {
                uploadedBytes: 'Uploaded bytes exceed file size'
            },

            // Translation function, gets the message key to be translated
            // and an object with context specific data as arguments:
            i18n: function (message, context) {
                message = this.messages[message] || message.toString();
                if (context) {
                    $.each(context, function (key, value) {
                        message = message.replace('{' + key + '}', value);
                    });
                }
                return message;
            },

            // Additional form data to be sent along with the file uploads can be set
            // using this option, which accepts an array of objects with name and
            // value properties, a function returning such an array, a FormData
            // object (for XHR file uploads), or a simple object.
            // The form of the first fileInput is given as parameter to the function:
            formData: function (form) {
                return form.serializeArray();
            },

            // The add callback is invoked as soon as files are added to the fileupload
            // widget (via file input selection, drag & drop, paste or add API call).
            // If the singleFileUploads option is enabled, this callback will be
            // called once for each file in the selection for XHR file uploads, else
            // once for each file selection.
            //
            // The upload starts when the submit method is invoked on the data parameter.
            // The data object contains a files property holding the added files
            // and allows you to override plugin options as well as define ajax settings.
            //
            // Listeners for this callback can also be bound the following way:
            // .bind('fileuploadadd', func);
            //
            // data.submit() returns a Promise object and allows to attach additional
            // handlers using jQuery's Deferred callbacks:
            // data.submit().done(func).fail(func).always(func);
            add: function (e, data) {
                if (e.isDefaultPrevented()) {
                    return false;
                }
                if (data.autoUpload || (data.autoUpload !== false &&
                        $(this).fileupload('option', 'autoUpload'))) {
                    data.process().done(function () {
                        data.submit();
                    });
                }
            },

            // Other callbacks:

            // Callback for the submit event of each file upload:
            // submit: function (e, data) {}, // .bind('fileuploadsubmit', func);

            // Callback for the start of each file upload request:
            // send: function (e, data) {}, // .bind('fileuploadsend', func);

            // Callback for successful uploads:
            // done: function (e, data) {}, // .bind('fileuploaddone', func);

            // Callback for failed (abort or error) uploads:
            // fail: function (e, data) {}, // .bind('fileuploadfail', func);

            // Callback for completed (success, abort or error) requests:
            // always: function (e, data) {}, // .bind('fileuploadalways', func);

            // Callback for upload progress events:
            // progress: function (e, data) {}, // .bind('fileuploadprogress', func);

            // Callback for global upload progress events:
            // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func);

            // Callback for uploads start, equivalent to the global ajaxStart event:
            // start: function (e) {}, // .bind('fileuploadstart', func);

            // Callback for uploads stop, equivalent to the global ajaxStop event:
            // stop: function (e) {}, // .bind('fileuploadstop', func);

            // Callback for change events of the fileInput(s):
            // change: function (e, data) {}, // .bind('fileuploadchange', func);

            // Callback for paste events to the pasteZone(s):
            // paste: function (e, data) {}, // .bind('fileuploadpaste', func);

            // Callback for drop events of the dropZone(s):
            // drop: function (e, data) {}, // .bind('fileuploaddrop', func);

            // Callback for dragover events of the dropZone(s):
            // dragover: function (e) {}, // .bind('fileuploaddragover', func);

            // Callback for the start of each chunk upload request:
            // chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func);

            // Callback for successful chunk uploads:
            // chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func);

            // Callback for failed (abort or error) chunk uploads:
            // chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func);

            // Callback for completed (success, abort or error) chunk upload requests:
            // chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func);

            // The plugin options are used as settings object for the ajax calls.
            // The following are jQuery ajax settings required for the file uploads:
            processData: false,
            contentType: false,
            cache: false,
            timeout: 0
        },

        // A list of options that require reinitializing event listeners and/or
        // special initialization code:
        _specialOptions: [
            'fileInput',
            'dropZone',
            'pasteZone',
            'multipart',
            'forceIframeTransport'
        ],

        _blobSlice: $.support.blobSlice && function () {
            var slice = this.slice || this.webkitSlice || this.mozSlice;
            return slice.apply(this, arguments);
        },

        _BitrateTimer: function () {
            this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime());
            this.loaded = 0;
            this.bitrate = 0;
            this.getBitrate = function (now, loaded, interval) {
                var timeDiff = now - this.timestamp;
                if (!this.bitrate || !interval || timeDiff > interval) {
                    this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8;
                    this.loaded = loaded;
                    this.timestamp = now;
                }
                return this.bitrate;
            };
        },

        _isXHRUpload: function (options) {
            return !options.forceIframeTransport &&
                ((!options.multipart && $.support.xhrFileUpload) ||
                $.support.xhrFormDataFileUpload);
        },

        _getFormData: function (options) {
            var formData;
            if ($.type(options.formData) === 'function') {
                return options.formData(options.form);
            }
            if ($.isArray(options.formData)) {
                return options.formData;
            }
            if ($.type(options.formData) === 'object') {
                formData = [];
                $.each(options.formData, function (name, value) {
                    formData.push({name: name, value: value});
                });
                return formData;
            }
            return [];
        },

        _getTotal: function (files) {
            var total = 0;
            $.each(files, function (index, file) {
                total += file.size || 1;
            });
            return total;
        },

        _initProgressObject: function (obj) {
            var progress = {
                loaded: 0,
                total: 0,
                bitrate: 0
            };
            if (obj._progress) {
                $.extend(obj._progress, progress);
            } else {
                obj._progress = progress;
            }
        },

        _initResponseObject: function (obj) {
            var prop;
            if (obj._response) {
                for (prop in obj._response) {
                    if (obj._response.hasOwnProperty(prop)) {
                        delete obj._response[prop];
                    }
                }
            } else {
                obj._response = {};
            }
        },

        _onProgress: function (e, data) {
            if (e.lengthComputable) {
                var now = ((Date.now) ? Date.now() : (new Date()).getTime()),
                    loaded;
                if (data._time && data.progressInterval &&
                        (now - data._time < data.progressInterval) &&
                        e.loaded !== e.total) {
                    return;
                }
                data._time = now;
                loaded = Math.floor(
                    e.loaded / e.total * (data.chunkSize || data._progress.total)
                ) + (data.uploadedBytes || 0);
                // Add the difference from the previously loaded state
                // to the global loaded counter:
                this._progress.loaded += (loaded - data._progress.loaded);
                this._progress.bitrate = this._bitrateTimer.getBitrate(
                    now,
                    this._progress.loaded,
                    data.bitrateInterval
                );
                data._progress.loaded = data.loaded = loaded;
                data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate(
                    now,
                    loaded,
                    data.bitrateInterval
                );
                // Trigger a custom progress event with a total data property set
                // to the file size(s) of the current upload and a loaded data
                // property calculated accordingly:
                this._trigger(
                    'progress',
                    $.Event('progress', {delegatedEvent: e}),
                    data
                );
                // Trigger a global progress event for all current file uploads,
                // including ajax calls queued for sequential file uploads:
                this._trigger(
                    'progressall',
                    $.Event('progressall', {delegatedEvent: e}),
                    this._progress
                );
            }
        },

        _initProgressListener: function (options) {
            var that = this,
                xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr();
            // Accesss to the native XHR object is required to add event listeners
            // for the upload progress event:
            if (xhr.upload) {
                $(xhr.upload).bind('progress', function (e) {
                    var oe = e.originalEvent;
                    // Make sure the progress event properties get copied over:
                    e.lengthComputable = oe.lengthComputable;
                    e.loaded = oe.loaded;
                    e.total = oe.total;
                    that._onProgress(e, options);
                });
                options.xhr = function () {
                    return xhr;
                };
            }
        },

        _isInstanceOf: function (type, obj) {
            // Cross-frame instanceof check
            return Object.prototype.toString.call(obj) === '[object ' + type + ']';
        },

        _initXHRData: function (options) {
            var that = this,
                formData,
                file = options.files[0],
                // Ignore non-multipart setting if not supported:
                multipart = options.multipart || !$.support.xhrFileUpload,
                paramName = $.type(options.paramName) === 'array' ?
                    options.paramName[0] : options.paramName;
            options.headers = $.extend({}, options.headers);
            if (options.contentRange) {
                options.headers['Content-Range'] = options.contentRange;
            }
            if (!multipart || options.blob || !this._isInstanceOf('File', file)) {
                options.headers['Content-Disposition'] = 'attachment; filename="' +
                    encodeURI(file.name) + '"';
            }
            if (!multipart) {
                options.contentType = file.type || 'application/octet-stream';
                options.data = options.blob || file;
            } else if ($.support.xhrFormDataFileUpload) {
                if (options.postMessage) {
                    // window.postMessage does not allow sending FormData
                    // objects, so we just add the File/Blob objects to
                    // the formData array and let the postMessage window
                    // create the FormData object out of this array:
                    formData = this._getFormData(options);
                    if (options.blob) {
                        formData.push({
                            name: paramName,
                            value: options.blob
                        });
                    } else {
                        $.each(options.files, function (index, file) {
                            formData.push({
                                name: ($.type(options.paramName) === 'array' &&
                                    options.paramName[index]) || paramName,
                                value: file
                            });
                        });
                    }
                } else {
                    if (that._isInstanceOf('FormData', options.formData)) {
                        formData = options.formData;
                    } else {
                        formData = new FormData();
                        $.each(this._getFormData(options), function (index, field) {
                            formData.append(field.name, field.value);
                        });
                    }
                    if (options.blob) {
                        formData.append(paramName, options.blob, file.name);
                    } else {
                        $.each(options.files, function (index, file) {
                            // This check allows the tests to run with
                            // dummy objects:
                            if (that._isInstanceOf('File', file) ||
                                    that._isInstanceOf('Blob', file)) {
                                formData.append(
                                    ($.type(options.paramName) === 'array' &&
                                        options.paramName[index]) || paramName,
                                    file,
                                    file.uploadName || file.name
                                );
                            }
                        });
                    }
                }
                options.data = formData;
            }
            // Blob reference is not needed anymore, free memory:
            options.blob = null;
        },

        _initIframeSettings: function (options) {
            var targetHost = $('<a></a>').prop('href', options.url).prop('host');
            // Setting the dataType to iframe enables the iframe transport:
            options.dataType = 'iframe ' + (options.dataType || '');
            // The iframe transport accepts a serialized array as form data:
            options.formData = this._getFormData(options);
            // Add redirect url to form data on cross-domain uploads:
            if (options.redirect && targetHost && targetHost !== location.host) {
                options.formData.push({
                    name: options.redirectParamName || 'redirect',
                    value: options.redirect
                });
            }
        },

        _initDataSettings: function (options) {
            if (this._isXHRUpload(options)) {
                if (!this._chunkedUpload(options, true)) {
                    if (!options.data) {
                        this._initXHRData(options);
                    }
                    this._initProgressListener(options);
                }
                if (options.postMessage) {
                    // Setting the dataType to postmessage enables the
                    // postMessage transport:
                    options.dataType = 'postmessage ' + (options.dataType || '');
                }
            } else {
                this._initIframeSettings(options);
            }
        },

        _getParamName: function (options) {
            var fileInput = $(options.fileInput),
                paramName = options.paramName;
            if (!paramName) {
                paramName = [];
                fileInput.each(function () {
                    var input = $(this),
                        name = input.prop('name') || 'files[]',
                        i = (input.prop('files') || [1]).length;
                    while (i) {
                        paramName.push(name);
                        i -= 1;
                    }
                });
                if (!paramName.length) {
                    paramName = [fileInput.prop('name') || 'files[]'];
                }
            } else if (!$.isArray(paramName)) {
                paramName = [paramName];
            }
            return paramName;
        },

        _initFormSettings: function (options) {
            // Retrieve missing options from the input field and the
            // associated form, if available:
            if (!options.form || !options.form.length) {
                options.form = $(options.fileInput.prop('form'));
                // If the given file input doesn't have an associated form,
                // use the default widget file input's form:
                if (!options.form.length) {
                    options.form = $(this.options.fileInput.prop('form'));
                }
            }
            options.paramName = this._getParamName(options);
            if (!options.url) {
                options.url = options.form.prop('action') || location.href;
            }
            // The HTTP request method must be "POST" or "PUT":
            options.type = (options.type ||
                ($.type(options.form.prop('method')) === 'string' &&
                    options.form.prop('method')) || ''
                ).toUpperCase();
            if (options.type !== 'POST' && options.type !== 'PUT' &&
                    options.type !== 'PATCH') {
                options.type = 'POST';
            }
            if (!options.formAcceptCharset) {
                options.formAcceptCharset = options.form.attr('accept-charset');
            }
        },

        _getAJAXSettings: function (data) {
            var options = $.extend({}, this.options, data);
            this._initFormSettings(options);
            this._initDataSettings(options);
            return options;
        },

        // jQuery 1.6 doesn't provide .state(),
        // while jQuery 1.8+ removed .isRejected() and .isResolved():
        _getDeferredState: function (deferred) {
            if (deferred.state) {
                return deferred.state();
            }
            if (deferred.isResolved()) {
                return 'resolved';
            }
            if (deferred.isRejected()) {
                return 'rejected';
            }
            return 'pending';
        },

        // Maps jqXHR callbacks to the equivalent
        // methods of the given Promise object:
        _enhancePromise: function (promise) {
            promise.success = promise.done;
            promise.error = promise.fail;
            promise.complete = promise.always;
            return promise;
        },

        // Creates and returns a Promise object enhanced with
        // the jqXHR methods abort, success, error and complete:
        _getXHRPromise: function (resolveOrReject, context, args) {
            var dfd = $.Deferred(),
                promise = dfd.promise();
            context = context || this.options.context || promise;
            if (resolveOrReject === true) {
                dfd.resolveWith(context, args);
            } else if (resolveOrReject === false) {
                dfd.rejectWith(context, args);
            }
            promise.abort = dfd.promise;
            return this._enhancePromise(promise);
        },

        // Adds convenience methods to the data callback argument:
        _addConvenienceMethods: function (e, data) {
            var that = this,
                getPromise = function (args) {
                    return $.Deferred().resolveWith(that, args).promise();
                };
            data.process = function (resolveFunc, rejectFunc) {
                if (resolveFunc || rejectFunc) {
                    data._processQueue = this._processQueue =
                        (this._processQueue || getPromise([this])).then(
                            function () {
                                if (data.errorThrown) {
                                    return $.Deferred()
                                        .rejectWith(that, [data]).promise();
                                }
                                return getPromise(arguments);
                            }
                        ).then(resolveFunc, rejectFunc);
                }
                return this._processQueue || getPromise([this]);
            };
            data.submit = function () {
                if (this.state() !== 'pending') {
                    data.jqXHR = this.jqXHR =
                        (that._trigger(
                            'submit',
                            $.Event('submit', {delegatedEvent: e}),
                            this
                        ) !== false) && that._onSend(e, this);
                }
                return this.jqXHR || that._getXHRPromise();
            };
            data.abort = function () {
                if (this.jqXHR) {
                    return this.jqXHR.abort();
                }
                this.errorThrown = 'abort';
                that._trigger('fail', null, this);
                return that._getXHRPromise(false);
            };
            data.state = function () {
                if (this.jqXHR) {
                    return that._getDeferredState(this.jqXHR);
                }
                if (this._processQueue) {
                    return that._getDeferredState(this._processQueue);
                }
            };
            data.processing = function () {
                return !this.jqXHR && this._processQueue && that
                    ._getDeferredState(this._processQueue) === 'pending';
            };
            data.progress = function () {
                return this._progress;
            };
            data.response = function () {
                return this._response;
            };
        },

        // Parses the Range header from the server response
        // and returns the uploaded bytes:
        _getUploadedBytes: function (jqXHR) {
            var range = jqXHR.getResponseHeader('Range'),
                parts = range && range.split('-'),
                upperBytesPos = parts && parts.length > 1 &&
                    parseInt(parts[1], 10);
            return upperBytesPos && upperBytesPos + 1;
        },

        // Uploads a file in multiple, sequential requests
        // by splitting the file up in multiple blob chunks.
        // If the second parameter is true, only tests if the file
        // should be uploaded in chunks, but does not invoke any
        // upload requests:
        _chunkedUpload: function (options, testOnly) {
            options.uploadedBytes = options.uploadedBytes || 0;
            var that = this,
                file = options.files[0],
                fs = file.size,
                ub = options.uploadedBytes,
                mcs = options.maxChunkSize || fs,
                slice = this._blobSlice,
                dfd = $.Deferred(),
                promise = dfd.promise(),
                jqXHR,
                upload;
            if (!(this._isXHRUpload(options) && slice && (ub || mcs < fs)) ||
                    options.data) {
                return false;
            }
            if (testOnly) {
                return true;
            }
            if (ub >= fs) {
                file.error = options.i18n('uploadedBytes');
                return this._getXHRPromise(
                    false,
                    options.context,
                    [null, 'error', file.error]
                );
            }
            // The chunk upload method:
            upload = function () {
                // Clone the options object for each chunk upload:
                var o = $.extend({}, options),
                    currentLoaded = o._progress.loaded;
                o.blob = slice.call(
                    file,
                    ub,
                    ub + mcs,
                    file.type
                );
                // Store the current chunk size, as the blob itself
                // will be dereferenced after data processing:
                o.chunkSize = o.blob.size;
                // Expose the chunk bytes position range:
                o.contentRange = 'bytes ' + ub + '-' +
                    (ub + o.chunkSize - 1) + '/' + fs;
                // Process the upload data (the blob and potential form data):
                that._initXHRData(o);
                // Add progress listeners for this chunk upload:
                that._initProgressListener(o);
                jqXHR = ((that._trigger('chunksend', null, o) !== false && $.ajax(o)) ||
                        that._getXHRPromise(false, o.context))
                    .done(function (result, textStatus, jqXHR) {
                        ub = that._getUploadedBytes(jqXHR) ||
                            (ub + o.chunkSize);
                        // Create a progress event if no final progress event
                        // with loaded equaling total has been triggered
                        // for this chunk:
                        if (currentLoaded + o.chunkSize - o._progress.loaded) {
                            that._onProgress($.Event('progress', {
                                lengthComputable: true,
                                loaded: ub - o.uploadedBytes,
                                total: ub - o.uploadedBytes
                            }), o);
                        }
                        options.uploadedBytes = o.uploadedBytes = ub;
                        o.result = result;
                        o.textStatus = textStatus;
                        o.jqXHR = jqXHR;
                        that._trigger('chunkdone', null, o);
                        that._trigger('chunkalways', null, o);
                        if (ub < fs) {
                            // File upload not yet complete,
                            // continue with the next chunk:
                            upload();
                        } else {
                            dfd.resolveWith(
                                o.context,
                                [result, textStatus, jqXHR]
                            );
                        }
                    })
                    .fail(function (jqXHR, textStatus, errorThrown) {
                        o.jqXHR = jqXHR;
                        o.textStatus = textStatus;
                        o.errorThrown = errorThrown;
                        that._trigger('chunkfail', null, o);
                        that._trigger('chunkalways', null, o);
                        dfd.rejectWith(
                            o.context,
                            [jqXHR, textStatus, errorThrown]
                        );
                    });
            };
            this._enhancePromise(promise);
            promise.abort = function () {
                return jqXHR.abort();
            };
            upload();
            return promise;
        },

        _beforeSend: function (e, data) {
            if (this._active === 0) {
                // the start callback is triggered when an upload starts
                // and no other uploads are currently running,
                // equivalent to the global ajaxStart event:
                this._trigger('start');
                // Set timer for global bitrate progress calculation:
                this._bitrateTimer = new this._BitrateTimer();
                // Reset the global progress values:
                this._progress.loaded = this._progress.total = 0;
                this._progress.bitrate = 0;
            }
            // Make sure the container objects for the .response() and
            // .progress() methods on the data object are available
            // and reset to their initial state:
            this._initResponseObject(data);
            this._initProgressObject(data);
            data._progress.loaded = data.loaded = data.uploadedBytes || 0;
            data._progress.total = data.total = this._getTotal(data.files) || 1;
            data._progress.bitrate = data.bitrate = 0;
            this._active += 1;
            // Initialize the global progress values:
            this._progress.loaded += data.loaded;
            this._progress.total += data.total;
        },

        _onDone: function (result, textStatus, jqXHR, options) {
            var total = options._progress.total,
                response = options._response;
            if (options._progress.loaded < total) {
                // Create a progress event if no final progress event
                // with loaded equaling total has been triggered:
                this._onProgress($.Event('progress', {
                    lengthComputable: true,
                    loaded: total,
                    total: total
                }), options);
            }
            response.result = options.result = result;
            response.textStatus = options.textStatus = textStatus;
            response.jqXHR = options.jqXHR = jqXHR;
            this._trigger('done', null, options);
        },

        _onFail: function (jqXHR, textStatus, errorThrown, options) {
            var response = options._response;
            if (options.recalculateProgress) {
                // Remove the failed (error or abort) file upload from
                // the global progress calculation:
                this._progress.loaded -= options._progress.loaded;
                this._progress.total -= options._progress.total;
            }
            response.jqXHR = options.jqXHR = jqXHR;
            response.textStatus = options.textStatus = textStatus;
            response.errorThrown = options.errorThrown = errorThrown;
            this._trigger('fail', null, options);
        },

        _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) {
            // jqXHRorResult, textStatus and jqXHRorError are added to the
            // options object via done and fail callbacks
            this._trigger('always', null, options);
        },

        _onSend: function (e, data) {
            if (!data.submit) {
                this._addConvenienceMethods(e, data);
            }
            var that = this,
                jqXHR,
                aborted,
                slot,
                pipe,
                options = that._getAJAXSettings(data),
                send = function () {
                    that._sending += 1;
                    // Set timer for bitrate progress calculation:
                    options._bitrateTimer = new that._BitrateTimer();
                    jqXHR = jqXHR || (
                        ((aborted || that._trigger(
                            'send',
                            $.Event('send', {delegatedEvent: e}),
                            options
                        ) === false) &&
                        that._getXHRPromise(false, options.context, aborted)) ||
                        that._chunkedUpload(options) || $.ajax(options)
                    ).done(function (result, textStatus, jqXHR) {
                        that._onDone(result, textStatus, jqXHR, options);
                    }).fail(function (jqXHR, textStatus, errorThrown) {
                        that._onFail(jqXHR, textStatus, errorThrown, options);
                    }).always(function (jqXHRorResult, textStatus, jqXHRorError) {
                        that._onAlways(
                            jqXHRorResult,
                            textStatus,
                            jqXHRorError,
                            options
                        );
                        that._sending -= 1;
                        that._active -= 1;
                        if (options.limitConcurrentUploads &&
                                options.limitConcurrentUploads > that._sending) {
                            // Start the next queued upload,
                            // that has not been aborted:
                            var nextSlot = that._slots.shift();
                            while (nextSlot) {
                                if (that._getDeferredState(nextSlot) === 'pending') {
                                    nextSlot.resolve();
                                    break;
                                }
                                nextSlot = that._slots.shift();
                            }
                        }
                        if (that._active === 0) {
                            // The stop callback is triggered when all uploads have
                            // been completed, equivalent to the global ajaxStop event:
                            that._trigger('stop');
                        }
                    });
                    return jqXHR;
                };
            this._beforeSend(e, options);
            if (this.options.sequentialUploads ||
                    (this.options.limitConcurrentUploads &&
                    this.options.limitConcurrentUploads <= this._sending)) {
                if (this.options.limitConcurrentUploads > 1) {
                    slot = $.Deferred();
                    this._slots.push(slot);
                    pipe = slot.then(send);
                } else {
                    this._sequence = this._sequence.then(send, send);
                    pipe = this._sequence;
                }
                // Return the piped Promise object, enhanced with an abort method,
                // which is delegated to the jqXHR object of the current upload,
                // and jqXHR callbacks mapped to the equivalent Promise methods:
                pipe.abort = function () {
                    aborted = [undefined, 'abort', 'abort'];
                    if (!jqXHR) {
                        if (slot) {
                            slot.rejectWith(options.context, aborted);
                        }
                        return send();
                    }
                    return jqXHR.abort();
                };
                return this._enhancePromise(pipe);
            }
            return send();
        },

        _onAdd: function (e, data) {
            var that = this,
                result = true,
                options = $.extend({}, this.options, data),
                files = data.files,
                filesLength = files.length,
                limit = options.limitMultiFileUploads,
                limitSize = options.limitMultiFileUploadSize,
                overhead = options.limitMultiFileUploadSizeOverhead,
                batchSize = 0,
                paramName = this._getParamName(options),
                paramNameSet,
                paramNameSlice,
                fileSet,
                i,
                j = 0;
            if (!filesLength) {
                return false;
            }
            if (limitSize && files[0].size === undefined) {
                limitSize = undefined;
            }
            if (!(options.singleFileUploads || limit || limitSize) ||
                    !this._isXHRUpload(options)) {
                fileSet = [files];
                paramNameSet = [paramName];
            } else if (!(options.singleFileUploads || limitSize) && limit) {
                fileSet = [];
                paramNameSet = [];
                for (i = 0; i < filesLength; i += limit) {
                    fileSet.push(files.slice(i, i + limit));
                    paramNameSlice = paramName.slice(i, i + limit);
                    if (!paramNameSlice.length) {
                        paramNameSlice = paramName;
                    }
                    paramNameSet.push(paramNameSlice);
                }
            } else if (!options.singleFileUploads && limitSize) {
                fileSet = [];
                paramNameSet = [];
                for (i = 0; i < filesLength; i = i + 1) {
                    batchSize += files[i].size + overhead;
                    if (i + 1 === filesLength ||
                            ((batchSize + files[i + 1].size + overhead) > limitSize) ||
                            (limit && i + 1 - j >= limit)) {
                        fileSet.push(files.slice(j, i + 1));
                        paramNameSlice = paramName.slice(j, i + 1);
                        if (!paramNameSlice.length) {
                            paramNameSlice = paramName;
                        }
                        paramNameSet.push(paramNameSlice);
                        j = i + 1;
                        batchSize = 0;
                    }
                }
            } else {
                paramNameSet = paramName;
            }
            data.originalFiles = files;
            $.each(fileSet || files, function (index, element) {
                var newData = $.extend({}, data);
                newData.files = fileSet ? element : [element];
                newData.paramName = paramNameSet[index];
                that._initResponseObject(newData);
                that._initProgressObject(newData);
                that._addConvenienceMethods(e, newData);
                result = that._trigger(
                    'add',
                    $.Event('add', {delegatedEvent: e}),
                    newData
                );
                return result;
            });
            return result;
        },

        _replaceFileInput: function (data) {
            var input = data.fileInput,
                inputClone = input.clone(true),
                restoreFocus = input.is(document.activeElement);
            // Add a reference for the new cloned file input to the data argument:
            data.fileInputClone = inputClone;
            $('<form></form>').append(inputClone)[0].reset();
            // Detaching allows to insert the fileInput on another form
            // without loosing the file input value:
            input.after(inputClone).detach();
            // If the fileInput had focus before it was detached,
            // restore focus to the inputClone.
            if (restoreFocus) {
                inputClone.focus();
            }
            // Avoid memory leaks with the detached file input:
            $.cleanData(input.unbind('remove'));
            // Replace the original file input element in the fileInput
            // elements set with the clone, which has been copied including
            // event handlers:
            this.options.fileInput = this.options.fileInput.map(function (i, el) {
                if (el === input[0]) {
                    return inputClone[0];
                }
                return el;
            });
            // If the widget has been initialized on the file input itself,
            // override this.element with the file input clone:
            if (input[0] === this.element[0]) {
                this.element = inputClone;
            }
        },

        _handleFileTreeEntry: function (entry, path) {
            var that = this,
                dfd = $.Deferred(),
                entries = [],
                dirReader,
                errorHandler = function (e) {
                    if (e && !e.entry) {
                        e.entry = entry;
                    }
                    // Since $.when returns immediately if one
                    // Deferred is rejected, we use resolve instead.
                    // This allows valid files and invalid items
                    // to be returned together in one set:
                    dfd.resolve([e]);
                },
                successHandler = function (entries) {
                    that._handleFileTreeEntries(
                        entries,
                        path + entry.name + '/'
                    ).done(function (files) {
                        dfd.resolve(files);
                    }).fail(errorHandler);
                },
                readEntries = function () {
                    dirReader.readEntries(function (results) {
                        if (!results.length) {
                            successHandler(entries);
                        } else {
                            entries = entries.concat(results);
                            readEntries();
                        }
                    }, errorHandler);
                };
            path = path || '';
            if (entry.isFile) {
                if (entry._file) {
                    // Workaround for Chrome bug #149735
                    entry._file.relativePath = path;
                    dfd.resolve(entry._file);
                } else {
                    entry.file(function (file) {
                        file.relativePath = path;
                        dfd.resolve(file);
                    }, errorHandler);
                }
            } else if (entry.isDirectory) {
                dirReader = entry.createReader();
                readEntries();
            } else {
                // Return an empy list for file system items
                // other than files or directories:
                dfd.resolve([]);
            }
            return dfd.promise();
        },

        _handleFileTreeEntries: function (entries, path) {
            var that = this;
            return $.when.apply(
                $,
                $.map(entries, function (entry) {
                    return that._handleFileTreeEntry(entry, path);
                })
            ).then(function () {
                return Array.prototype.concat.apply(
                    [],
                    arguments
                );
            });
        },

        _getDroppedFiles: function (dataTransfer) {
            dataTransfer = dataTransfer || {};
            var items = dataTransfer.items;
            if (items && items.length && (items[0].webkitGetAsEntry ||
                    items[0].getAsEntry)) {
                return this._handleFileTreeEntries(
                    $.map(items, function (item) {
                        var entry;
                        if (item.webkitGetAsEntry) {
                            entry = item.webkitGetAsEntry();
                            if (entry) {
                                // Workaround for Chrome bug #149735:
                                entry._file = item.getAsFile();
                            }
                            return entry;
                        }
                        return item.getAsEntry();
                    })
                );
            }
            return $.Deferred().resolve(
                $.makeArray(dataTransfer.files)
            ).promise();
        },

        _getSingleFileInputFiles: function (fileInput) {
            fileInput = $(fileInput);
            var entries = fileInput.prop('webkitEntries') ||
                    fileInput.prop('entries'),
                files,
                value;
            if (entries && entries.length) {
                return this._handleFileTreeEntries(entries);
            }
            files = $.makeArray(fileInput.prop('files'));
            if (!files.length) {
                value = fileInput.prop('value');
                if (!value) {
                    return $.Deferred().resolve([]).promise();
                }
                // If the files property is not available, the browser does not
                // support the File API and we add a pseudo File object with
                // the input value as name with path information removed:
                files = [{name: value.replace(/^.*\\/, '')}];
            } else if (files[0].name === undefined && files[0].fileName) {
                // File normalization for Safari 4 and Firefox 3:
                $.each(files, function (index, file) {
                    file.name = file.fileName;
                    file.size = file.fileSize;
                });
            }
            return $.Deferred().resolve(files).promise();
        },

        _getFileInputFiles: function (fileInput) {
            if (!(fileInput instanceof $) || fileInput.length === 1) {
                return this._getSingleFileInputFiles(fileInput);
            }
            return $.when.apply(
                $,
                $.map(fileInput, this._getSingleFileInputFiles)
            ).then(function () {
                return Array.prototype.concat.apply(
                    [],
                    arguments
                );
            });
        },

        _onChange: function (e) {
            var that = this,
                data = {
                    fileInput: $(e.target),
                    form: $(e.target.form)
                };
            this._getFileInputFiles(data.fileInput).always(function (files) {
                data.files = files;
                if (that.options.replaceFileInput) {
                    that._replaceFileInput(data);
                }
                if (that._trigger(
                        'change',
                        $.Event('change', {delegatedEvent: e}),
                        data
                    ) !== false) {
                    that._onAdd(e, data);
                }
            });
        },

        _onPaste: function (e) {
            var items = e.originalEvent && e.originalEvent.clipboardData &&
                    e.originalEvent.clipboardData.items,
                data = {files: []};
            if (items && items.length) {
                $.each(items, function (index, item) {
                    var file = item.getAsFile && item.getAsFile();
                    if (file) {
                        data.files.push(file);
                    }
                });
                if (this._trigger(
                        'paste',
                        $.Event('paste', {delegatedEvent: e}),
                        data
                    ) !== false) {
                    this._onAdd(e, data);
                }
            }
        },

        _onDrop: function (e) {
            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
            var that = this,
                dataTransfer = e.dataTransfer,
                data = {};
            if (dataTransfer && dataTransfer.files && dataTransfer.files.length) {
                e.preventDefault();
                this._getDroppedFiles(dataTransfer).always(function (files) {
                    data.files = files;
                    if (that._trigger(
                            'drop',
                            $.Event('drop', {delegatedEvent: e}),
                            data
                        ) !== false) {
                        that._onAdd(e, data);
                    }
                });
            }
        },

        _onDragOver: getDragHandler('dragover'),

        _onDragEnter: getDragHandler('dragenter'),

        _onDragLeave: getDragHandler('dragleave'),

        _initEventHandlers: function () {
            if (this._isXHRUpload(this.options)) {
                this._on(this.options.dropZone, {
                    dragover: this._onDragOver,
                    drop: this._onDrop,
                    // event.preventDefault() on dragenter is required for IE10+:
                    dragenter: this._onDragEnter,
                    // dragleave is not required, but added for completeness:
                    dragleave: this._onDragLeave
                });
                this._on(this.options.pasteZone, {
                    paste: this._onPaste
                });
            }
            if ($.support.fileInput) {
                this._on(this.options.fileInput, {
                    change: this._onChange
                });
            }
        },

        _destroyEventHandlers: function () {
            this._off(this.options.dropZone, 'dragenter dragleave dragover drop');
            this._off(this.options.pasteZone, 'paste');
            this._off(this.options.fileInput, 'change');
        },

        _destroy: function () {
            this._destroyEventHandlers();
        },

        _setOption: function (key, value) {
            var reinit = $.inArray(key, this._specialOptions) !== -1;
            if (reinit) {
                this._destroyEventHandlers();
            }
            this._super(key, value);
            if (reinit) {
                this._initSpecialOptions();
                this._initEventHandlers();
            }
        },

        _initSpecialOptions: function () {
            var options = this.options;
            if (options.fileInput === undefined) {
                options.fileInput = this.element.is('input[type="file"]') ?
                        this.element : this.element.find('input[type="file"]');
            } else if (!(options.fileInput instanceof $)) {
                options.fileInput = $(options.fileInput);
            }
            if (!(options.dropZone instanceof $)) {
                options.dropZone = $(options.dropZone);
            }
            if (!(options.pasteZone instanceof $)) {
                options.pasteZone = $(options.pasteZone);
            }
        },

        _getRegExp: function (str) {
            var parts = str.split('/'),
                modifiers = parts.pop();
            parts.shift();
            return new RegExp(parts.join('/'), modifiers);
        },

        _isRegExpOption: function (key, value) {
            return key !== 'url' && $.type(value) === 'string' &&
                /^\/.*\/[igm]{0,3}$/.test(value);
        },

        _initDataAttributes: function () {
            var that = this,
                options = this.options,
                data = this.element.data();
            // Initialize options set via HTML5 data-attributes:
            $.each(
                this.element[0].attributes,
                function (index, attr) {
                    var key = attr.name.toLowerCase(),
                        value;
                    if (/^data-/.test(key)) {
                        // Convert hyphen-ated key to camelCase:
                        key = key.slice(5).replace(/-[a-z]/g, function (str) {
                            return str.charAt(1).toUpperCase();
                        });
                        value = data[key];
                        if (that._isRegExpOption(key, value)) {
                            value = that._getRegExp(value);
                        }
                        options[key] = value;
                    }
                }
            );
        },

        _create: function () {
            this._initDataAttributes();
            this._initSpecialOptions();
            this._slots = [];
            this._sequence = this._getXHRPromise(true);
            this._sending = this._active = 0;
            this._initProgressObject(this);
            this._initEventHandlers();
        },

        // This method is exposed to the widget API and allows to query
        // the number of active uploads:
        active: function () {
            return this._active;
        },

        // This method is exposed to the widget API and allows to query
        // the widget upload progress.
        // It returns an object with loaded, total and bitrate properties
        // for the running uploads:
        progress: function () {
            return this._progress;
        },

        // This method is exposed to the widget API and allows adding files
        // using the fileupload API. The data parameter accepts an object which
        // must have a files property and can contain additional options:
        // .fileupload('add', {files: filesList});
        add: function (data) {
            var that = this;
            if (!data || this.options.disabled) {
                return;
            }
            if (data.fileInput && !data.files) {
                this._getFileInputFiles(data.fileInput).always(function (files) {
                    data.files = files;
                    that._onAdd(null, data);
                });
            } else {
                data.files = $.makeArray(data.files);
                this._onAdd(null, data);
            }
        },

        // This method is exposed to the widget API and allows sending files
        // using the fileupload API. The data parameter accepts an object which
        // must have a files or fileInput property and can contain additional options:
        // .fileupload('send', {files: filesList});
        // The method returns a Promise object for the file upload call.
        send: function (data) {
            if (data && !this.options.disabled) {
                if (data.fileInput && !data.files) {
                    var that = this,
                        dfd = $.Deferred(),
                        promise = dfd.promise(),
                        jqXHR,
                        aborted;
                    promise.abort = function () {
                        aborted = true;
                        if (jqXHR) {
                            return jqXHR.abort();
                        }
                        dfd.reject(null, 'abort', 'abort');
                        return promise;
                    };
                    this._getFileInputFiles(data.fileInput).always(
                        function (files) {
                            if (aborted) {
                                return;
                            }
                            if (!files.length) {
                                dfd.reject();
                                return;
                            }
                            data.files = files;
                            jqXHR = that._onSend(null, data);
                            jqXHR.then(
                                function (result, textStatus, jqXHR) {
                                    dfd.resolve(result, textStatus, jqXHR);
                                },
                                function (jqXHR, textStatus, errorThrown) {
                                    dfd.reject(jqXHR, textStatus, errorThrown);
                                }
                            );
                        }
                    );
                    return this._enhancePromise(promise);
                }
                data.files = $.makeArray(data.files);
                if (data.files.length) {
                    return this._onSend(null, data);
                }
            }
            return this._getXHRPromise(false, data && data.context);
        }

    });

}));
/*!
 * pickadate.js v3.5.6, 2015/04/20
 * By Amsul, http://amsul.ca
 * Hosted on http://amsul.github.io/pickadate.js
 * Licensed under MIT
 */

(function ( factory ) {

    // AMD.
    if ( typeof define == 'function' && define.amd )
        define( 'picker', ['jquery'], factory )

    // Node.js/browserify.
    else if ( typeof exports == 'object' )
        module.exports = factory( require('jquery') )

    // Browser globals.
    else this.Picker = factory( jQuery )

}(function( $ ) {

var $window = $( window )
var $document = $( document )
var $html = $( document.documentElement )
var supportsTransitions = document.documentElement.style.transition != null


/**
 * The picker constructor that creates a blank picker.
 */
function PickerConstructor( ELEMENT, NAME, COMPONENT, OPTIONS ) {

    // If there’s no element, return the picker constructor.
    if ( !ELEMENT ) return PickerConstructor


    var
        IS_DEFAULT_THEME = false,


        // The state of the picker.
        STATE = {
            id: ELEMENT.id || 'P' + Math.abs( ~~(Math.random() * new Date()) )
        },


        // Merge the defaults and options passed.
        SETTINGS = COMPONENT ? $.extend( true, {}, COMPONENT.defaults, OPTIONS ) : OPTIONS || {},


        // Merge the default classes with the settings classes.
        CLASSES = $.extend( {}, PickerConstructor.klasses(), SETTINGS.klass ),


        // The element node wrapper into a jQuery object.
        $ELEMENT = $( ELEMENT ),


        // Pseudo picker constructor.
        PickerInstance = function() {
            return this.start()
        },


        // The picker prototype.
        P = PickerInstance.prototype = {

            constructor: PickerInstance,

            $node: $ELEMENT,


            /**
             * Initialize everything
             */
            start: function() {

                // If it’s already started, do nothing.
                if ( STATE && STATE.start ) return P


                // Update the picker states.
                STATE.methods = {}
                STATE.start = true
                STATE.open = false
                STATE.type = ELEMENT.type


                // Confirm focus state, convert into text input to remove UA stylings,
                // and set as readonly to prevent keyboard popup.
                ELEMENT.autofocus = ELEMENT == getActiveElement()
                ELEMENT.readOnly = !SETTINGS.editable
                ELEMENT.id = ELEMENT.id || STATE.id
                if ( ELEMENT.type != 'text' ) {
                    ELEMENT.type = 'text'
                }


                // Create a new picker component with the settings.
                P.component = new COMPONENT(P, SETTINGS)


                // Create the picker root and then prepare it.
                P.$root = $( '<div class="' + CLASSES.picker + '" id="' + ELEMENT.id + '_root" />' )
                prepareElementRoot()


                // Create the picker holder and then prepare it.
                P.$holder = $( createWrappedComponent() ).appendTo( P.$root )
                prepareElementHolder()


                // If there’s a format for the hidden input element, create the element.
                if ( SETTINGS.formatSubmit ) {
                    prepareElementHidden()
                }


                // Prepare the input element.
                prepareElement()


                // Insert the hidden input as specified in the settings.
                if ( SETTINGS.containerHidden ) $( SETTINGS.containerHidden ).append( P._hidden )
                else $ELEMENT.after( P._hidden )


                // Insert the root as specified in the settings.
                if ( SETTINGS.container ) $( SETTINGS.container ).append( P.$root )
                else $ELEMENT.after( P.$root )


                // Bind the default component and settings events.
                P.on({
                    start: P.component.onStart,
                    render: P.component.onRender,
                    stop: P.component.onStop,
                    open: P.component.onOpen,
                    close: P.component.onClose,
                    set: P.component.onSet
                }).on({
                    start: SETTINGS.onStart,
                    render: SETTINGS.onRender,
                    stop: SETTINGS.onStop,
                    open: SETTINGS.onOpen,
                    close: SETTINGS.onClose,
                    set: SETTINGS.onSet
                })


                // Once we’re all set, check the theme in use.
                IS_DEFAULT_THEME = isUsingDefaultTheme( P.$holder[0] )


                // If the element has autofocus, open the picker.
                if ( ELEMENT.autofocus ) {
                    P.open()
                }


                // Trigger queued the “start” and “render” events.
                return P.trigger( 'start' ).trigger( 'render' )
            }, //start


            /**
             * Render a new picker
             */
            render: function( entireComponent ) {

                // Insert a new component holder in the root or box.
                if ( entireComponent ) {
                    P.$holder = $( createWrappedComponent() )
                    prepareElementHolder()
                    P.$root.html( P.$holder )
                }
                else P.$root.find( '.' + CLASSES.box ).html( P.component.nodes( STATE.open ) )

                // Trigger the queued “render” events.
                return P.trigger( 'render' )
            }, //render


            /**
             * Destroy everything
             */
            stop: function() {

                // If it’s already stopped, do nothing.
                if ( !STATE.start ) return P

                // Then close the picker.
                P.close()

                // Remove the hidden field.
                if ( P._hidden ) {
                    P._hidden.parentNode.removeChild( P._hidden )
                }

                // Remove the root.
                P.$root.remove()

                // Remove the input class, remove the stored data, and unbind
                // the events (after a tick for IE - see `P.close`).
                $ELEMENT.removeClass( CLASSES.input ).removeData( NAME )
                setTimeout( function() {
                    $ELEMENT.off( '.' + STATE.id )
                }, 0)

                // Restore the element state
                ELEMENT.type = STATE.type
                ELEMENT.readOnly = false

                // Trigger the queued “stop” events.
                P.trigger( 'stop' )

                // Reset the picker states.
                STATE.methods = {}
                STATE.start = false

                return P
            }, //stop


            /**
             * Open up the picker
             */
            open: function( dontGiveFocus ) {

                // If it’s already open, do nothing.
                if ( STATE.open ) return P

                // Add the “active” class.
                $ELEMENT.addClass( CLASSES.active )
                aria( ELEMENT, 'expanded', true )

                // * A Firefox bug, when `html` has `overflow:hidden`, results in
                //   killing transitions :(. So add the “opened” state on the next tick.
                //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                setTimeout( function() {

                    // Add the “opened” class to the picker root.
                    P.$root.addClass( CLASSES.opened )
                    aria( P.$root[0], 'hidden', false )

                }, 0 )

                // If we have to give focus, bind the element and doc events.
                if ( dontGiveFocus !== false ) {

                    // Set it as open.
                    STATE.open = true

                    // Prevent the page from scrolling.
                    if ( IS_DEFAULT_THEME ) {
                        $html.
                            css( 'overflow', 'hidden' ).
                            css( 'padding-right', '+=' + getScrollbarWidth() )
                    }

                    // Pass focus to the root element’s jQuery object.
                    focusPickerOnceOpened()

                    // Bind the document events.
                    $document.on( 'click.' + STATE.id + ' focusin.' + STATE.id, function( event ) {

                        var target = event.target

                        // If the target of the event is not the element, close the picker picker.
                        // * Don’t worry about clicks or focusins on the root because those don’t bubble up.
                        //   Also, for Firefox, a click on an `option` element bubbles up directly
                        //   to the doc. So make sure the target wasn't the doc.
                        // * In Firefox stopPropagation() doesn’t prevent right-click events from bubbling,
                        //   which causes the picker to unexpectedly close when right-clicking it. So make
                        //   sure the event wasn’t a right-click.
                        if ( target != ELEMENT && target != document && event.which != 3 ) {

                            // If the target was the holder that covers the screen,
                            // keep the element focused to maintain tabindex.
                            P.close( target === P.$holder[0] )
                        }

                    }).on( 'keydown.' + STATE.id, function( event ) {

                        var
                            // Get the keycode.
                            keycode = event.keyCode,

                            // Translate that to a selection change.
                            keycodeToMove = P.component.key[ keycode ],

                            // Grab the target.
                            target = event.target


                        // On escape, close the picker and give focus.
                        if ( keycode == 27 ) {
                            P.close( true )
                        }


                        // Check if there is a key movement or “enter” keypress on the element.
                        else if ( target == P.$holder[0] && ( keycodeToMove || keycode == 13 ) ) {

                            // Prevent the default action to stop page movement.
                            event.preventDefault()

                            // Trigger the key movement action.
                            if ( keycodeToMove ) {
                                PickerConstructor._.trigger( P.component.key.go, P, [ PickerConstructor._.trigger( keycodeToMove ) ] )
                            }

                            // On “enter”, if the highlighted item isn’t disabled, set the value and close.
                            else if ( !P.$root.find( '.' + CLASSES.highlighted ).hasClass( CLASSES.disabled ) ) {
                                P.set( 'select', P.component.item.highlight )
                                if ( SETTINGS.closeOnSelect ) {
                                    P.close( true )
                                }
                            }
                        }


                        // If the target is within the root and “enter” is pressed,
                        // prevent the default action and trigger a click on the target instead.
                        else if ( $.contains( P.$root[0], target ) && keycode == 13 ) {
                            event.preventDefault()
                            target.click()
                        }
                    })
                }

                // Trigger the queued “open” events.
                return P.trigger( 'open' )
            }, //open


            /**
             * Close the picker
             */
            close: function( giveFocus ) {

                // If we need to give focus, do it before changing states.
                if ( giveFocus ) {
                    if ( SETTINGS.editable ) {
                        ELEMENT.focus()
                    }
                    else {
                        // ....ah yes! It would’ve been incomplete without a crazy workaround for IE :|
                        // The focus is triggered *after* the close has completed - causing it
                        // to open again. So unbind and rebind the event at the next tick.
                        P.$holder.off( 'focus.toOpen' ).focus()
                        setTimeout( function() {
                            P.$holder.on( 'focus.toOpen', handleFocusToOpenEvent )
                        }, 0 )
                    }
                }

                // Remove the “active” class.
                $ELEMENT.removeClass( CLASSES.active )
                aria( ELEMENT, 'expanded', false )

                // * A Firefox bug, when `html` has `overflow:hidden`, results in
                //   killing transitions :(. So remove the “opened” state on the next tick.
                //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                setTimeout( function() {

                    // Remove the “opened” and “focused” class from the picker root.
                    P.$root.removeClass( CLASSES.opened + ' ' + CLASSES.focused )
                    aria( P.$root[0], 'hidden', true )

                }, 0 )

                // If it’s already closed, do nothing more.
                if ( !STATE.open ) return P

                // Set it as closed.
                STATE.open = false

                // Allow the page to scroll.
                if ( IS_DEFAULT_THEME ) {
                    $html.
                        css( 'overflow', '' ).
                        css( 'padding-right', '-=' + getScrollbarWidth() )
                }

                // Unbind the document events.
                $document.off( '.' + STATE.id )

                // Trigger the queued “close” events.
                return P.trigger( 'close' )
            }, //close


            /**
             * Clear the values
             */
            clear: function( options ) {
                return P.set( 'clear', null, options )
            }, //clear


            /**
             * Set something
             */
            set: function( thing, value, options ) {

                var thingItem, thingValue,
                    thingIsObject = $.isPlainObject( thing ),
                    thingObject = thingIsObject ? thing : {}

                // Make sure we have usable options.
                options = thingIsObject && $.isPlainObject( value ) ? value : options || {}

                if ( thing ) {

                    // If the thing isn’t an object, make it one.
                    if ( !thingIsObject ) {
                        thingObject[ thing ] = value
                    }

                    // Go through the things of items to set.
                    for ( thingItem in thingObject ) {

                        // Grab the value of the thing.
                        thingValue = thingObject[ thingItem ]

                        // First, if the item exists and there’s a value, set it.
                        if ( thingItem in P.component.item ) {
                            if ( thingValue === undefined ) thingValue = null
                            P.component.set( thingItem, thingValue, options )
                        }

                        // Then, check to update the element value and broadcast a change.
                        if ( thingItem == 'select' || thingItem == 'clear' ) {
                            $ELEMENT.
                                val( thingItem == 'clear' ? '' : P.get( thingItem, SETTINGS.format ) ).
                                trigger( 'change' )
                        }
                    }

                    // Render a new picker.
                    P.render()
                }

                // When the method isn’t muted, trigger queued “set” events and pass the `thingObject`.
                return options.muted ? P : P.trigger( 'set', thingObject )
            }, //set


            /**
             * Get something
             */
            get: function( thing, format ) {

                // Make sure there’s something to get.
                thing = thing || 'value'

                // If a picker state exists, return that.
                if ( STATE[ thing ] != null ) {
                    return STATE[ thing ]
                }

                // Return the submission value, if that.
                if ( thing == 'valueSubmit' ) {
                    if ( P._hidden ) {
                        return P._hidden.value
                    }
                    thing = 'value'
                }

                // Return the value, if that.
                if ( thing == 'value' ) {
                    return ELEMENT.value
                }

                // Check if a component item exists, return that.
                if ( thing in P.component.item ) {
                    if ( typeof format == 'string' ) {
                        var thingValue = P.component.get( thing )
                        return thingValue ?
                            PickerConstructor._.trigger(
                                P.component.formats.toString,
                                P.component,
                                [ format, thingValue ]
                            ) : ''
                    }
                    return P.component.get( thing )
                }
            }, //get



            /**
             * Bind events on the things.
             */
            on: function( thing, method, internal ) {

                var thingName, thingMethod,
                    thingIsObject = $.isPlainObject( thing ),
                    thingObject = thingIsObject ? thing : {}

                if ( thing ) {

                    // If the thing isn’t an object, make it one.
                    if ( !thingIsObject ) {
                        thingObject[ thing ] = method
                    }

                    // Go through the things to bind to.
                    for ( thingName in thingObject ) {

                        // Grab the method of the thing.
                        thingMethod = thingObject[ thingName ]

                        // If it was an internal binding, prefix it.
                        if ( internal ) {
                            thingName = '_' + thingName
                        }

                        // Make sure the thing methods collection exists.
                        STATE.methods[ thingName ] = STATE.methods[ thingName ] || []

                        // Add the method to the relative method collection.
                        STATE.methods[ thingName ].push( thingMethod )
                    }
                }

                return P
            }, //on



            /**
             * Unbind events on the things.
             */
            off: function() {
                var i, thingName,
                    names = arguments;
                for ( i = 0, namesCount = names.length; i < namesCount; i += 1 ) {
                    thingName = names[i]
                    if ( thingName in STATE.methods ) {
                        delete STATE.methods[thingName]
                    }
                }
                return P
            },


            /**
             * Fire off method events.
             */
            trigger: function( name, data ) {
                var _trigger = function( name ) {
                    var methodList = STATE.methods[ name ]
                    if ( methodList ) {
                        methodList.map( function( method ) {
                            PickerConstructor._.trigger( method, P, [ data ] )
                        })
                    }
                }
                _trigger( '_' + name )
                _trigger( name )
                return P
            } //trigger
        } //PickerInstance.prototype


    /**
     * Wrap the picker holder components together.
     */
    function createWrappedComponent() {

        // Create a picker wrapper holder
        return PickerConstructor._.node( 'div',

            // Create a picker wrapper node
            PickerConstructor._.node( 'div',

                // Create a picker frame
                PickerConstructor._.node( 'div',

                    // Create a picker box node
                    PickerConstructor._.node( 'div',

                        // Create the components nodes.
                        P.component.nodes( STATE.open ),

                        // The picker box class
                        CLASSES.box
                    ),

                    // Picker wrap class
                    CLASSES.wrap
                ),

                // Picker frame class
                CLASSES.frame
            ),

            // Picker holder class
            CLASSES.holder,

            'tabindex="-1"'
        ) //endreturn
    } //createWrappedComponent



    /**
     * Prepare the input element with all bindings.
     */
    function prepareElement() {

        $ELEMENT.

            // Store the picker data by component name.
            data(NAME, P).

            // Add the “input” class name.
            addClass(CLASSES.input).

            // If there’s a `data-value`, update the value of the element.
            val( $ELEMENT.data('value') ?
                P.get('select', SETTINGS.format) :
                ELEMENT.value
            )


        // Only bind keydown events if the element isn’t editable.
        if ( !SETTINGS.editable ) {

            $ELEMENT.

                // On focus/click, open the picker.
                on( 'focus.' + STATE.id + ' click.' + STATE.id, function(event) {
                    event.preventDefault()
                    P.open()
                }).

                // Handle keyboard event based on the picker being opened or not.
                on( 'keydown.' + STATE.id, handleKeydownEvent )
        }


        // Update the aria attributes.
        aria(ELEMENT, {
            haspopup: true,
            expanded: false,
            readonly: false,
            owns: ELEMENT.id + '_root'
        })
    }


    /**
     * Prepare the root picker element with all bindings.
     */
    function prepareElementRoot() {
        aria( P.$root[0], 'hidden', true )
    }


     /**
      * Prepare the holder picker element with all bindings.
      */
    function prepareElementHolder() {

        P.$holder.

            on({

                // For iOS8.
                keydown: handleKeydownEvent,

                'focus.toOpen': handleFocusToOpenEvent,

                blur: function() {
                    // Remove the “target” class.
                    $ELEMENT.removeClass( CLASSES.target )
                },

                // When something within the holder is focused, stop from bubbling
                // to the doc and remove the “focused” state from the root.
                focusin: function( event ) {
                    P.$root.removeClass( CLASSES.focused )
                    event.stopPropagation()
                },

                // When something within the holder is clicked, stop it
                // from bubbling to the doc.
                'mousedown click': function( event ) {

                    var target = event.target

                    // Make sure the target isn’t the root holder so it can bubble up.
                    if ( target != P.$holder[0] ) {

                        event.stopPropagation()

                        // * For mousedown events, cancel the default action in order to
                        //   prevent cases where focus is shifted onto external elements
                        //   when using things like jQuery mobile or MagnificPopup (ref: #249 & #120).
                        //   Also, for Firefox, don’t prevent action on the `option` element.
                        if ( event.type == 'mousedown' && !$( target ).is( 'input, select, textarea, button, option' )) {

                            event.preventDefault()

                            // Re-focus onto the holder so that users can click away
                            // from elements focused within the picker.
                            P.$holder[0].focus()
                        }
                    }
                }

            }).

            // If there’s a click on an actionable element, carry out the actions.
            on( 'click', '[data-pick], [data-nav], [data-clear], [data-close]', function() {

                var $target = $( this ),
                    targetData = $target.data(),
                    targetDisabled = $target.hasClass( CLASSES.navDisabled ) || $target.hasClass( CLASSES.disabled ),

                    // * For IE, non-focusable elements can be active elements as well
                    //   (http://stackoverflow.com/a/2684561).
                    activeElement = getActiveElement()
                    activeElement = activeElement && ( activeElement.type || activeElement.href )

                // If it’s disabled or nothing inside is actively focused, re-focus the element.
                if ( targetDisabled || activeElement && !$.contains( P.$root[0], activeElement ) ) {
                    P.$holder[0].focus()
                }

                // If something is superficially changed, update the `highlight` based on the `nav`.
                if ( !targetDisabled && targetData.nav ) {
                    P.set( 'highlight', P.component.item.highlight, { nav: targetData.nav } )
                }

                // If something is picked, set `select` then close with focus.
                else if ( !targetDisabled && 'pick' in targetData ) {
                    P.set( 'select', targetData.pick )
                    if ( SETTINGS.closeOnSelect ) {
                        P.close( true )
                    }
                }

                // If a “clear” button is pressed, empty the values and close with focus.
                else if ( targetData.clear ) {
                    P.clear()
                    if ( SETTINGS.closeOnClear ) {
                        P.close( true )
                    }
                }

                else if ( targetData.close ) {
                    P.close( true )
                }

            }) //P.$holder

    }


     /**
      * Prepare the hidden input element along with all bindings.
      */
    function prepareElementHidden() {

        var name

        if ( SETTINGS.hiddenName === true ) {
            name = ELEMENT.name
            ELEMENT.name = ''
        }
        else {
            name = [
                typeof SETTINGS.hiddenPrefix == 'string' ? SETTINGS.hiddenPrefix : '',
                typeof SETTINGS.hiddenSuffix == 'string' ? SETTINGS.hiddenSuffix : '_submit'
            ]
            name = name[0] + ELEMENT.name + name[1]
        }

        P._hidden = $(
            '<input ' +
            'type=hidden ' +

            // Create the name using the original input’s with a prefix and suffix.
            'name="' + name + '"' +

            // If the element has a value, set the hidden value as well.
            (
                $ELEMENT.data('value') || ELEMENT.value ?
                    ' value="' + P.get('select', SETTINGS.formatSubmit) + '"' :
                    ''
            ) +
            '>'
        )[0]

        $ELEMENT.

            // If the value changes, update the hidden input with the correct format.
            on('change.' + STATE.id, function() {
                P._hidden.value = ELEMENT.value ?
                    P.get('select', SETTINGS.formatSubmit) :
                    ''
            })
    }


    // Wait for transitions to end before focusing the holder. Otherwise, while
    // using the `container` option, the view jumps to the container.
    function focusPickerOnceOpened() {

        if (IS_DEFAULT_THEME && supportsTransitions) {
            P.$holder.find('.' + CLASSES.frame).one('transitionend', function() {
                P.$holder[0].focus()
            })
        }
        else {
            P.$holder[0].focus()
        }
    }


    function handleFocusToOpenEvent(event) {

        // Stop the event from propagating to the doc.
        event.stopPropagation()

        // Add the “target” class.
        $ELEMENT.addClass( CLASSES.target )

        // Add the “focused” class to the root.
        P.$root.addClass( CLASSES.focused )

        // And then finally open the picker.
        P.open()
    }


    // For iOS8.
    function handleKeydownEvent( event ) {

        var keycode = event.keyCode,

            // Check if one of the delete keys was pressed.
            isKeycodeDelete = /^(8|46)$/.test(keycode)

        // For some reason IE clears the input value on “escape”.
        if ( keycode == 27 ) {
            P.close( true )
            return false
        }

        // Check if `space` or `delete` was pressed or the picker is closed with a key movement.
        if ( keycode == 32 || isKeycodeDelete || !STATE.open && P.component.key[keycode] ) {

            // Prevent it from moving the page and bubbling to doc.
            event.preventDefault()
            event.stopPropagation()

            // If `delete` was pressed, clear the values and close the picker.
            // Otherwise open the picker.
            if ( isKeycodeDelete ) { P.clear().close() }
            else { P.open() }
        }
    }


    // Return a new picker instance.
    return new PickerInstance()
} //PickerConstructor



/**
 * The default classes and prefix to use for the HTML classes.
 */
PickerConstructor.klasses = function( prefix ) {
    prefix = prefix || 'picker'
    return {

        picker: prefix,
        opened: prefix + '--opened',
        focused: prefix + '--focused',

        input: prefix + '__input',
        active: prefix + '__input--active',
        target: prefix + '__input--target',

        holder: prefix + '__holder',

        frame: prefix + '__frame',
        wrap: prefix + '__wrap',

        box: prefix + '__box'
    }
} //PickerConstructor.klasses



/**
 * Check if the default theme is being used.
 */
function isUsingDefaultTheme( element ) {

    var theme,
        prop = 'position'

    // For IE.
    if ( element.currentStyle ) {
        theme = element.currentStyle[prop]
    }

    // For normal browsers.
    else if ( window.getComputedStyle ) {
        theme = getComputedStyle( element )[prop]
    }

    return theme == 'fixed'
}



/**
 * Get the width of the browser’s scrollbar.
 * Taken from: https://github.com/VodkaBears/Remodal/blob/master/src/jquery.remodal.js
 */
function getScrollbarWidth() {

    if ( $html.height() <= $window.height() ) {
        return 0
    }

    var $outer = $( '<div style="visibility:hidden;width:100px" />' ).
        appendTo( 'body' )

    // Get the width without scrollbars.
    var widthWithoutScroll = $outer[0].offsetWidth

    // Force adding scrollbars.
    $outer.css( 'overflow', 'scroll' )

    // Add the inner div.
    var $inner = $( '<div style="width:100%" />' ).appendTo( $outer )

    // Get the width with scrollbars.
    var widthWithScroll = $inner[0].offsetWidth

    // Remove the divs.
    $outer.remove()

    // Return the difference between the widths.
    return widthWithoutScroll - widthWithScroll
}



/**
 * PickerConstructor helper methods.
 */
PickerConstructor._ = {

    /**
     * Create a group of nodes. Expects:
     * `
        {
            min:    {Integer},
            max:    {Integer},
            i:      {Integer},
            node:   {String},
            item:   {Function}
        }
     * `
     */
    group: function( groupObject ) {

        var
            // Scope for the looped object
            loopObjectScope,

            // Create the nodes list
            nodesList = '',

            // The counter starts from the `min`
            counter = PickerConstructor._.trigger( groupObject.min, groupObject )


        // Loop from the `min` to `max`, incrementing by `i`
        for ( ; counter <= PickerConstructor._.trigger( groupObject.max, groupObject, [ counter ] ); counter += groupObject.i ) {

            // Trigger the `item` function within scope of the object
            loopObjectScope = PickerConstructor._.trigger( groupObject.item, groupObject, [ counter ] )

            // Splice the subgroup and create nodes out of the sub nodes
            nodesList += PickerConstructor._.node(
                groupObject.node,
                loopObjectScope[ 0 ],   // the node
                loopObjectScope[ 1 ],   // the classes
                loopObjectScope[ 2 ]    // the attributes
            )
        }

        // Return the list of nodes
        return nodesList
    }, //group


    /**
     * Create a dom node string
     */
    node: function( wrapper, item, klass, attribute ) {

        // If the item is false-y, just return an empty string
        if ( !item ) return ''

        // If the item is an array, do a join
        item = $.isArray( item ) ? item.join( '' ) : item

        // Check for the class
        klass = klass ? ' class="' + klass + '"' : ''

        // Check for any attributes
        attribute = attribute ? ' ' + attribute : ''

        // Return the wrapped item
        return '<' + wrapper + klass + attribute + '>' + item + '</' + wrapper + '>'
    }, //node


    /**
     * Lead numbers below 10 with a zero.
     */
    lead: function( number ) {
        return ( number < 10 ? '0': '' ) + number
    },


    /**
     * Trigger a function otherwise return the value.
     */
    trigger: function( callback, scope, args ) {
        return typeof callback == 'function' ? callback.apply( scope, args || [] ) : callback
    },


    /**
     * If the second character is a digit, length is 2 otherwise 1.
     */
    digits: function( string ) {
        return ( /\d/ ).test( string[ 1 ] ) ? 2 : 1
    },


    /**
     * Tell if something is a date object.
     */
    isDate: function( value ) {
        return {}.toString.call( value ).indexOf( 'Date' ) > -1 && this.isInteger( value.getDate() )
    },


    /**
     * Tell if something is an integer.
     */
    isInteger: function( value ) {
        return {}.toString.call( value ).indexOf( 'Number' ) > -1 && value % 1 === 0
    },


    /**
     * Create ARIA attribute strings.
     */
    ariaAttr: ariaAttr
} //PickerConstructor._



/**
 * Extend the picker with a component and defaults.
 */
PickerConstructor.extend = function( name, Component ) {

    // Extend jQuery.
    $.fn[ name ] = function( options, action ) {

        // Grab the component data.
        var componentData = this.data( name )

        // If the picker is requested, return the data object.
        if ( options == 'picker' ) {
            return componentData
        }

        // If the component data exists and `options` is a string, carry out the action.
        if ( componentData && typeof options == 'string' ) {
            return PickerConstructor._.trigger( componentData[ options ], componentData, [ action ] )
        }

        // Otherwise go through each matched element and if the component
        // doesn’t exist, create a new picker using `this` element
        // and merging the defaults and options with a deep copy.
        return this.each( function() {
            var $this = $( this )
            if ( !$this.data( name ) ) {
                new PickerConstructor( this, name, Component, options )
            }
        })
    }

    // Set the defaults.
    $.fn[ name ].defaults = Component.defaults
} //PickerConstructor.extend



function aria(element, attribute, value) {
    if ( $.isPlainObject(attribute) ) {
        for ( var key in attribute ) {
            ariaSet(element, key, attribute[key])
        }
    }
    else {
        ariaSet(element, attribute, value)
    }
}
function ariaSet(element, attribute, value) {
    element.setAttribute(
        (attribute == 'role' ? '' : 'aria-') + attribute,
        value
    )
}
function ariaAttr(attribute, data) {
    if ( !$.isPlainObject(attribute) ) {
        attribute = { attribute: data }
    }
    data = ''
    for ( var key in attribute ) {
        var attr = (key == 'role' ? '' : 'aria-') + key,
            attrVal = attribute[key]
        data += attrVal == null ? '' : attr + '="' + attribute[key] + '"'
    }
    return data
}

// IE8 bug throws an error for activeElements within iframes.
function getActiveElement() {
    try {
        return document.activeElement
    } catch ( err ) { }
}



// Expose the picker constructor.
return PickerConstructor


}));



/*!
 * Date picker for pickadate.js v3.5.6
 * http://amsul.github.io/pickadate.js/date.htm
 */

(function ( factory ) {

    // AMD.
    if ( typeof define == 'function' && define.amd )
        define( ['picker', 'jquery'], factory )

    // Node.js/browserify.
    else if ( typeof exports == 'object' )
        module.exports = factory( require('./picker.js'), require('jquery') )

    // Browser globals.
    else factory( Picker, jQuery )

}(function( Picker, $ ) {


/**
 * Globals and constants
 */
var DAYS_IN_WEEK = 7,
    WEEKS_IN_CALENDAR = 6,
    _ = Picker._



/**
 * The date picker constructor
 */
function DatePicker( picker, settings ) {

    var calendar = this,
        element = picker.$node[ 0 ],
        elementValue = element.value,
        elementDataValue = picker.$node.data( 'value' ),
        valueString = elementDataValue || elementValue,
        formatString = elementDataValue ? settings.formatSubmit : settings.format,
        isRTL = function() {

            return element.currentStyle ?

                // For IE.
                element.currentStyle.direction == 'rtl' :

                // For normal browsers.
                getComputedStyle( picker.$root[0] ).direction == 'rtl'
        }

    calendar.settings = settings
    calendar.$node = picker.$node

    // The queue of methods that will be used to build item objects.
    calendar.queue = {
        min: 'measure create',
        max: 'measure create',
        now: 'now create',
        select: 'parse create validate',
        highlight: 'parse navigate create validate',
        view: 'parse create validate viewset',
        disable: 'deactivate',
        enable: 'activate'
    }

    // The component's item object.
    calendar.item = {}

    calendar.item.clear = null
    calendar.item.disable = ( settings.disable || [] ).slice( 0 )
    calendar.item.enable = -(function( collectionDisabled ) {
        return collectionDisabled[ 0 ] === true ? collectionDisabled.shift() : -1
    })( calendar.item.disable )

    calendar.
        set( 'min', settings.min ).
        set( 'max', settings.max ).
        set( 'now' )

    // When there’s a value, set the `select`, which in turn
    // also sets the `highlight` and `view`.
    if ( valueString ) {
        calendar.set( 'select', valueString, {
            format: formatString,
            defaultValue: true
        })
    }

    // If there’s no value, default to highlighting “today”.
    else {
        calendar.
            set( 'select', null ).
            set( 'highlight', calendar.item.now )
    }


    // The keycode to movement mapping.
    calendar.key = {
        40: 7, // Down
        38: -7, // Up
        39: function() { return isRTL() ? -1 : 1 }, // Right
        37: function() { return isRTL() ? 1 : -1 }, // Left
        go: function( timeChange ) {
            var highlightedObject = calendar.item.highlight,
                targetDate = new Date( highlightedObject.year, highlightedObject.month, highlightedObject.date + timeChange )
            calendar.set(
                'highlight',
                targetDate,
                { interval: timeChange }
            )
            this.render()
        }
    }


    // Bind some picker events.
    picker.
        on( 'render', function() {
            picker.$root.find( '.' + settings.klass.selectMonth ).on( 'change', function() {
                var value = this.value
                if ( value ) {
                    picker.set( 'highlight', [ picker.get( 'view' ).year, value, picker.get( 'highlight' ).date ] )
                    picker.$root.find( '.' + settings.klass.selectMonth ).trigger( 'focus' )
                }
            })
            picker.$root.find( '.' + settings.klass.selectYear ).on( 'change', function() {
                var value = this.value
                if ( value ) {
                    picker.set( 'highlight', [ value, picker.get( 'view' ).month, picker.get( 'highlight' ).date ] )
                    picker.$root.find( '.' + settings.klass.selectYear ).trigger( 'focus' )
                }
            })
        }, 1 ).
        on( 'open', function() {
            var includeToday = ''
            if ( calendar.disabled( calendar.get('now') ) ) {
                includeToday = ':not(.' + settings.klass.buttonToday + ')'
            }
            picker.$root.find( 'button' + includeToday + ', select' ).attr( 'disabled', false )
        }, 1 ).
        on( 'close', function() {
            picker.$root.find( 'button, select' ).attr( 'disabled', true )
        }, 1 )

} //DatePicker


/**
 * Set a datepicker item object.
 */
DatePicker.prototype.set = function( type, value, options ) {

    var calendar = this,
        calendarItem = calendar.item

    // If the value is `null` just set it immediately.
    if ( value === null ) {
        if ( type == 'clear' ) type = 'select'
        calendarItem[ type ] = value
        return calendar
    }

    // Otherwise go through the queue of methods, and invoke the functions.
    // Update this as the time unit, and set the final value as this item.
    // * In the case of `enable`, keep the queue but set `disable` instead.
    //   And in the case of `flip`, keep the queue but set `enable` instead.
    calendarItem[ ( type == 'enable' ? 'disable' : type == 'flip' ? 'enable' : type ) ] = calendar.queue[ type ].split( ' ' ).map( function( method ) {
        value = calendar[ method ]( type, value, options )
        return value
    }).pop()

    // Check if we need to cascade through more updates.
    if ( type == 'select' ) {
        calendar.set( 'highlight', calendarItem.select, options )
    }
    else if ( type == 'highlight' ) {
        calendar.set( 'view', calendarItem.highlight, options )
    }
    else if ( type.match( /^(flip|min|max|disable|enable)$/ ) ) {
        if ( calendarItem.select && calendar.disabled( calendarItem.select ) ) {
            calendar.set( 'select', calendarItem.select, options )
        }
        if ( calendarItem.highlight && calendar.disabled( calendarItem.highlight ) ) {
            calendar.set( 'highlight', calendarItem.highlight, options )
        }
    }

    return calendar
} //DatePicker.prototype.set


/**
 * Get a datepicker item object.
 */
DatePicker.prototype.get = function( type ) {
    return this.item[ type ]
} //DatePicker.prototype.get


/**
 * Create a picker date object.
 */
DatePicker.prototype.create = function( type, value, options ) {

    var isInfiniteValue,
        calendar = this

    // If there’s no value, use the type as the value.
    value = value === undefined ? type : value


    // If it’s infinity, update the value.
    if ( value == -Infinity || value == Infinity ) {
        isInfiniteValue = value
    }

    // If it’s an object, use the native date object.
    else if ( $.isPlainObject( value ) && _.isInteger( value.pick ) ) {
        value = value.obj
    }

    // If it’s an array, convert it into a date and make sure
    // that it’s a valid date – otherwise default to today.
    else if ( $.isArray( value ) ) {
        value = new Date( value[ 0 ], value[ 1 ], value[ 2 ] )
        value = _.isDate( value ) ? value : calendar.create().obj
    }

    // If it’s a number or date object, make a normalized date.
    else if ( _.isInteger( value ) || _.isDate( value ) ) {
        value = calendar.normalize( new Date( value ), options )
    }

    // If it’s a literal true or any other case, set it to now.
    else /*if ( value === true )*/ {
        value = calendar.now( type, value, options )
    }

    // Return the compiled object.
    return {
        year: isInfiniteValue || value.getFullYear(),
        month: isInfiniteValue || value.getMonth(),
        date: isInfiniteValue || value.getDate(),
        day: isInfiniteValue || value.getDay(),
        obj: isInfiniteValue || value,
        pick: isInfiniteValue || value.getTime()
    }
} //DatePicker.prototype.create


/**
 * Create a range limit object using an array, date object,
 * literal “true”, or integer relative to another time.
 */
DatePicker.prototype.createRange = function( from, to ) {

    var calendar = this,
        createDate = function( date ) {
            if ( date === true || $.isArray( date ) || _.isDate( date ) ) {
                return calendar.create( date )
            }
            return date
        }

    // Create objects if possible.
    if ( !_.isInteger( from ) ) {
        from = createDate( from )
    }
    if ( !_.isInteger( to ) ) {
        to = createDate( to )
    }

    // Create relative dates.
    if ( _.isInteger( from ) && $.isPlainObject( to ) ) {
        from = [ to.year, to.month, to.date + from ];
    }
    else if ( _.isInteger( to ) && $.isPlainObject( from ) ) {
        to = [ from.year, from.month, from.date + to ];
    }

    return {
        from: createDate( from ),
        to: createDate( to )
    }
} //DatePicker.prototype.createRange


/**
 * Check if a date unit falls within a date range object.
 */
DatePicker.prototype.withinRange = function( range, dateUnit ) {
    range = this.createRange(range.from, range.to)
    return dateUnit.pick >= range.from.pick && dateUnit.pick <= range.to.pick
}


/**
 * Check if two date range objects overlap.
 */
DatePicker.prototype.overlapRanges = function( one, two ) {

    var calendar = this

    // Convert the ranges into comparable dates.
    one = calendar.createRange( one.from, one.to )
    two = calendar.createRange( two.from, two.to )

    return calendar.withinRange( one, two.from ) || calendar.withinRange( one, two.to ) ||
        calendar.withinRange( two, one.from ) || calendar.withinRange( two, one.to )
}


/**
 * Get the date today.
 */
DatePicker.prototype.now = function( type, value, options ) {
    value = new Date()
    if ( options && options.rel ) {
        value.setDate( value.getDate() + options.rel )
    }
    return this.normalize( value, options )
}


/**
 * Navigate to next/prev month.
 */
DatePicker.prototype.navigate = function( type, value, options ) {

    var targetDateObject,
        targetYear,
        targetMonth,
        targetDate,
        isTargetArray = $.isArray( value ),
        isTargetObject = $.isPlainObject( value ),
        viewsetObject = this.item.view/*,
        safety = 100*/


    if ( isTargetArray || isTargetObject ) {

        if ( isTargetObject ) {
            targetYear = value.year
            targetMonth = value.month
            targetDate = value.date
        }
        else {
            targetYear = +value[0]
            targetMonth = +value[1]
            targetDate = +value[2]
        }

        // If we’re navigating months but the view is in a different
        // month, navigate to the view’s year and month.
        if ( options && options.nav && viewsetObject && viewsetObject.month !== targetMonth ) {
            targetYear = viewsetObject.year
            targetMonth = viewsetObject.month
        }

        // Figure out the expected target year and month.
        targetDateObject = new Date( targetYear, targetMonth + ( options && options.nav ? options.nav : 0 ), 1 )
        targetYear = targetDateObject.getFullYear()
        targetMonth = targetDateObject.getMonth()

        // If the month we’re going to doesn’t have enough days,
        // keep decreasing the date until we reach the month’s last date.
        while ( /*safety &&*/ new Date( targetYear, targetMonth, targetDate ).getMonth() !== targetMonth ) {
            targetDate -= 1
            /*safety -= 1
            if ( !safety ) {
                throw 'Fell into an infinite loop while navigating to ' + new Date( targetYear, targetMonth, targetDate ) + '.'
            }*/
        }

        value = [ targetYear, targetMonth, targetDate ]
    }

    return value
} //DatePicker.prototype.navigate


/**
 * Normalize a date by setting the hours to midnight.
 */
DatePicker.prototype.normalize = function( value/*, options*/ ) {
    value.setHours( 0, 0, 0, 0 )
    return value
}


/**
 * Measure the range of dates.
 */
DatePicker.prototype.measure = function( type, value/*, options*/ ) {

    var calendar = this

    // If it’s anything false-y, remove the limits.
    if ( !value ) {
        value = type == 'min' ? -Infinity : Infinity
    }

    // If it’s a string, parse it.
    else if ( typeof value == 'string' ) {
        value = calendar.parse( type, value )
    }

    // If it's an integer, get a date relative to today.
    else if ( _.isInteger( value ) ) {
        value = calendar.now( type, value, { rel: value } )
    }

    return value
} ///DatePicker.prototype.measure


/**
 * Create a viewset object based on navigation.
 */
DatePicker.prototype.viewset = function( type, dateObject/*, options*/ ) {
    return this.create([ dateObject.year, dateObject.month, 1 ])
}


/**
 * Validate a date as enabled and shift if needed.
 */
DatePicker.prototype.validate = function( type, dateObject, options ) {

    var calendar = this,

        // Keep a reference to the original date.
        originalDateObject = dateObject,

        // Make sure we have an interval.
        interval = options && options.interval ? options.interval : 1,

        // Check if the calendar enabled dates are inverted.
        isFlippedBase = calendar.item.enable === -1,

        // Check if we have any enabled dates after/before now.
        hasEnabledBeforeTarget, hasEnabledAfterTarget,

        // The min & max limits.
        minLimitObject = calendar.item.min,
        maxLimitObject = calendar.item.max,

        // Check if we’ve reached the limit during shifting.
        reachedMin, reachedMax,

        // Check if the calendar is inverted and at least one weekday is enabled.
        hasEnabledWeekdays = isFlippedBase && calendar.item.disable.filter( function( value ) {

            // If there’s a date, check where it is relative to the target.
            if ( $.isArray( value ) ) {
                var dateTime = calendar.create( value ).pick
                if ( dateTime < dateObject.pick ) hasEnabledBeforeTarget = true
                else if ( dateTime > dateObject.pick ) hasEnabledAfterTarget = true
            }

            // Return only integers for enabled weekdays.
            return _.isInteger( value )
        }).length/*,

        safety = 100*/



    // Cases to validate for:
    // [1] Not inverted and date disabled.
    // [2] Inverted and some dates enabled.
    // [3] Not inverted and out of range.
    //
    // Cases to **not** validate for:
    // • Navigating months.
    // • Not inverted and date enabled.
    // • Inverted and all dates disabled.
    // • ..and anything else.
    if ( !options || (!options.nav && !options.defaultValue) ) if (
        /* 1 */ ( !isFlippedBase && calendar.disabled( dateObject ) ) ||
        /* 2 */ ( isFlippedBase && calendar.disabled( dateObject ) && ( hasEnabledWeekdays || hasEnabledBeforeTarget || hasEnabledAfterTarget ) ) ||
        /* 3 */ ( !isFlippedBase && (dateObject.pick <= minLimitObject.pick || dateObject.pick >= maxLimitObject.pick) )
    ) {


        // When inverted, flip the direction if there aren’t any enabled weekdays
        // and there are no enabled dates in the direction of the interval.
        if ( isFlippedBase && !hasEnabledWeekdays && ( ( !hasEnabledAfterTarget && interval > 0 ) || ( !hasEnabledBeforeTarget && interval < 0 ) ) ) {
            interval *= -1
        }


        // Keep looping until we reach an enabled date.
        while ( /*safety &&*/ calendar.disabled( dateObject ) ) {

            /*safety -= 1
            if ( !safety ) {
                throw 'Fell into an infinite loop while validating ' + dateObject.obj + '.'
            }*/


            // If we’ve looped into the next/prev month with a large interval, return to the original date and flatten the interval.
            if ( Math.abs( interval ) > 1 && ( dateObject.month < originalDateObject.month || dateObject.month > originalDateObject.month ) ) {
                dateObject = originalDateObject
                interval = interval > 0 ? 1 : -1
            }


            // If we’ve reached the min/max limit, reverse the direction, flatten the interval and set it to the limit.
            if ( dateObject.pick <= minLimitObject.pick ) {
                reachedMin = true
                interval = 1
                dateObject = calendar.create([
                    minLimitObject.year,
                    minLimitObject.month,
                    minLimitObject.date + (dateObject.pick === minLimitObject.pick ? 0 : -1)
                ])
            }
            else if ( dateObject.pick >= maxLimitObject.pick ) {
                reachedMax = true
                interval = -1
                dateObject = calendar.create([
                    maxLimitObject.year,
                    maxLimitObject.month,
                    maxLimitObject.date + (dateObject.pick === maxLimitObject.pick ? 0 : 1)
                ])
            }


            // If we’ve reached both limits, just break out of the loop.
            if ( reachedMin && reachedMax ) {
                break
            }


            // Finally, create the shifted date using the interval and keep looping.
            dateObject = calendar.create([ dateObject.year, dateObject.month, dateObject.date + interval ])
        }

    } //endif


    // Return the date object settled on.
    return dateObject
} //DatePicker.prototype.validate


/**
 * Check if a date is disabled.
 */
DatePicker.prototype.disabled = function( dateToVerify ) {

    var
        calendar = this,

        // Filter through the disabled dates to check if this is one.
        isDisabledMatch = calendar.item.disable.filter( function( dateToDisable ) {

            // If the date is a number, match the weekday with 0index and `firstDay` check.
            if ( _.isInteger( dateToDisable ) ) {
                return dateToVerify.day === ( calendar.settings.firstDay ? dateToDisable : dateToDisable - 1 ) % 7
            }

            // If it’s an array or a native JS date, create and match the exact date.
            if ( $.isArray( dateToDisable ) || _.isDate( dateToDisable ) ) {
                return dateToVerify.pick === calendar.create( dateToDisable ).pick
            }

            // If it’s an object, match a date within the “from” and “to” range.
            if ( $.isPlainObject( dateToDisable ) ) {
                return calendar.withinRange( dateToDisable, dateToVerify )
            }
        })

    // If this date matches a disabled date, confirm it’s not inverted.
    isDisabledMatch = isDisabledMatch.length && !isDisabledMatch.filter(function( dateToDisable ) {
        return $.isArray( dateToDisable ) && dateToDisable[3] == 'inverted' ||
            $.isPlainObject( dateToDisable ) && dateToDisable.inverted
    }).length

    // Check the calendar “enabled” flag and respectively flip the
    // disabled state. Then also check if it’s beyond the min/max limits.
    return calendar.item.enable === -1 ? !isDisabledMatch : isDisabledMatch ||
        dateToVerify.pick < calendar.item.min.pick ||
        dateToVerify.pick > calendar.item.max.pick

} //DatePicker.prototype.disabled


/**
 * Parse a string into a usable type.
 */
DatePicker.prototype.parse = function( type, value, options ) {

    var calendar = this,
        parsingObject = {}

    // If it’s already parsed, we’re good.
    if ( !value || typeof value != 'string' ) {
        return value
    }

    // We need a `.format` to parse the value with.
    if ( !( options && options.format ) ) {
        options = options || {}
        options.format = calendar.settings.format
    }

    // Convert the format into an array and then map through it.
    calendar.formats.toArray( options.format ).map( function( label ) {

        var
            // Grab the formatting label.
            formattingLabel = calendar.formats[ label ],

            // The format length is from the formatting label function or the
            // label length without the escaping exclamation (!) mark.
            formatLength = formattingLabel ? _.trigger( formattingLabel, calendar, [ value, parsingObject ] ) : label.replace( /^!/, '' ).length

        // If there's a format label, split the value up to the format length.
        // Then add it to the parsing object with appropriate label.
        if ( formattingLabel ) {
            parsingObject[ label ] = value.substr( 0, formatLength )
        }

        // Update the value as the substring from format length to end.
        value = value.substr( formatLength )
    })

    // Compensate for month 0index.
    return [
        parsingObject.yyyy || parsingObject.yy,
        +( parsingObject.mm || parsingObject.m ) - 1,
        parsingObject.dd || parsingObject.d
    ]
} //DatePicker.prototype.parse


/**
 * Various formats to display the object in.
 */
DatePicker.prototype.formats = (function() {

    // Return the length of the first word in a collection.
    function getWordLengthFromCollection( string, collection, dateObject ) {

        // Grab the first word from the string.
        // Regex pattern from http://stackoverflow.com/q/150033
        var word = string.match( /[^\x00-\x7F]+|\w+/ )[ 0 ]

        // If there's no month index, add it to the date object
        if ( !dateObject.mm && !dateObject.m ) {
            dateObject.m = collection.indexOf( word ) + 1
        }

        // Return the length of the word.
        return word.length
    }

    // Get the length of the first word in a string.
    function getFirstWordLength( string ) {
        return string.match( /\w+/ )[ 0 ].length
    }

    return {

        d: function( string, dateObject ) {

            // If there's string, then get the digits length.
            // Otherwise return the selected date.
            return string ? _.digits( string ) : dateObject.date
        },
        dd: function( string, dateObject ) {

            // If there's a string, then the length is always 2.
            // Otherwise return the selected date with a leading zero.
            return string ? 2 : _.lead( dateObject.date )
        },
        ddd: function( string, dateObject ) {

            // If there's a string, then get the length of the first word.
            // Otherwise return the short selected weekday.
            return string ? getFirstWordLength( string ) : this.settings.weekdaysShort[ dateObject.day ]
        },
        dddd: function( string, dateObject ) {

            // If there's a string, then get the length of the first word.
            // Otherwise return the full selected weekday.
            return string ? getFirstWordLength( string ) : this.settings.weekdaysFull[ dateObject.day ]
        },
        m: function( string, dateObject ) {

            // If there's a string, then get the length of the digits
            // Otherwise return the selected month with 0index compensation.
            return string ? _.digits( string ) : dateObject.month + 1
        },
        mm: function( string, dateObject ) {

            // If there's a string, then the length is always 2.
            // Otherwise return the selected month with 0index and leading zero.
            return string ? 2 : _.lead( dateObject.month + 1 )
        },
        mmm: function( string, dateObject ) {

            var collection = this.settings.monthsShort

            // If there's a string, get length of the relevant month from the short
            // months collection. Otherwise return the selected month from that collection.
            return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
        },
        mmmm: function( string, dateObject ) {

            var collection = this.settings.monthsFull

            // If there's a string, get length of the relevant month from the full
            // months collection. Otherwise return the selected month from that collection.
            return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
        },
        yy: function( string, dateObject ) {

            // If there's a string, then the length is always 2.
            // Otherwise return the selected year by slicing out the first 2 digits.
            return string ? 2 : ( '' + dateObject.year ).slice( 2 )
        },
        yyyy: function( string, dateObject ) {

            // If there's a string, then the length is always 4.
            // Otherwise return the selected year.
            return string ? 4 : dateObject.year
        },

        // Create an array by splitting the formatting string passed.
        toArray: function( formatString ) { return formatString.split( /(d{1,4}|m{1,4}|y{4}|yy|!.)/g ) },

        // Format an object into a string using the formatting options.
        toString: function ( formatString, itemObject ) {
            var calendar = this
            return calendar.formats.toArray( formatString ).map( function( label ) {
                return _.trigger( calendar.formats[ label ], calendar, [ 0, itemObject ] ) || label.replace( /^!/, '' )
            }).join( '' )
        }
    }
})() //DatePicker.prototype.formats




/**
 * Check if two date units are the exact.
 */
DatePicker.prototype.isDateExact = function( one, two ) {

    var calendar = this

    // When we’re working with weekdays, do a direct comparison.
    if (
        ( _.isInteger( one ) && _.isInteger( two ) ) ||
        ( typeof one == 'boolean' && typeof two == 'boolean' )
     ) {
        return one === two
    }

    // When we’re working with date representations, compare the “pick” value.
    if (
        ( _.isDate( one ) || $.isArray( one ) ) &&
        ( _.isDate( two ) || $.isArray( two ) )
    ) {
        return calendar.create( one ).pick === calendar.create( two ).pick
    }

    // When we’re working with range objects, compare the “from” and “to”.
    if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
        return calendar.isDateExact( one.from, two.from ) && calendar.isDateExact( one.to, two.to )
    }

    return false
}


/**
 * Check if two date units overlap.
 */
DatePicker.prototype.isDateOverlap = function( one, two ) {

    var calendar = this,
        firstDay = calendar.settings.firstDay ? 1 : 0

    // When we’re working with a weekday index, compare the days.
    if ( _.isInteger( one ) && ( _.isDate( two ) || $.isArray( two ) ) ) {
        one = one % 7 + firstDay
        return one === calendar.create( two ).day + 1
    }
    if ( _.isInteger( two ) && ( _.isDate( one ) || $.isArray( one ) ) ) {
        two = two % 7 + firstDay
        return two === calendar.create( one ).day + 1
    }

    // When we’re working with range objects, check if the ranges overlap.
    if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
        return calendar.overlapRanges( one, two )
    }

    return false
}


/**
 * Flip the “enabled” state.
 */
DatePicker.prototype.flipEnable = function(val) {
    var itemObject = this.item
    itemObject.enable = val || (itemObject.enable == -1 ? 1 : -1)
}


/**
 * Mark a collection of dates as “disabled”.
 */
DatePicker.prototype.deactivate = function( type, datesToDisable ) {

    var calendar = this,
        disabledItems = calendar.item.disable.slice(0)


    // If we’re flipping, that’s all we need to do.
    if ( datesToDisable == 'flip' ) {
        calendar.flipEnable()
    }

    else if ( datesToDisable === false ) {
        calendar.flipEnable(1)
        disabledItems = []
    }

    else if ( datesToDisable === true ) {
        calendar.flipEnable(-1)
        disabledItems = []
    }

    // Otherwise go through the dates to disable.
    else {

        datesToDisable.map(function( unitToDisable ) {

            var matchFound

            // When we have disabled items, check for matches.
            // If something is matched, immediately break out.
            for ( var index = 0; index < disabledItems.length; index += 1 ) {
                if ( calendar.isDateExact( unitToDisable, disabledItems[index] ) ) {
                    matchFound = true
                    break
                }
            }

            // If nothing was found, add the validated unit to the collection.
            if ( !matchFound ) {
                if (
                    _.isInteger( unitToDisable ) ||
                    _.isDate( unitToDisable ) ||
                    $.isArray( unitToDisable ) ||
                    ( $.isPlainObject( unitToDisable ) && unitToDisable.from && unitToDisable.to )
                ) {
                    disabledItems.push( unitToDisable )
                }
            }
        })
    }

    // Return the updated collection.
    return disabledItems
} //DatePicker.prototype.deactivate


/**
 * Mark a collection of dates as “enabled”.
 */
DatePicker.prototype.activate = function( type, datesToEnable ) {

    var calendar = this,
        disabledItems = calendar.item.disable,
        disabledItemsCount = disabledItems.length

    // If we’re flipping, that’s all we need to do.
    if ( datesToEnable == 'flip' ) {
        calendar.flipEnable()
    }

    else if ( datesToEnable === true ) {
        calendar.flipEnable(1)
        disabledItems = []
    }

    else if ( datesToEnable === false ) {
        calendar.flipEnable(-1)
        disabledItems = []
    }

    // Otherwise go through the disabled dates.
    else {

        datesToEnable.map(function( unitToEnable ) {

            var matchFound,
                disabledUnit,
                index,
                isExactRange

            // Go through the disabled items and try to find a match.
            for ( index = 0; index < disabledItemsCount; index += 1 ) {

                disabledUnit = disabledItems[index]

                // When an exact match is found, remove it from the collection.
                if ( calendar.isDateExact( disabledUnit, unitToEnable ) ) {
                    matchFound = disabledItems[index] = null
                    isExactRange = true
                    break
                }

                // When an overlapped match is found, add the “inverted” state to it.
                else if ( calendar.isDateOverlap( disabledUnit, unitToEnable ) ) {
                    if ( $.isPlainObject( unitToEnable ) ) {
                        unitToEnable.inverted = true
                        matchFound = unitToEnable
                    }
                    else if ( $.isArray( unitToEnable ) ) {
                        matchFound = unitToEnable
                        if ( !matchFound[3] ) matchFound.push( 'inverted' )
                    }
                    else if ( _.isDate( unitToEnable ) ) {
                        matchFound = [ unitToEnable.getFullYear(), unitToEnable.getMonth(), unitToEnable.getDate(), 'inverted' ]
                    }
                    break
                }
            }

            // If a match was found, remove a previous duplicate entry.
            if ( matchFound ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                if ( calendar.isDateExact( disabledItems[index], unitToEnable ) ) {
                    disabledItems[index] = null
                    break
                }
            }

            // In the event that we’re dealing with an exact range of dates,
            // make sure there are no “inverted” dates because of it.
            if ( isExactRange ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                if ( calendar.isDateOverlap( disabledItems[index], unitToEnable ) ) {
                    disabledItems[index] = null
                    break
                }
            }

            // If something is still matched, add it into the collection.
            if ( matchFound ) {
                disabledItems.push( matchFound )
            }
        })
    }

    // Return the updated collection.
    return disabledItems.filter(function( val ) { return val != null })
} //DatePicker.prototype.activate


/**
 * Create a string for the nodes in the picker.
 */
DatePicker.prototype.nodes = function( isOpen ) {

    var
        calendar = this,
        settings = calendar.settings,
        calendarItem = calendar.item,
        nowObject = calendarItem.now,
        selectedObject = calendarItem.select,
        highlightedObject = calendarItem.highlight,
        viewsetObject = calendarItem.view,
        disabledCollection = calendarItem.disable,
        minLimitObject = calendarItem.min,
        maxLimitObject = calendarItem.max,


        // Create the calendar table head using a copy of weekday labels collection.
        // * We do a copy so we don't mutate the original array.
        tableHead = (function( collection, fullCollection ) {

            // If the first day should be Monday, move Sunday to the end.
            if ( settings.firstDay ) {
                collection.push( collection.shift() )
                fullCollection.push( fullCollection.shift() )
            }

            // Create and return the table head group.
            return _.node(
                'thead',
                _.node(
                    'tr',
                    _.group({
                        min: 0,
                        max: DAYS_IN_WEEK - 1,
                        i: 1,
                        node: 'th',
                        item: function( counter ) {
                            return [
                                collection[ counter ],
                                settings.klass.weekdays,
                                'scope=col title="' + fullCollection[ counter ] + '"'
                            ]
                        }
                    })
                )
            ) //endreturn
        })( ( settings.showWeekdaysFull ? settings.weekdaysFull : settings.weekdaysShort ).slice( 0 ), settings.weekdaysFull.slice( 0 ) ), //tableHead


        // Create the nav for next/prev month.
        createMonthNav = function( next ) {

            // Otherwise, return the created month tag.
            return _.node(
                'div',
                ' ',
                settings.klass[ 'nav' + ( next ? 'Next' : 'Prev' ) ] + (

                    // If the focused month is outside the range, disabled the button.
                    ( next && viewsetObject.year >= maxLimitObject.year && viewsetObject.month >= maxLimitObject.month ) ||
                    ( !next && viewsetObject.year <= minLimitObject.year && viewsetObject.month <= minLimitObject.month ) ?
                    ' ' + settings.klass.navDisabled : ''
                ),
                'data-nav=' + ( next || -1 ) + ' ' +
                _.ariaAttr({
                    role: 'button',
                    controls: calendar.$node[0].id + '_table'
                }) + ' ' +
                'title="' + (next ? settings.labelMonthNext : settings.labelMonthPrev ) + '"'
            ) //endreturn
        }, //createMonthNav


        // Create the month label.
        createMonthLabel = function() {

            var monthsCollection = settings.showMonthsShort ? settings.monthsShort : settings.monthsFull

            // If there are months to select, add a dropdown menu.
            if ( settings.selectMonths ) {

                return _.node( 'select',
                    _.group({
                        min: 0,
                        max: 11,
                        i: 1,
                        node: 'option',
                        item: function( loopedMonth ) {

                            return [

                                // The looped month and no classes.
                                monthsCollection[ loopedMonth ], 0,

                                // Set the value and selected index.
                                'value=' + loopedMonth +
                                ( viewsetObject.month == loopedMonth ? ' selected' : '' ) +
                                (
                                    (
                                        ( viewsetObject.year == minLimitObject.year && loopedMonth < minLimitObject.month ) ||
                                        ( viewsetObject.year == maxLimitObject.year && loopedMonth > maxLimitObject.month )
                                    ) ?
                                    ' disabled' : ''
                                )
                            ]
                        }
                    }),
                    settings.klass.selectMonth,
                    ( isOpen ? '' : 'disabled' ) + ' ' +
                    _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                    'title="' + settings.labelMonthSelect + '"'
                )
            }

            // If there's a need for a month selector
            return _.node( 'div', monthsCollection[ viewsetObject.month ], settings.klass.month )
        }, //createMonthLabel


        // Create the year label.
        createYearLabel = function() {

            var focusedYear = viewsetObject.year,

            // If years selector is set to a literal "true", set it to 5. Otherwise
            // divide in half to get half before and half after focused year.
            numberYears = settings.selectYears === true ? 5 : ~~( settings.selectYears / 2 )

            // If there are years to select, add a dropdown menu.
            if ( numberYears ) {

                var
                    minYear = minLimitObject.year,
                    maxYear = maxLimitObject.year,
                    lowestYear = focusedYear - numberYears,
                    highestYear = focusedYear + numberYears

                // If the min year is greater than the lowest year, increase the highest year
                // by the difference and set the lowest year to the min year.
                if ( minYear > lowestYear ) {
                    highestYear += minYear - lowestYear
                    lowestYear = minYear
                }

                // If the max year is less than the highest year, decrease the lowest year
                // by the lower of the two: available and needed years. Then set the
                // highest year to the max year.
                if ( maxYear < highestYear ) {

                    var availableYears = lowestYear - minYear,
                        neededYears = highestYear - maxYear

                    lowestYear -= availableYears > neededYears ? neededYears : availableYears
                    highestYear = maxYear
                }

                return _.node( 'select',
                    _.group({
                        min: lowestYear,
                        max: highestYear,
                        i: 1,
                        node: 'option',
                        item: function( loopedYear ) {
                            return [

                                // The looped year and no classes.
                                loopedYear, 0,

                                // Set the value and selected index.
                                'value=' + loopedYear + ( focusedYear == loopedYear ? ' selected' : '' )
                            ]
                        }
                    }),
                    settings.klass.selectYear,
                    ( isOpen ? '' : 'disabled' ) + ' ' + _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                    'title="' + settings.labelYearSelect + '"'
                )
            }

            // Otherwise just return the year focused
            return _.node( 'div', focusedYear, settings.klass.year )
        } //createYearLabel


    // Create and return the entire calendar.
    return _.node(
        'div',
        ( settings.selectYears ? createYearLabel() + createMonthLabel() : createMonthLabel() + createYearLabel() ) +
        createMonthNav() + createMonthNav( 1 ),
        settings.klass.header
    ) + _.node(
        'table',
        tableHead +
        _.node(
            'tbody',
            _.group({
                min: 0,
                max: WEEKS_IN_CALENDAR - 1,
                i: 1,
                node: 'tr',
                item: function( rowCounter ) {

                    // If Monday is the first day and the month starts on Sunday, shift the date back a week.
                    var shiftDateBy = settings.firstDay && calendar.create([ viewsetObject.year, viewsetObject.month, 1 ]).day === 0 ? -7 : 0

                    return [
                        _.group({
                            min: DAYS_IN_WEEK * rowCounter - viewsetObject.day + shiftDateBy + 1, // Add 1 for weekday 0index
                            max: function() {
                                return this.min + DAYS_IN_WEEK - 1
                            },
                            i: 1,
                            node: 'td',
                            item: function( targetDate ) {

                                // Convert the time date from a relative date to a target date.
                                targetDate = calendar.create([ viewsetObject.year, viewsetObject.month, targetDate + ( settings.firstDay ? 1 : 0 ) ])

                                var isSelected = selectedObject && selectedObject.pick == targetDate.pick,
                                    isHighlighted = highlightedObject && highlightedObject.pick == targetDate.pick,
                                    isDisabled = disabledCollection && calendar.disabled( targetDate ) || targetDate.pick < minLimitObject.pick || targetDate.pick > maxLimitObject.pick,
                                    formattedDate = _.trigger( calendar.formats.toString, calendar, [ settings.format, targetDate ] )

                                return [
                                    _.node(
                                        'div',
                                        targetDate.date,
                                        (function( klasses ) {

                                            // Add the `infocus` or `outfocus` classes based on month in view.
                                            klasses.push( viewsetObject.month == targetDate.month ? settings.klass.infocus : settings.klass.outfocus )

                                            // Add the `today` class if needed.
                                            if ( nowObject.pick == targetDate.pick ) {
                                                klasses.push( settings.klass.now )
                                            }

                                            // Add the `selected` class if something's selected and the time matches.
                                            if ( isSelected ) {
                                                klasses.push( settings.klass.selected )
                                            }

                                            // Add the `highlighted` class if something's highlighted and the time matches.
                                            if ( isHighlighted ) {
                                                klasses.push( settings.klass.highlighted )
                                            }

                                            // Add the `disabled` class if something's disabled and the object matches.
                                            if ( isDisabled ) {
                                                klasses.push( settings.klass.disabled )
                                            }

                                            return klasses.join( ' ' )
                                        })([ settings.klass.day ]),
                                        'data-pick=' + targetDate.pick + ' ' + _.ariaAttr({
                                            role: 'gridcell',
                                            label: formattedDate,
                                            selected: isSelected && calendar.$node.val() === formattedDate ? true : null,
                                            activedescendant: isHighlighted ? true : null,
                                            disabled: isDisabled ? true : null
                                        })
                                    ),
                                    '',
                                    _.ariaAttr({ role: 'presentation' })
                                ] //endreturn
                            }
                        })
                    ] //endreturn
                }
            })
        ),
        settings.klass.table,
        'id="' + calendar.$node[0].id + '_table' + '" ' + _.ariaAttr({
            role: 'grid',
            controls: calendar.$node[0].id,
            readonly: true
        })
    ) +

    // * For Firefox forms to submit, make sure to set the buttons’ `type` attributes as “button”.
    _.node(
        'div',
        _.node( 'button', settings.today, settings.klass.buttonToday,
            'type=button data-pick=' + nowObject.pick +
            ( isOpen && !calendar.disabled(nowObject) ? '' : ' disabled' ) + ' ' +
            _.ariaAttr({ controls: calendar.$node[0].id }) ) +
        _.node( 'button', settings.clear, settings.klass.buttonClear,
            'type=button data-clear=1' +
            ( isOpen ? '' : ' disabled' ) + ' ' +
            _.ariaAttr({ controls: calendar.$node[0].id }) ) +
        _.node('button', settings.close, settings.klass.buttonClose,
            'type=button data-close=true ' +
            ( isOpen ? '' : ' disabled' ) + ' ' +
            _.ariaAttr({ controls: calendar.$node[0].id }) ),
        settings.klass.footer
    ) //endreturn
} //DatePicker.prototype.nodes




/**
 * The date picker defaults.
 */
DatePicker.defaults = (function( prefix ) {

    return {

        // The title label to use for the month nav buttons
        labelMonthNext: 'Next month',
        labelMonthPrev: 'Previous month',

        // The title label to use for the dropdown selectors
        labelMonthSelect: 'Select a month',
        labelYearSelect: 'Select a year',

        // Months and weekdays
        monthsFull: [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ],
        monthsShort: [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ],
        weekdaysFull: [ 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday' ],
        weekdaysShort: [ 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat' ],

        // Today and clear
        today: 'Today',
        clear: 'Clear',
        close: 'Close',

        // Picker close behavior
        closeOnSelect: true,
        closeOnClear: true,

        // The format to show on the `input` element
        format: 'd mmmm, yyyy',

        // Classes
        klass: {

            table: prefix + 'table',

            header: prefix + 'header',

            navPrev: prefix + 'nav--prev',
            navNext: prefix + 'nav--next',
            navDisabled: prefix + 'nav--disabled',

            month: prefix + 'month',
            year: prefix + 'year',

            selectMonth: prefix + 'select--month',
            selectYear: prefix + 'select--year',

            weekdays: prefix + 'weekday',

            day: prefix + 'day',
            disabled: prefix + 'day--disabled',
            selected: prefix + 'day--selected',
            highlighted: prefix + 'day--highlighted',
            now: prefix + 'day--today',
            infocus: prefix + 'day--infocus',
            outfocus: prefix + 'day--outfocus',

            footer: prefix + 'footer',

            buttonClear: prefix + 'button--clear',
            buttonToday: prefix + 'button--today',
            buttonClose: prefix + 'button--close'
        }
    }
})( Picker.klasses().picker + '__' )





/**
 * Extend the picker to add the date picker.
 */
Picker.extend( 'pickadate', DatePicker )


}));



var $ = jQuery;
$('#fileupload').fileupload({
	dataType: 'json',
	add: function (e, data) {
		$('.submit-form').off('click').on('click', function(e) {
    		e.preventDefault();
            if ( doValidation() ) {
                var response = grecaptcha.getResponse();
                if ( response.length === 0 ) {
					showError('Please confirm you are a human to continue.');
                }
                else if (fileValidation(data.files)) {
					$('.tbc_message.error').hide();
					$('.loading').show();
					$.each(data.files, function (index, file) {
					console.log('/' + file.name.replace(/ /g,'-'));
					console.log('done');
					console.log(fd); 
					    var fd = new FormData();
                        fd.append('file',file);
                        fd.append('action', 'file_uplod'); 
                        $.ajax({
                            type : "post",
                            url: tbc_ajax_url,
                            data:fd,
                            contentType: false,
                            processData: false,
                            success: function(response) 
                            {  
                               if(response == "success"){
                                 $('.loading').hide();
                                 $('#file_form').submit();
                               }
                               if(response == "error"){
                                  showError('Oops something happened, please try again.');
                               }
                            }   
                        });
						
				    });
				}
				else {
					showError('Invalid file extension. Please try again.');
				}
            }
    		else {
				showError('Please make sure all required fields are completed and try again.');
            }
    	});
	}
}).prop('disabled', !$.support.fileInput).parent().addClass($.support.fileInput ? undefined : 'disabled');

function doValidation() {
    var valid_submission = true;
    $('.tbcform input.required, .tbcform select.required').each(function(index, value) {
        if ( $(this).hasClass('email') ) {
            if ( $(this).val() === '' ) {
                valid_submission = false;
            }
            else {
                var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;
                if ( ! regex.test($(this).val()) ) {
                    valid_submission = false;
                }
            }
        }
        else {
            if ( $(this).val() === '' ) {
                valid_submission = false;
            }
        }
    });
    return valid_submission;
}

function fileValidation(files) {
	var valid_submission = true;
    var allowedExtensions = /(\.jpg|\.jpeg|\.png|\.pdf|\.zip|\.tif|\.ai|\.idn|\.eps)$/i;
	$.each(files, function (index, file) {
		if(!allowedExtensions.exec(file.name)){
			valid_submission = false;
		}
	});
	return valid_submission;
}

function showError(message) {
	$('.loading').hide();
	$('.tbc_message.error p').text(message).parent().show().focus();
	$('html, body').animate({
		scrollTop: $('.tbc_message').offset().top - 115
	}, 800);
}

$('.datepicker').pickadate({
    format: 'mmmm d, yyyy'
});