/* *	jquery.suggest 1.1b - 2007-08-06 * Patched by Mark Jaquith with Alexander Dick's "multiple items" patch to allow for auto-suggesting of more than one tag before submitting * See: http://www.vulgarisoip.com/2007/06/29/jquerysuggest-an-alternative-jquery-based-autocomplete-library/#comment-7228 *	 *	Uses code and techniques from following libraries: *	1. http://www.dyve.net/jquery/?autocomplete *	2. http://dev.jquery.com/browser/trunk/plugins/interface/iautocompleter.js	 * *	All the new stuff written by Peter Vulgaris (www.vulgarisoip.com)	 *	Feel free to do whatever you want with this file * */(function($) {	$.suggest = function(input, options) {		var $input = $(input).attr("autocomplete", "off");		var $results = $(document.createElement("ul"));		var timeout = false;		// hold timeout ID for suggestion results to appear			var prevLength = 0;			// last recorded length of $input.val()		var cache = [];				// cache MRU list		var cacheSize = 0;			// size of cache in chars (bytes?)				$results.addClass(options.resultsClass).appendTo('body');					resetPosition();		$(window)			.load(resetPosition)		// just in case user is changing size of page while loading			.resize(resetPosition);		$input.blur(function() {			setTimeout(function() { $results.hide() }, 200);		});						// help IE users if possible		try {			$results.bgiframe();		} catch(e) { }		// I really hate browser detection, but I don't see any other way		if ($.browser.mozilla)			$input.keypress(processKey);	// onkeypress repeats arrow keys in Mozilla/Opera		else			$input.keydown(processKey);		// onkeydown repeats arrow keys in IE/Safari				function resetPosition() {			// requires jquery.dimension plugin			var offset = $input.offset();			$results.css({				top: (offset.top + input.offsetHeight) + 'px',				left: offset.left + 'px'			});		}						function processKey(e) {						// handling up/down/escape requires results to be visible			// handling enter/tab requires that AND a result to be selected			if ((/27$|38$|40$/.test(e.keyCode) && $results.is(':visible')) ||				(/^13$|^9$/.test(e.keyCode) && getCurrentResult())) {								if (e.preventDefault)					e.preventDefault();				if (e.stopPropagation)					e.stopPropagation();				e.cancelBubble = true;				e.returnValue = false;							switch(e.keyCode) {					case 38: // up						prevResult();						break;								case 40: // down						nextResult();						break;					case 9:  // tab					case 13: // return						selectCurrentResult();						break;											case 27: //	escape						$results.hide();						break;				}							} else if ($input.val().length != prevLength) {				if (timeout) 					clearTimeout(timeout);				timeout = setTimeout(suggest, options.delay);				prevLength = $input.val().length;							}												}						function suggest() {					var q = $.trim($input.val());			if ( options.multiple ) {				var multipleSepPos = q.lastIndexOf(options.multipleSep);				if ( multipleSepPos != -1 ) {					q = q.substr(multipleSepPos + options.multipleSep.length);				}			}			if (q.length >= options.minchars) {								cached = checkCache(q);								if (cached) {									displayItems(cached['items']);									} else {									$.get(options.source, {q: q}, function(txt) {						$results.hide();												var items = parseTxt(txt, q);												displayItems(items);						addToCache(q, items, txt.length);											});									}							} else {							$results.hide();							}						}						function checkCache(q) {			for (var i = 0; i < cache.length; i++)				if (cache[i]['q'] == q) {					cache.unshift(cache.splice(i, 1)[0]);					return cache[0];				}						return false;				}				function addToCache(q, items, size) {			while (cache.length && (cacheSize + size > options.maxCacheSize)) {				var cached = cache.pop();				cacheSize -= cached['size'];			}						cache.push({				q: q,				size: size,				items: items				});							cacheSize += size;				}				function displayItems(items) {						if (!items)				return;							if (!items.length) {				$results.hide();				return;			}			resetPosition(); // when the form moves after the page has loaded			var html = '';			for (var i = 0; i < items.length; i++)				html += '<li>' + items[i] + '</li>';			$results.html(html).show();						$results				.children('li')				.mouseover(function() {					$results.children('li').removeClass(options.selectClass);					$(this).addClass(options.selectClass);				})				.click(function(e) {					e.preventDefault(); 					e.stopPropagation();					selectCurrentResult();				});								}				function parseTxt(txt, q) {						var items = [];			var tokens = txt.split(options.delimiter);						// parse returned data for non-empty items			for (var i = 0; i < tokens.length; i++) {				var token = $.trim(tokens[i]);				if (token) {					token = token.replace(						new RegExp(q, 'ig'), 						function(q) { return '<span class="' + options.matchClass + '">' + q + '</span>' }						);					items[items.length] = token;				}			}						return items;		}				function getCurrentResult() {					if (!$results.is(':visible'))				return false;					var $currentResult = $results.children('li.' + options.selectClass);						if (!$currentResult.length)				$currentResult = false;							return $currentResult;		}				function selectCurrentResult() {					$currentResult = getCurrentResult();					if ($currentResult) {				if ( options.multiple ) {					if ( $input.val().indexOf(options.multipleSep) != -1 ) {						$currentVal = $input.val().substr( 0, ( $input.val().lastIndexOf(options.multipleSep) + options.multipleSep.length ) );					} else {						$currentVal = "";					}					$input.val( $currentVal + $currentResult.text() + options.multipleSep);					$input.focus();				} else {					$input.val($currentResult.text());				}				$results.hide();								if (options.onSelect)					options.onSelect.apply($input[0]);								}				}				function nextResult() {					$currentResult = getCurrentResult();					if ($currentResult)				$currentResult					.removeClass(options.selectClass)					.next()						.addClass(options.selectClass);			else				$results.children('li:first-child').addClass(options.selectClass);				}				function prevResult() {					$currentResult = getCurrentResult();					if ($currentResult)				$currentResult					.removeClass(options.selectClass)					.prev()						.addClass(options.selectClass);			else				$results.children('li:last-child').addClass(options.selectClass);				}	}		$.fn.suggest = function(source, options) {			if (!source)			return;			options = options || {};		options.multiple = options.multiple || false;		options.multipleSep = options.multipleSep || ", ";		options.source = source;		options.delay = options.delay || 100;		options.resultsClass = options.resultsClass || 'ac_results';		options.selectClass = options.selectClass || 'ac_over';		options.matchClass = options.matchClass || 'ac_match';		options.minchars = options.minchars || 2;		options.delimiter = options.delimiter || '\n';		options.onSelect = options.onSelect || false;		options.maxCacheSize = options.maxCacheSize || 65536;		this.each(function() {			new $.suggest(this, options);		});		return this;			};	})(jQuery);