/files/selectize/0.9.0/js/standalone/selectize.js

/**
 * sifter.js
 * Copyright (c) 2013 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('sifter', factory);
	} else if (typeof exports === 'object') {
		module.exports = factory();
	} else {
		root.Sifter = factory();
	}
}(this, function() {

	/**
	 * Textually searches arrays and hashes of objects
	 * by property (or multiple properties). Designed
	 * specifically for autocomplete.
	 *
	 * @constructor
	 * @param {array|object} items
	 * @param {object} items
	 */
	var Sifter = function(items, settings) {
		this.items = items;
		this.settings = settings || {diacritics: true};
	};

	/**
	 * Splits a search string into an array of individual
	 * regexps to be used to match results.
	 *
	 * @param {string} query
	 * @returns {array}
	 */
	Sifter.prototype.tokenize = function(query) {
		query = trim(String(query || '').toLowerCase());
		if (!query || !query.length) return [];

		var i, n, regex, letter;
		var tokens = [];
		var words = query.split(/ +/);

		for (i = 0, n = words.length; i < n; i++) {
			regex = escape_regex(words[i]);
			if (this.settings.diacritics) {
				for (letter in DIACRITICS) {
					if (DIACRITICS.hasOwnProperty(letter)) {
						regex = regex.replace(new RegExp(letter, 'g'), DIACRITICS[letter]);
					}
				}
			}
			tokens.push({
				string : words[i],
				regex  : new RegExp(regex, 'i')
			});
		}

		return tokens;
	};

	/**
	 * Iterates over arrays and hashes.
	 *
	 * ```
	 * this.iterator(this.items, function(item, id) {
	 *    // invoked for each item
	 * });
	 * ```
	 *
	 * @param {array|object} object
	 */
	Sifter.prototype.iterator = function(object, callback) {
		var iterator;
		if (is_array(object)) {
			iterator = Array.prototype.forEach || function(callback) {
				for (var i = 0, n = this.length; i < n; i++) {
					callback(this[i], i, this);
				}
			};
		} else {
			iterator = function(callback) {
				for (var key in this) {
					if (this.hasOwnProperty(key)) {
						callback(this[key], key, this);
					}
				}
			};
		}

		iterator.apply(object, [callback]);
	};

	/**
	 * Returns a function to be used to score individual results.
	 *
	 * Good matches will have a higher score than poor matches.
	 * If an item is not a match, 0 will be returned by the function.
	 *
	 * @param {object|string} search
	 * @param {object} options (optional)
	 * @returns {function}
	 */
	Sifter.prototype.getScoreFunction = function(search, options) {
		var self, fields, tokens, token_count;

		self        = this;
		search      = self.prepareSearch(search, options);
		tokens      = search.tokens;
		fields      = search.options.fields;
		token_count = tokens.length;

		/**
		 * Calculates how close of a match the
		 * given value is against a search token.
		 *
		 * @param {mixed} value
		 * @param {object} token
		 * @return {number}
		 */
		var scoreValue = function(value, token) {
			var score, pos;

			if (!value) return 0;
			value = String(value || '');
			pos = value.search(token.regex);
			if (pos === -1) return 0;
			score = token.string.length / value.length;
			if (pos === 0) score += 0.5;
			return score;
		};

		/**
		 * Calculates the score of an object
		 * against the search query.
		 *
		 * @param {object} token
		 * @param {object} data
		 * @return {number}
		 */
		var scoreObject = (function() {
			var field_count = fields.length;
			if (!field_count) {
				return function() { return 0; };
			}
			if (field_count === 1) {
				return function(token, data) {
					return scoreValue(data[fields[0]], token);
				};
			}
			return function(token, data) {
				for (var i = 0, sum = 0; i < field_count; i++) {
					sum += scoreValue(data[fields[i]], token);
				}
				return sum / field_count;
			};
		})();

		if (!token_count) {
			return function() { return 0; };
		}
		if (token_count === 1) {
			return function(data) {
				return scoreObject(tokens[0], data);
			};
		}

		if (search.options.conjunction === 'and') {
			return function(data) {
				var score;
				for (var i = 0, sum = 0; i < token_count; i++) {
					score = scoreObject(tokens[i], data);
					if (score <= 0) return 0;
					sum += score;
				}
				return sum / token_count;
			};
		} else {
			return function(data) {
				for (var i = 0, sum = 0; i < token_count; i++) {
					sum += scoreObject(tokens[i], data);
				}
				return sum / token_count;
			};
		}
	};

	/**
	 * Returns a function that can be used to compare two
	 * results, for sorting purposes. If no sorting should
	 * be performed, `null` will be returned.
	 *
	 * @param {string|object} search
	 * @param {object} options
	 * @return function(a,b)
	 */
	Sifter.prototype.getSortFunction = function(search, options) {
		var i, n, self, field, fields, fields_count, multiplier, multipliers, get_field, implicit_score, sort;

		self   = this;
		search = self.prepareSearch(search, options);
		sort   = (!search.query && options.sort_empty) || options.sort;

		/**
		 * Fetches the specified sort field value
		 * from a search result item.
		 *
		 * @param  {string} name
		 * @param  {object} result
		 * @return {mixed}
		 */
		get_field  = function(name, result) {
			if (name === '$score') return result.score;
			return self.items[result.id][name];
		};

		// parse options
		fields = [];
		if (sort) {
			for (i = 0, n = sort.length; i < n; i++) {
				if (search.query || sort[i].field !== '$score') {
					fields.push(sort[i]);
				}
			}
		}

		// the "$score" field is implied to be the primary
		// sort field, unless it's manually specified
		if (search.query) {
			implicit_score = true;
			for (i = 0, n = fields.length; i < n; i++) {
				if (fields[i].field === '$score') {
					implicit_score = false;
					break;
				}
			}
			if (implicit_score) {
				fields.unshift({field: '$score', direction: 'desc'});
			}
		} else {
			for (i = 0, n = fields.length; i < n; i++) {
				if (fields[i].field === '$score') {
					fields.splice(i, 1);
					break;
				}
			}
		}

		multipliers = [];
		for (i = 0, n = fields.length; i < n; i++) {
			multipliers.push(fields[i].direction === 'desc' ? -1 : 1);
		}

		// build function
		fields_count = fields.length;
		if (!fields_count) {
			return null;
		} else if (fields_count === 1) {
			field = fields[0].field;
			multiplier = multipliers[0];
			return function(a, b) {
				return multiplier * cmp(
					get_field(field, a),
					get_field(field, b)
				);
			};
		} else {
			return function(a, b) {
				var i, result, a_value, b_value, field;
				for (i = 0; i < fields_count; i++) {
					field = fields[i].field;
					result = multipliers[i] * cmp(
						get_field(field, a),
						get_field(field, b)
					);
					if (result) return result;
				}
				return 0;
			};
		}
	};

	/**
	 * Parses a search query and returns an object
	 * with tokens and fields ready to be populated
	 * with results.
	 *
	 * @param {string} query
	 * @param {object} options
	 * @returns {object}
	 */
	Sifter.prototype.prepareSearch = function(query, options) {
		if (typeof query === 'object') return query;

		options = extend({}, options);

		var option_fields     = options.fields;
		var option_sort       = options.sort;
		var option_sort_empty = options.sort_empty;

		if (option_fields && !is_array(option_fields)) options.fields = [option_fields];
		if (option_sort && !is_array(option_sort)) options.sort = [option_sort];
		if (option_sort_empty && !is_array(option_sort_empty)) options.sort_empty = [option_sort_empty];

		return {
			options : options,
			query   : String(query || '').toLowerCase(),
			tokens  : this.tokenize(query),
			total   : 0,
			items   : []
		};
	};

	/**
	 * Searches through all items and returns a sorted array of matches.
	 *
	 * The `options` parameter can contain:
	 *
	 *   - fields {string|array}
	 *   - sort {array}
	 *   - score {function}
	 *   - filter {bool}
	 *   - limit {integer}
	 *
	 * Returns an object containing:
	 *
	 *   - options {object}
	 *   - query {string}
	 *   - tokens {array}
	 *   - total {int}
	 *   - items {array}
	 *
	 * @param {string} query
	 * @param {object} options
	 * @returns {object}
	 */
	Sifter.prototype.search = function(query, options) {
		var self = this, value, score, search, calculateScore;
		var fn_sort;
		var fn_score;

		search  = this.prepareSearch(query, options);
		options = search.options;
		query   = search.query;

		// generate result scoring function
		fn_score = options.score || self.getScoreFunction(search);

		// perform search and sort
		if (query.length) {
			self.iterator(self.items, function(item, id) {
				score = fn_score(item);
				if (options.filter === false || score > 0) {
					search.items.push({'score': score, 'id': id});
				}
			});
		} else {
			self.iterator(self.items, function(item, id) {
				search.items.push({'score': 1, 'id': id});
			});
		}

		fn_sort = self.getSortFunction(search, options);
		if (fn_sort) search.items.sort(fn_sort);

		// apply limits
		search.total = search.items.length;
		if (typeof options.limit === 'number') {
			search.items = search.items.slice(0, options.limit);
		}

		return search;
	};

	// utilities
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	var cmp = function(a, b) {
		if (typeof a === 'number' && typeof b === 'number') {
			return a > b ? 1 : (a < b ? -1 : 0);
		}
		a = String(a || '').toLowerCase();
		b = String(b || '').toLowerCase();
		if (a > b) return 1;
		if (b > a) return -1;
		return 0;
	};

	var extend = function(a, b) {
		var i, n, k, object;
		for (i = 1, n = arguments.length; i < n; i++) {
			object = arguments[i];
			if (!object) continue;
			for (k in object) {
				if (object.hasOwnProperty(k)) {
					a[k] = object[k];
				}
			}
		}
		return a;
	};

	var trim = function(str) {
		return (str + '').replace(/^\s+|\s+$|/g, '');
	};

	var escape_regex = function(str) {
		return (str + '').replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1');
	};

	var is_array = Array.isArray || ($ && $.isArray) || function(object) {
		return Object.prototype.toString.call(object) === '[object Array]';
	};

	var DIACRITICS = {
		'a': '[aÀÁÂÃÄÅàáâãäå]',
		'c': '[cÇçćĆčČ]',
		'd': '[dđĐďĎ]',
		'e': '[eÈÉÊËèéêëěĚ]',
		'i': '[iÌÍÎÏìíîï]',
		'n': '[nÑñňŇ]',
		'o': '[oÒÓÔÕÕÖØòóôõöø]',
		'r': '[rřŘ]',
		's': '[sŠš]',
		't': '[tťŤ]',
		'u': '[uÙÚÛÜùúûüůŮ]',
		'y': '[yŸÿýÝ]',
		'z': '[zŽž]'
	};

	// export
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	return Sifter;
}));



/**
 * microplugin.js
 * Copyright (c) 2013 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('microplugin', factory);
	} else if (typeof exports === 'object') {
		module.exports = factory();
	} else {
		root.MicroPlugin = factory();
	}
}(this, function() {
	var MicroPlugin = {};

	MicroPlugin.mixin = function(Interface) {
		Interface.plugins = {};

		/**
		 * Initializes the listed plugins (with options).
		 * Acceptable formats:
		 *
		 * List (without options):
		 *   ['a', 'b', 'c']
		 *
		 * List (with options):
		 *   [{'name': 'a', options: {}}, {'name': 'b', options: {}}]
		 *
		 * Hash (with options):
		 *   {'a': { ... }, 'b': { ... }, 'c': { ... }}
		 *
		 * @param {mixed} plugins
		 */
		Interface.prototype.initializePlugins = function(plugins) {
			var i, n, key;
			var self  = this;
			var queue = [];

			self.plugins = {
				names     : [],
				settings  : {},
				requested : {},
				loaded    : {}
			};

			if (utils.isArray(plugins)) {
				for (i = 0, n = plugins.length; i < n; i++) {
					if (typeof plugins[i] === 'string') {
						queue.push(plugins[i]);
					} else {
						self.plugins.settings[plugins[i].name] = plugins[i].options;
						queue.push(plugins[i].name);
					}
				}
			} else if (plugins) {
				for (key in plugins) {
					if (plugins.hasOwnProperty(key)) {
						self.plugins.settings[key] = plugins[key];
						queue.push(key);
					}
				}
			}

			while (queue.length) {
				self.require(queue.shift());
			}
		};

		Interface.prototype.loadPlugin = function(name) {
			var self    = this;
			var plugins = self.plugins;
			var plugin  = Interface.plugins[name];

			if (!Interface.plugins.hasOwnProperty(name)) {
				throw new Error('Unable to find "' +  name + '" plugin');
			}

			plugins.requested[name] = true;
			plugins.loaded[name] = plugin.fn.apply(self, [self.plugins.settings[name] || {}]);
			plugins.names.push(name);
		};

		/**
		 * Initializes a plugin.
		 *
		 * @param {string} name
		 */
		Interface.prototype.require = function(name) {
			var self = this;
			var plugins = self.plugins;

			if (!self.plugins.loaded.hasOwnProperty(name)) {
				if (plugins.requested[name]) {
					throw new Error('Plugin has circular dependency ("' + name + '")');
				}
				self.loadPlugin(name);
			}

			return plugins.loaded[name];
		};

		/**
		 * Registers a plugin.
		 *
		 * @param {string} name
		 * @param {function} fn
		 */
		Interface.define = function(name, fn) {
			Interface.plugins[name] = {
				'name' : name,
				'fn'   : fn
			};
		};
	};

	var utils = {
		isArray: Array.isArray || function(vArg) {
			return Object.prototype.toString.call(vArg) === '[object Array]';
		}
	};

	return MicroPlugin;
}));

/**
 * selectize.js (v0.9.0)
 * Copyright (c) 2013 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

/*jshint curly:false */
/*jshint browser:true */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('selectize', ['jquery','sifter','microplugin'], factory);
	} else if (typeof exports === 'object') {
		module.exports = factory(require('jquery'), require('sifter'), require('microplugin'));
	} else {
		root.Selectize = factory(root.jQuery, root.Sifter, root.MicroPlugin);
	}
}(this, function($, Sifter, MicroPlugin) {
	'use strict';

	var highlight = function($element, pattern) {
		if (typeof pattern === 'string' && !pattern.length) return;
		var regex = (typeof pattern === 'string') ? new RegExp(pattern, 'i') : pattern;
	
		var highlight = function(node) {
			var skip = 0;
			if (node.nodeType === 3) {
				var pos = node.data.search(regex);
				if (pos >= 0 && node.data.length > 0) {
					var match = node.data.match(regex);
					var spannode = document.createElement('span');
					spannode.className = 'highlight';
					var middlebit = node.splitText(pos);
					var endbit = middlebit.splitText(match[0].length);
					var middleclone = middlebit.cloneNode(true);
					spannode.appendChild(middleclone);
					middlebit.parentNode.replaceChild(spannode, middlebit);
					skip = 1;
				}
			} else if (node.nodeType === 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
				for (var i = 0; i < node.childNodes.length; ++i) {
					i += highlight(node.childNodes[i]);
				}
			}
			return skip;
		};
	
		return $element.each(function() {
			highlight(this);
		});
	};
	
	var MicroEvent = function() {};
	MicroEvent.prototype = {
		on: function(event, fct){
			this._events = this._events || {};
			this._events[event] = this._events[event] || [];
			this._events[event].push(fct);
		},
		off: function(event, fct){
			var n = arguments.length;
			if (n === 0) return delete this._events;
			if (n === 1) return delete this._events[event];
	
			this._events = this._events || {};
			if (event in this._events === false) return;
			this._events[event].splice(this._events[event].indexOf(fct), 1);
		},
		trigger: function(event /* , args... */){
			this._events = this._events || {};
			if (event in this._events === false) return;
			for (var i = 0; i < this._events[event].length; i++){
				this._events[event][i].apply(this, Array.prototype.slice.call(arguments, 1));
			}
		}
	};
	
	/**
	 * Mixin will delegate all MicroEvent.js function in the destination object.
	 *
	 * - MicroEvent.mixin(Foobar) will make Foobar able to use MicroEvent
	 *
	 * @param {object} the object which will support MicroEvent
	 */
	MicroEvent.mixin = function(destObject){
		var props = ['on', 'off', 'trigger'];
		for (var i = 0; i < props.length; i++){
			destObject.prototype[props[i]] = MicroEvent.prototype[props[i]];
		}
	};
	
	var IS_MAC        = /Mac/.test(navigator.userAgent);
	
	var KEY_A         = 65;
	var KEY_COMMA     = 188;
	var KEY_RETURN    = 13;
	var KEY_ESC       = 27;
	var KEY_LEFT      = 37;
	var KEY_UP        = 38;
	var KEY_P         = 80;
	var KEY_RIGHT     = 39;
	var KEY_DOWN      = 40;
	var KEY_N         = 78;
	var KEY_BACKSPACE = 8;
	var KEY_DELETE    = 46;
	var KEY_SHIFT     = 16;
	var KEY_CMD       = IS_MAC ? 91 : 17;
	var KEY_CTRL      = IS_MAC ? 18 : 17;
	var KEY_TAB       = 9;
	
	var TAG_SELECT    = 1;
	var TAG_INPUT     = 2;
	
	
	var isset = function(object) {
		return typeof object !== 'undefined';
	};
	
	/**
	 * Converts a scalar to its best string representation
	 * for hash keys and HTML attribute values.
	 *
	 * Transformations:
	 *   'str'     -> 'str'
	 *   null      -> ''
	 *   undefined -> ''
	 *   true      -> '1'
	 *   false     -> '0'
	 *   0         -> '0'
	 *   1         -> '1'
	 *
	 * @param {string} value
	 * @returns {string}
	 */
	var hash_key = function(value) {
		if (typeof value === 'undefined' || value === null) return '';
		if (typeof value === 'boolean') return value ? '1' : '0';
		return value + '';
	};
	
	/**
	 * Escapes a string for use within HTML.
	 *
	 * @param {string} str
	 * @returns {string}
	 */
	var escape_html = function(str) {
		return (str + '')
			.replace(/&/g, '&amp;')
			.replace(/</g, '&lt;')
			.replace(/>/g, '&gt;')
			.replace(/"/g, '&quot;');
	};
	
	/**
	 * Escapes "$" characters in replacement strings.
	 *
	 * @param {string} str
	 * @returns {string}
	 */
	var escape_replace = function(str) {
		return (str + '').replace(/\$/g, '$$$$');
	};
	
	var hook = {};
	
	/**
	 * Wraps `method` on `self` so that `fn`
	 * is invoked before the original method.
	 *
	 * @param {object} self
	 * @param {string} method
	 * @param {function} fn
	 */
	hook.before = function(self, method, fn) {
		var original = self[method];
		self[method] = function() {
			fn.apply(self, arguments);
			return original.apply(self, arguments);
		};
	};
	
	/**
	 * Wraps `method` on `self` so that `fn`
	 * is invoked after the original method.
	 *
	 * @param {object} self
	 * @param {string} method
	 * @param {function} fn
	 */
	hook.after = function(self, method, fn) {
		var original = self[method];
		self[method] = function() {
			var result = original.apply(self, arguments);
			fn.apply(self, arguments);
			return result;
		};
	};
	
	/**
	 * Builds a hash table out of an array of
	 * objects, using the specified `key` within
	 * each object.
	 *
	 * @param {string} key
	 * @param {mixed} objects
	 */
	var build_hash_table = function(key, objects) {
		if (!$.isArray(objects)) return objects;
		var i, n, table = {};
		for (i = 0, n = objects.length; i < n; i++) {
			if (objects[i].hasOwnProperty(key)) {
				table[objects[i][key]] = objects[i];
			}
		}
		return table;
	};
	
	/**
	 * Wraps `fn` so that it can only be invoked once.
	 *
	 * @param {function} fn
	 * @returns {function}
	 */
	var once = function(fn) {
		var called = false;
		return function() {
			if (called) return;
			called = true;
			fn.apply(this, arguments);
		};
	};
	
	/**
	 * Wraps `fn` so that it can only be called once
	 * every `delay` milliseconds (invoked on the falling edge).
	 *
	 * @param {function} fn
	 * @param {int} delay
	 * @returns {function}
	 */
	var debounce = function(fn, delay) {
		var timeout;
		return function() {
			var self = this;
			var args = arguments;
			window.clearTimeout(timeout);
			timeout = window.setTimeout(function() {
				fn.apply(self, args);
			}, delay);
		};
	};
	
	/**
	 * Debounce all fired events types listed in `types`
	 * while executing the provided `fn`.
	 *
	 * @param {object} self
	 * @param {array} types
	 * @param {function} fn
	 */
	var debounce_events = function(self, types, fn) {
		var type;
		var trigger = self.trigger;
		var event_args = {};
	
		// override trigger method
		self.trigger = function() {
			var type = arguments[0];
			if (types.indexOf(type) !== -1) {
				event_args[type] = arguments;
			} else {
				return trigger.apply(self, arguments);
			}
		};
	
		// invoke provided function
		fn.apply(self, []);
		self.trigger = trigger;
	
		// trigger queued events
		for (type in event_args) {
			if (event_args.hasOwnProperty(type)) {
				trigger.apply(self, event_args[type]);
			}
		}
	};
	
	/**
	 * A workaround for http://bugs.jquery.com/ticket/6696
	 *
	 * @param {object} $parent - Parent element to listen on.
	 * @param {string} event - Event name.
	 * @param {string} selector - Descendant selector to filter by.
	 * @param {function} fn - Event handler.
	 */
	var watchChildEvent = function($parent, event, selector, fn) {
		$parent.on(event, selector, function(e) {
			var child = e.target;
			while (child && child.parentNode !== $parent[0]) {
				child = child.parentNode;
			}
			e.currentTarget = child;
			return fn.apply(this, [e]);
		});
	};
	
	/**
	 * Determines the current selection within a text input control.
	 * Returns an object containing:
	 *   - start
	 *   - length
	 *
	 * @param {object} input
	 * @returns {object}
	 */
	var getSelection = function(input) {
		var result = {};
		if ('selectionStart' in input) {
			result.start = input.selectionStart;
			result.length = input.selectionEnd - result.start;
		} else if (document.selection) {
			input.focus();
			var sel = document.selection.createRange();
			var selLen = document.selection.createRange().text.length;
			sel.moveStart('character', -input.value.length);
			result.start = sel.text.length - selLen;
			result.length = selLen;
		}
		return result;
	};
	
	/**
	 * Copies CSS properties from one element to another.
	 *
	 * @param {object} $from
	 * @param {object} $to
	 * @param {array} properties
	 */
	var transferStyles = function($from, $to, properties) {
		var i, n, styles = {};
		if (properties) {
			for (i = 0, n = properties.length; i < n; i++) {
				styles[properties[i]] = $from.css(properties[i]);
			}
		} else {
			styles = $from.css();
		}
		$to.css(styles);
	};
	
	/**
	 * Measures the width of a string within a
	 * parent element (in pixels).
	 *
	 * @param {string} str
	 * @param {object} $parent
	 * @returns {int}
	 */
	var measureString = function(str, $parent) {
		if (!str) {
			return 0;
		}
		
		var $test = $('<test>').css({
			position: 'absolute',
			top: -99999,
			left: -99999,
			width: 'auto',
			padding: 0,
			whiteSpace: 'pre'
		}).text(str).appendTo('body');
	
		transferStyles($parent, $test, [
			'letterSpacing',
			'fontSize',
			'fontFamily',
			'fontWeight',
			'textTransform'
		]);
	
		var width = $test.width();
		$test.remove();
	
		return width;
	};
	
	/**
	 * Sets up an input to grow horizontally as the user
	 * types. If the value is changed manually, you can
	 * trigger the "update" handler to resize:
	 *
	 * $input.trigger('update');
	 *
	 * @param {object} $input
	 */
	var autoGrow = function($input) {
		var currentWidth = null;
		
		var update = function(e) {
			var value, keyCode, printable, placeholder, width;
			var shift, character, selection;
			e = e || window.event || {};
	
			if (e.metaKey || e.altKey) return;
			if ($input.data('grow') === false) return;
	
			value = $input.val();
			if (e.type && e.type.toLowerCase() === 'keydown') {
				keyCode = e.keyCode;
				printable = (
					(keyCode >= 97 && keyCode <= 122) || // a-z
					(keyCode >= 65 && keyCode <= 90)  || // A-Z
					(keyCode >= 48 && keyCode <= 57)  || // 0-9
					keyCode === 32 // space
				);
	
				if (keyCode === KEY_DELETE || keyCode === KEY_BACKSPACE) {
					selection = getSelection($input[0]);
					if (selection.length) {
						value = value.substring(0, selection.start) + value.substring(selection.start + selection.length);
					} else if (keyCode === KEY_BACKSPACE && selection.start) {
						value = value.substring(0, selection.start - 1) + value.substring(selection.start + 1);
					} else if (keyCode === KEY_DELETE && typeof selection.start !== 'undefined') {
						value = value.substring(0, selection.start) + value.substring(selection.start + 1);
					}
				} else if (printable) {
					shift = e.shiftKey;
					character = String.fromCharCode(e.keyCode);
					if (shift) character = character.toUpperCase();
					else character = character.toLowerCase();
					value += character;
				}
			}
	
			placeholder = $input.attr('placeholder') || '';
			if (!value.length && placeholder.length) {
				value = placeholder;
			}
	
			width = measureString(value, $input) + 4;
			if (width !== currentWidth) {
				currentWidth = width;
				$input.width(width);
				$input.triggerHandler('resize');
			}
		};
	
		$input.on('keydown keyup update blur', update);
		update();
	};
	
	var Selectize = function($input, settings) {
		var key, i, n, dir, input, self = this;
		input = $input[0];
		input.selectize = self;
	
		// detect rtl environment
		dir = window.getComputedStyle ? window.getComputedStyle(input, null).getPropertyValue('direction') : input.currentStyle && input.currentStyle.direction;
		dir = dir || $input.parents('[dir]:first').attr('dir') || '';
	
		// setup default state
		$.extend(self, {
			settings         : settings,
			$input           : $input,
			tagType          : input.tagName.toLowerCase() === 'select' ? TAG_SELECT : TAG_INPUT,
			rtl              : /rtl/i.test(dir),
	
			eventNS          : '.selectize' + (++Selectize.count),
			highlightedValue : null,
			isOpen           : false,
			isDisabled       : false,
			isRequired       : $input.is('[required]'),
			isInvalid        : false,
			isLocked         : false,
			isFocused        : false,
			isInputHidden    : false,
			isSetup          : false,
			isShiftDown      : false,
			isCmdDown        : false,
			isCtrlDown       : false,
			ignoreFocus      : false,
			ignoreHover      : false,
			hasOptions       : false,
			currentResults   : null,
			lastValue        : '',
			caretPos         : 0,
			loading          : 0,
			loadedSearches   : {},
	
			$activeOption    : null,
			$activeItems     : [],
	
			optgroups        : {},
			options          : {},
			userOptions      : {},
			items            : [],
			renderCache      : {},
			onSearchChange   : debounce(self.onSearchChange, settings.loadThrottle)
		});
	
		// search system
		self.sifter = new Sifter(this.options, {diacritics: settings.diacritics});
	
		// build options table
		$.extend(self.options, build_hash_table(settings.valueField, settings.options));
		delete self.settings.options;
	
		// build optgroup table
		$.extend(self.optgroups, build_hash_table(settings.optgroupValueField, settings.optgroups));
		delete self.settings.optgroups;
	
		// option-dependent defaults
		self.settings.mode = self.settings.mode || (self.settings.maxItems === 1 ? 'single' : 'multi');
		if (typeof self.settings.hideSelected !== 'boolean') {
			self.settings.hideSelected = self.settings.mode === 'multi';
		}
	
		self.initializePlugins(self.settings.plugins);
		self.setupCallbacks();
		self.setupTemplates();
		self.setup();
	};
	
	// mixins
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	
	MicroEvent.mixin(Selectize);
	MicroPlugin.mixin(Selectize);
	
	// methods
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	
	$.extend(Selectize.prototype, {
	
		/**
		 * Creates all elements and sets up event bindings.
		 */
		setup: function() {
			var self      = this;
			var settings  = self.settings;
			var eventNS   = self.eventNS;
			var $window   = $(window);
			var $document = $(document);
	
			var $wrapper;
			var $control;
			var $control_input;
			var $dropdown;
			var $dropdown_content;
			var $dropdown_parent;
			var inputMode;
			var timeout_blur;
			var timeout_focus;
			var tab_index;
			var classes;
			var classes_plugins;
	
			inputMode         = self.settings.mode;
			tab_index         = self.$input.attr('tabindex') || '';
			classes           = self.$input.attr('class') || '';
	
			$wrapper          = $('<div>').addClass(settings.wrapperClass).addClass(classes).addClass(inputMode);
			$control          = $('<div>').addClass(settings.inputClass).addClass('items').appendTo($wrapper);
			$control_input    = $('<input type="text" autocomplete="off" />').appendTo($control).attr('tabindex', tab_index);
			$dropdown_parent  = $(settings.dropdownParent || $wrapper);
			$dropdown         = $('<div>').addClass(settings.dropdownClass).addClass(classes).addClass(inputMode).hide().appendTo($dropdown_parent);
			$dropdown_content = $('<div>').addClass(settings.dropdownContentClass).appendTo($dropdown);
	
			$wrapper.css({
				width: self.$input[0].style.width
			});
	
			if (self.plugins.names.length) {
				classes_plugins = 'plugin-' + self.plugins.names.join(' plugin-');
				$wrapper.addClass(classes_plugins);
				$dropdown.addClass(classes_plugins);
			}
	
			if ((settings.maxItems === null || settings.maxItems > 1) && self.tagType === TAG_SELECT) {
				self.$input.attr('multiple', 'multiple');
			}
	
			if (self.settings.placeholder) {
				$control_input.attr('placeholder', settings.placeholder);
			}
	
			self.$wrapper          = $wrapper;
			self.$control          = $control;
			self.$control_input    = $control_input;
			self.$dropdown         = $dropdown;
			self.$dropdown_content = $dropdown_content;
	
			$dropdown.on('mouseenter', '[data-selectable]', function() { return self.onOptionHover.apply(self, arguments); });
			$dropdown.on('mousedown', '[data-selectable]', function() { return self.onOptionSelect.apply(self, arguments); });
			watchChildEvent($control, 'mousedown', '*:not(input)', function() { return self.onItemSelect.apply(self, arguments); });
			autoGrow($control_input);
	
			$control.on({
				mousedown : function() { return self.onMouseDown.apply(self, arguments); },
				click     : function() { return self.onClick.apply(self, arguments); }
			});
	
			$control_input.on({
				mousedown : function(e) { e.stopPropagation(); },
				keydown   : function() { return self.onKeyDown.apply(self, arguments); },
				keyup     : function() { return self.onKeyUp.apply(self, arguments); },
				keypress  : function() { return self.onKeyPress.apply(self, arguments); },
				resize    : function() { self.positionDropdown.apply(self, []); },
				blur      : function() { return self.onBlur.apply(self, arguments); },
				focus     : function() { return self.onFocus.apply(self, arguments); }
			});
	
			$document.on('keydown' + eventNS, function(e) {
				self.isCmdDown = e[IS_MAC ? 'metaKey' : 'ctrlKey'];
				self.isCtrlDown = e[IS_MAC ? 'altKey' : 'ctrlKey'];
				self.isShiftDown = e.shiftKey;
			});
	
			$document.on('keyup' + eventNS, function(e) {
				if (e.keyCode === KEY_CTRL) self.isCtrlDown = false;
				if (e.keyCode === KEY_SHIFT) self.isShiftDown = false;
				if (e.keyCode === KEY_CMD) self.isCmdDown = false;
			});
	
			$document.on('mousedown' + eventNS, function(e) {
				if (self.isFocused) {
					// prevent events on the dropdown scrollbar from causing the control to blur
					if (e.target === self.$dropdown[0] || e.target.parentNode === self.$dropdown[0]) {
						return false;
					}
					// blur on click outside
					if (!self.$control.has(e.target).length && e.target !== self.$control[0]) {
						self.blur();
					}
				}
			});
	
			$window.on(['scroll' + eventNS, 'resize' + eventNS].join(' '), function() {
				if (self.isOpen) {
					self.positionDropdown.apply(self, arguments);
				}
			});
			$window.on('mousemove' + eventNS, function() {
				self.ignoreHover = false;
			});
	
			// store original children and tab index so that they can be
			// restored when the destroy() method is called.
			this.revertSettings = {
				$children : self.$input.children().detach(),
				tabindex  : self.$input.attr('tabindex')
			};
	
			self.$input.attr('tabindex', -1).hide().after(self.$wrapper);
	
			if ($.isArray(settings.items)) {
				self.setValue(settings.items);
				delete settings.items;
			}
	
			// feature detect for the validation API
			if (self.$input[0].validity) {
				self.$input.on('invalid' + eventNS, function(e) {
					e.preventDefault();
					self.isInvalid = true;
					self.refreshState();
				});
			}
	
			self.updateOriginalInput();
			self.refreshItems();
			self.refreshState();
			self.updatePlaceholder();
			self.isSetup = true;
	
			if (self.$input.is(':disabled')) {
				self.disable();
			}
	
			self.on('change', this.onChange);
			self.trigger('initialize');
	
			// preload options
			if (settings.preload === true) {
				self.onSearchChange('');
			}
		},
	
		/**
		 * Sets up default rendering functions.
		 */
		setupTemplates: function() {
			var self = this;
			var field_label = self.settings.labelField;
			var field_optgroup = self.settings.optgroupLabelField;
	
			var templates = {
				'optgroup': function(data) {
					return '<div class="optgroup">' + data.html + '</div>';
				},
				'optgroup_header': function(data, escape) {
					return '<div class="optgroup-header">' + escape(data[field_optgroup]) + '</div>';
				},
				'option': function(data, escape) {
					return '<div class="option">' + escape(data[field_label]) + '</div>';
				},
				'item': function(data, escape) {
					return '<div class="item">' + escape(data[field_label]) + '</div>';
				},
				'option_create': function(data, escape) {
					return '<div class="create">Add <strong>' + escape(data.input) + '</strong>&hellip;</div>';
				}
			};
	
			self.settings.render = $.extend({}, templates, self.settings.render);
		},
	
		/**
		 * Maps fired events to callbacks provided
		 * in the settings used when creating the control.
		 */
		setupCallbacks: function() {
			var key, fn, callbacks = {
				'initialize'     : 'onInitialize',
				'change'         : 'onChange',
				'item_add'       : 'onItemAdd',
				'item_remove'    : 'onItemRemove',
				'clear'          : 'onClear',
				'option_add'     : 'onOptionAdd',
				'option_remove'  : 'onOptionRemove',
				'option_clear'   : 'onOptionClear',
				'dropdown_open'  : 'onDropdownOpen',
				'dropdown_close' : 'onDropdownClose',
				'type'           : 'onType'
			};
	
			for (key in callbacks) {
				if (callbacks.hasOwnProperty(key)) {
					fn = this.settings[callbacks[key]];
					if (fn) this.on(key, fn);
				}
			}
		},
	
		/**
		 * Triggered when the main control element
		 * has a click event.
		 *
		 * @param {object} e
		 * @return {boolean}
		 */
		onClick: function(e) {
			var self = this;
	
			// necessary for mobile webkit devices (manual focus triggering
			// is ignored unless invoked within a click event)
			if (!self.isFocused) {
				self.focus();
				e.preventDefault();
			}
		},
	
		/**
		 * Triggered when the main control element
		 * has a mouse down event.
		 *
		 * @param {object} e
		 * @return {boolean}
		 */
		onMouseDown: function(e) {
			var self = this;
			var defaultPrevented = e.isDefaultPrevented();
			var $target = $(e.target);
	
			if (self.isFocused) {
				// retain focus by preventing native handling. if the
				// event target is the input it should not be modified.
				// otherwise, text selection within the input won't work.
				if (e.target !== self.$control_input[0]) {
					if (self.settings.mode === 'single') {
						// toggle dropdown
						self.isOpen ? self.close() : self.open();
					} else if (!defaultPrevented) {
						self.setActiveItem(null);
					}
					return false;
				}
			} else {
				// give control focus
				if (!defaultPrevented) {
					window.setTimeout(function() {
						self.focus();
					}, 0);
				}
			}
		},
	
		/**
		 * Triggered when the value of the control has been changed.
		 * This should propagate the event to the original DOM
		 * input / select element.
		 */
		onChange: function() {
			this.$input.trigger('change');
		},
	
		/**
		 * Triggered on <input> keypress.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyPress: function(e) {
			if (this.isLocked) return e && e.preventDefault();
			var character = String.fromCharCode(e.keyCode || e.which);
			if (this.settings.create && character === this.settings.delimiter) {
				this.createItem();
				e.preventDefault();
				return false;
			}
		},
	
		/**
		 * Triggered on <input> keydown.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyDown: function(e) {
			var isInput = e.target === this.$control_input[0];
			var self = this;
	
			if (self.isLocked) {
				if (e.keyCode !== KEY_TAB) {
					e.preventDefault();
				}
				return;
			}
	
			switch (e.keyCode) {
				case KEY_A:
					if (self.isCmdDown) {
						self.selectAll();
						return;
					}
					break;
				case KEY_ESC:
					self.close();
					return;
				case KEY_N:
					if (!e.ctrlKey) break;
				case KEY_DOWN:
					if (!self.isOpen && self.hasOptions) {
						self.open();
					} else if (self.$activeOption) {
						self.ignoreHover = true;
						var $next = self.getAdjacentOption(self.$activeOption, 1);
						if ($next.length) self.setActiveOption($next, true, true);
					}
					e.preventDefault();
					return;
				case KEY_P:
					if (!e.ctrlKey) break;
				case KEY_UP:
					if (self.$activeOption) {
						self.ignoreHover = true;
						var $prev = self.getAdjacentOption(self.$activeOption, -1);
						if ($prev.length) self.setActiveOption($prev, true, true);
					}
					e.preventDefault();
					return;
				case KEY_RETURN:
					if (self.isOpen && self.$activeOption) {
						self.onOptionSelect({currentTarget: self.$activeOption});
					}
					e.preventDefault();
					return;
				case KEY_LEFT:
					self.advanceSelection(-1, e);
					return;
				case KEY_RIGHT:
					self.advanceSelection(1, e);
					return;
				case KEY_TAB:
					if (self.isOpen && self.$activeOption) {
						self.onOptionSelect({currentTarget: self.$activeOption});
					}
					if (self.settings.create && self.createItem()) {
						e.preventDefault();
					}
					return;
				case KEY_BACKSPACE:
				case KEY_DELETE:
					self.deleteSelection(e);
					return;
			}
			if (self.isFull() || self.isInputHidden) {
				e.preventDefault();
				return;
			}
		},
	
		/**
		 * Triggered on <input> keyup.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyUp: function(e) {
			var self = this;
	
			if (self.isLocked) return e && e.preventDefault();
			var value = self.$control_input.val() || '';
			if (self.lastValue !== value) {
				self.lastValue = value;
				self.onSearchChange(value);
				self.refreshOptions();
				self.trigger('type', value);
			}
		},
	
		/**
		 * Invokes the user-provide option provider / loader.
		 *
		 * Note: this function is debounced in the Selectize
		 * constructor (by `settings.loadDelay` milliseconds)
		 *
		 * @param {string} value
		 */
		onSearchChange: function(value) {
			var self = this;
			var fn = self.settings.load;
			if (!fn) return;
			if (self.loadedSearches.hasOwnProperty(value)) return;
			self.loadedSearches[value] = true;
			self.load(function(callback) {
				fn.apply(self, [value, callback]);
			});
		},
	
		/**
		 * Triggered on <input> focus.
		 *
		 * @param {object} e (optional)
		 * @returns {boolean}
		 */
		onFocus: function(e) {
			var self = this;
	
			self.isFocused = true;
			if (self.isDisabled) {
				self.blur();
				e && e.preventDefault();
				return false;
			}
	
			if (self.ignoreFocus) return;
			if (self.settings.preload === 'focus') self.onSearchChange('');
	
			if (!self.$activeItems.length) {
				self.showInput();
				self.setActiveItem(null);
				self.refreshOptions(!!self.settings.openOnFocus);
			}
	
			self.refreshState();
		},
	
		/**
		 * Triggered on <input> blur.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onBlur: function(e) {
			var self = this;
			self.isFocused = false;
			if (self.ignoreFocus) return;
	
			if (self.settings.create && self.settings.createOnBlur) {
				self.createItem(false);
			}
	
			self.close();
			self.setTextboxValue('');
			self.setActiveItem(null);
			self.setActiveOption(null);
			self.setCaret(self.items.length);
			self.refreshState();
		},
	
		/**
		 * Triggered when the user rolls over
		 * an option in the autocomplete dropdown menu.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onOptionHover: function(e) {
			if (this.ignoreHover) return;
			this.setActiveOption(e.currentTarget, false);
		},
	
		/**
		 * Triggered when the user clicks on an option
		 * in the autocomplete dropdown menu.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onOptionSelect: function(e) {
			var value, $target, $option, self = this;
	
			if (e.preventDefault) {
				e.preventDefault();
				e.stopPropagation();
			}
	
			$target = $(e.currentTarget);
			if ($target.hasClass('create')) {
				self.createItem();
			} else {
				value = $target.attr('data-value');
				if (value) {
					self.lastQuery = null;
					self.setTextboxValue('');
					self.addItem(value);
					if (!self.settings.hideSelected && e.type && /mouse/.test(e.type)) {
						self.setActiveOption(self.getOption(value));
					}
				}
			}
		},
	
		/**
		 * Triggered when the user clicks on an item
		 * that has been selected.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onItemSelect: function(e) {
			var self = this;
	
			if (self.isLocked) return;
			if (self.settings.mode === 'multi') {
				e.preventDefault();
				self.setActiveItem(e.currentTarget, e);
			}
		},
	
		/**
		 * Invokes the provided method that provides
		 * results to a callback---which are then added
		 * as options to the control.
		 *
		 * @param {function} fn
		 */
		load: function(fn) {
			var self = this;
			var $wrapper = self.$wrapper.addClass('loading');
	
			self.loading++;
			fn.apply(self, [function(results) {
				self.loading = Math.max(self.loading - 1, 0);
				if (results && results.length) {
					self.addOption(results);
					self.refreshOptions(self.isFocused && !self.isInputHidden);
				}
				if (!self.loading) {
					$wrapper.removeClass('loading');
				}
				self.trigger('load', results);
			}]);
		},
	
		/**
		 * Sets the input field of the control to the specified value.
		 *
		 * @param {string} value
		 */
		setTextboxValue: function(value) {
			this.$control_input.val(value).triggerHandler('update');
			this.lastValue = value;
		},
	
		/**
		 * Returns the value of the control. If multiple items
		 * can be selected (e.g. <select multiple>), this returns
		 * an array. If only one item can be selected, this
		 * returns a string.
		 *
		 * @returns {mixed}
		 */
		getValue: function() {
			if (this.tagType === TAG_SELECT && this.$input.attr('multiple')) {
				return this.items;
			} else {
				return this.items.join(this.settings.delimiter);
			}
		},
	
		/**
		 * Resets the selected items to the given value.
		 *
		 * @param {mixed} value
		 */
		setValue: function(value) {
			debounce_events(this, ['change'], function() {
				this.clear();
				this.addItems(value);
			});
		},
	
		/**
		 * Sets the selected item.
		 *
		 * @param {object} $item
		 * @param {object} e (optional)
		 */
		setActiveItem: function($item, e) {
			var self = this;
			var eventName;
			var i, idx, begin, end, item, swap;
			var $last;
	
			if (self.settings.mode === 'single') return;
			$item = $($item);
	
			// clear the active selection
			if (!$item.length) {
				$(self.$activeItems).removeClass('active');
				self.$activeItems = [];
				if (self.isFocused) {
					self.showInput();
				}
				return;
			}
	
			// modify selection
			eventName = e && e.type.toLowerCase();
	
			if (eventName === 'mousedown' && self.isShiftDown && self.$activeItems.length) {
				$last = self.$control.children('.active:last');
				begin = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$last[0]]);
				end   = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$item[0]]);
				if (begin > end) {
					swap  = begin;
					begin = end;
					end   = swap;
				}
				for (i = begin; i <= end; i++) {
					item = self.$control[0].childNodes[i];
					if (self.$activeItems.indexOf(item) === -1) {
						$(item).addClass('active');
						self.$activeItems.push(item);
					}
				}
				e.preventDefault();
			} else if ((eventName === 'mousedown' && self.isCtrlDown) || (eventName === 'keydown' && this.isShiftDown)) {
				if ($item.hasClass('active')) {
					idx = self.$activeItems.indexOf($item[0]);
					self.$activeItems.splice(idx, 1);
					$item.removeClass('active');
				} else {
					self.$activeItems.push($item.addClass('active')[0]);
				}
			} else {
				$(self.$activeItems).removeClass('active');
				self.$activeItems = [$item.addClass('active')[0]];
			}
	
			// ensure control has focus
			self.hideInput();
			if (!this.isFocused) {
				self.focus();
			}
		},
	
		/**
		 * Sets the selected item in the dropdown menu
		 * of available options.
		 *
		 * @param {object} $object
		 * @param {boolean} scroll
		 * @param {boolean} animate
		 */
		setActiveOption: function($option, scroll, animate) {
			var height_menu, height_item, y;
			var scroll_top, scroll_bottom;
			var self = this;
	
			if (self.$activeOption) self.$activeOption.removeClass('active');
			self.$activeOption = null;
	
			$option = $($option);
			if (!$option.length) return;
	
			self.$activeOption = $option.addClass('active');
	
			if (scroll || !isset(scroll)) {
	
				height_menu   = self.$dropdown_content.height();
				height_item   = self.$activeOption.outerHeight(true);
				scroll        = self.$dropdown_content.scrollTop() || 0;
				y             = self.$activeOption.offset().top - self.$dropdown_content.offset().top + scroll;
				scroll_top    = y;
				scroll_bottom = y - height_menu + height_item;
	
				if (y + height_item > height_menu + scroll) {
					self.$dropdown_content.stop().animate({scrollTop: scroll_bottom}, animate ? self.settings.scrollDuration : 0);
				} else if (y < scroll) {
					self.$dropdown_content.stop().animate({scrollTop: scroll_top}, animate ? self.settings.scrollDuration : 0);
				}
	
			}
		},
	
		/**
		 * Selects all items (CTRL + A).
		 */
		selectAll: function() {
			var self = this;
			if (self.settings.mode === 'single') return;
	
			self.$activeItems = Array.prototype.slice.apply(self.$control.children(':not(input)').addClass('active'));
			if (self.$activeItems.length) {
				self.hideInput();
				self.close();
			}
			self.focus();
		},
	
		/**
		 * Hides the input element out of view, while
		 * retaining its focus.
		 */
		hideInput: function() {
			var self = this;
	
			self.setTextboxValue('');
			self.$control_input.css({opacity: 0, position: 'absolute', left: self.rtl ? 10000 : -10000});
			self.isInputHidden = true;
		},
	
		/**
		 * Restores input visibility.
		 */
		showInput: function() {
			this.$control_input.css({opacity: 1, position: 'relative', left: 0});
			this.isInputHidden = false;
		},
	
		/**
		 * Gives the control focus. If "trigger" is falsy,
		 * focus handlers won't be fired--causing the focus
		 * to happen silently in the background.
		 *
		 * @param {boolean} trigger
		 */
		focus: function() {
			var self = this;
			if (self.isDisabled) return;
	
			self.ignoreFocus = true;
			self.$control_input[0].focus();
			window.setTimeout(function() {
				self.ignoreFocus = false;
				self.onFocus();
			}, 0);
		},
	
		/**
		 * Forces the control out of focus.
		 */
		blur: function() {
			this.$control_input.trigger('blur');
		},
	
		/**
		 * Returns a function that scores an object
		 * to show how good of a match it is to the
		 * provided query.
		 *
		 * @param {string} query
		 * @param {object} options
		 * @return {function}
		 */
		getScoreFunction: function(query) {
			return this.sifter.getScoreFunction(query, this.getSearchOptions());
		},
	
		/**
		 * Returns search options for sifter (the system
		 * for scoring and sorting results).
		 *
		 * @see https://github.com/brianreavis/sifter.js
		 * @return {object}
		 */
		getSearchOptions: function() {
			var settings = this.settings;
			var sort = settings.sortField;
			if (typeof sort === 'string') {
				sort = {field: sort};
			}
	
			return {
				fields      : settings.searchField,
				conjunction : settings.searchConjunction,
				sort        : sort
			};
		},
	
		/