jQuery.autocomplete = function(p_input, options) {
//	var debugPanel = document.createElement("div");
//	var $debugPnl = $(debugPanel).css({position:"absolute", width:"500px", height:"300px", top:"500px", left:"190px", zIndex:"1000", backgroundColor:"#fff"});
//	$debugPnl.html("");
//	$("body").append(debugPanel);

//	$debugPnl.html($debugPnl.html() + "<br>results has focus. mouseDownOnSelect=[" + mouseDownOnSelect + "]");

	// Create a link to self
	//var me = this;

	// Create jQuery object for input element
	p_input.autocomplete = "off";

	// Apply inputClass if necessary
	//if (options.inputClass) {
	//	p_input.className = options.inputClass;
	//}

	//p_input.autocompleter = me;

	var timeout = null;
	var prev = "";
	var active = -1;
	var cache = {};
	var keyb = false;
	var hasFocus = false;
	var lastKeyPressCode = null;
	var mouseDownOnSelect = false;
	var hidingResults = false;
	var currItem = null;
	var resultFrame = null;

	// Create results
	var results = document.createElement("span");

	// Create jQuery object for results
	var $results = $(results).hide().addClass(options.resultsClass).css({position:"absolute", textAlign:"left", cursor:"pointer", paddingLeft:"3px"});
	// get the position of the input field right now (in case the DOM is shifted)
	var pos = findPos(p_input);
	// either use the specified width, or autocalculate based on form element
	var iWidth = (options.width > 0) ? options.width : p_input.offsetWidth;
	// reposition

	var plusiLeft = (document.body.clientWidth-1000)/2+300;

	$results.css({
		color: "#FFFFFF",
		width: iWidth+85+ "px",
		height: "200px",
		top: (pos.y + p_input.offsetHeight)+3 + "px",
		left: pos.x-4 + "px",
		overflow: "auto",
		zIndex: 3000,
		display: "none"
	});

	if ($.browser.msie) {
		// we put a styled iframe behind the calendar so HTML SELECT elements don't show through
		resultFrame = document.createElement('iframe');
		resultFrame.style.color = results.style.color;
		resultFrame.style.position = results.style.position;
		resultFrame.style.width = results.style.width;
		resultFrame.style.height = results.style.height;
		resultFrame.style.top = results.style.top;
		resultFrame.style.left = results.style.left;
		resultFrame.style.zIndex = results.style.zIndex;
		resultFrame.border = 0;
		resultFrame.frameBorder = 0;
		resultFrame.style.display = "none";

		$("body").append(resultFrame);
	}

	results.onfocus = function() {
		mouseDownOnSelect = true;
		if (timeout)
		{
			clearTimeout(timeout);
			timeout = null;
		}
	};

	results.onblur = function() {
		mouseDownOnSelect = false;
		if (!hasFocus) {
			hideResults();
		}
	};

	// Add to body element
	$("body").append(results);

	// flush cache
	function flushCache(){
		cache = {};
		cache.data = {};
		cache.length = 0;
	};

	// flush cache
	flushCache();

	// if there is a data array supplied
	if( options.data != null ){
		var sFirstChar = "", stMatchSets = {}, row = [];

		// no url was specified, we need to adjust the cache length to make sure it fits the local data store
		if( typeof options.url != "string" ) {
			options.cacheLength = 1;
		}

		// loop through the array and create a lookup structure
		for( var i=0; i < options.data.length; i++ ){
			// if row is a string, make an array otherwise just reference the array
			row = ((typeof options.data[i] == "string") ? [options.data[i]] : options.data[i]);

			// if the length is zero, don't add to list
			if( row[0].length > 0 ){
				// get the first character
				sFirstChar = row[0].substring(0, 1).toLowerCase();
				// if no lookup array for this character exists, look it up now
				if( !stMatchSets[sFirstChar] ) stMatchSets[sFirstChar] = [];
				// if the match is a string
				stMatchSets[sFirstChar].push(row);
			}
		}

		// add the data items to the cache
		for( var k in stMatchSets ) {
			// increase the cache size
			options.cacheLength++;
			// add to the cache
			addToCache(k, stMatchSets[k]);
		}
	}

	$(p_input)
	.keyup(function(e) {
		// page Loading 중에 input에 focus를 주면 onfocus 이벤트가 발생하지 않아
		// hasFocus가 설정이 안되는 경우가 있으므로 keyup 이벤트 핸들러에서 한번 더 설정하여 줌.
		hasFocus = true;
		// track last key pressed
		lastKeyPressCode = e.keyCode;
		switch(e.keyCode) {
			case 38: // up
				e.preventDefault();
				moveSelect(-1);
				break;
			case 40: // down
				e.preventDefault();
				moveSelect(1);
				break;
			case 9:  // tab
			case 13: // return
				if( selectCurrent() ){
					// make sure to blur off the current field
					p_input.blur();
					e.preventDefault();
				}
				break;
			default:
				active = -1;
//				$debugPnl.html($debugPnl.html() + "<br>setTimeout at keyup event[Call onChange()]");
				if (timeout) clearTimeout(timeout);
				timeout = setTimeout(function(){onChange();}, options.delay);
				break;
		}
	})
	.focus(function(){
		// track whether the field has focus, we shouldn't process any results if the field no longer has focus
		hasFocus = true;
		// results 창이 focus를 잃고 입력창으로 focus가 이동됐을 때 results 창이 닫히게 할려면 아래 if를 주석으로 막는다.
		if (timeout)
		{
			clearTimeout(timeout);
			timeout = null;
		}
	})
	.blur(function() {
		// track whether the field has focus
		hasFocus = false;
		if (!mouseDownOnSelect) {
			hideResults();
		}
	});

	hideResultsNow();

	var waitResponse = false;
	var chgKey = "";
	function onChange() {
		clearTimeout(timeout);
		timeout = null;
		// ignore if the following keys are pressed: [del] [shift] [capslock]
		var v = p_input.value;

		if (v == prev) return;
		prev = v;
		if (v.length >= options.minChars) {
			if (!waitResponse)
			{
				// 홍재훈 20071116
				if (results.style.visibility != 'visible')
				{
					results.innerHTML = "";
					showResults();
					$("#search_help_box").slideDown("fast").css('margin-top','128px');
				}
				requestData(v);
			}
			else
			{
				chgKey = v;
			}
		} else {
			$results.hide();
			if (resultFrame)
			{
				resultFrame.style.display = "none";
				$("#search_help_box").hide().css('margin-top','-10px');
			}
		}
	};

 	function moveSelect(step) {
		currItem.className = "";
		var items = $("div", results);
		if (!items) return;

		active += step;

		if (active < 0) {
			active = -1;
			currItem = items[0];
			p_input.value = prev;
			return;
		} else if (active >= items.size()) {
			active = items.size() - 1;
		}

		currItem = items[active];
		currItem.className = "ac_over_Main";
		if (options.fillCurrItem) p_input.value = currItem.selectValue ? currItem.selectValue : currItem.innerHTML;

		// Weird behaviour in IE
		if (items[active] && items[active].scrollIntoView) {
			if (step == -1)
			{
				if ($results[0].scrollTop > items[active].offsetTop)
				{
					$results[0].scrollTop = items[active].offsetTop;
				}
			}
			else
			{
				if ( (($results[0].scrollTop + $results[0].offsetHeight) < (items[active].offsetTop + items[active].offsetHeight)) )
				{
					items[active].scrollIntoView(false);
				}
			}
		}
	};

	function selectCurrent() {
		var selItem = $("div.ac_over_Main", results)[0];
		if (!selItem) {
			var $selItem = $("div", results);
			if (options.selectOnly) {
				if ($selItem.length == 1) selItem = $selItem[0];
			} else if (options.selectFirst) {
				selItem = $selItem[0];
			}
		}
		if (selItem) {
			selectItem(selItem);
			return true;
		} else {
			return false;
		}
	};

	function selectItem(p_selItem) {
		if (!p_selItem) {
			p_selItem = document.createElement("div");
			p_selItem.extra = [];
			p_selItem.selectValue = "";
		}
		var v = $.trim(p_selItem.selectValue ? p_selItem.selectValue : p_selItem.innerHTML);
		p_input.lastSelected = v;
		prev = v;
		$results.html("");
		p_input.value = v;
		hideResultsNow();
		if (options.onItemSelect) {
			//timeout = setTimeout(function() { if (timeout) clearTimeout(timeout); options.onItemSelect(p_selItem) }, 10);
			options.onItemSelect(p_selItem);
		}
	};

	// selects a portion of the input string
	function createSelection(start, end){
		// get a reference to the input element
		var field = p_input;
		if( field.createTextRange ){
			var selRange = field.createTextRange();
			selRange.collapse(true);
			selRange.moveStart("character", start);
			selRange.moveEnd("character", end);
			selRange.select();
		} else if( field.setSelectionRange ){
			field.setSelectionRange(start, end);
		} else {
			if( field.selectionStart ){
				field.selectionStart = start;
				field.selectionEnd = end;
			}
		}
		field.focus();
	};

	// fills in the input box w/the first match (assumed to be the best match)
	function autoFill(sValue){
		// if the last user key pressed was backspace, don't autofill
		if( lastKeyPressCode != 8 ){
			// fill in the value (keep the case the user has typed)
			p_input.value = p_input.value + sValue.substring(prev.length);
			// select the portion of the value not typed by the user (so the next character will erase)
			createSelection(prev.length, sValue.length);
		}
	};

	function showResults() {
//		// get the position of the input field right now (in case the DOM is shifted)
//		var pos = findPos(p_input);
//		// either use the specified width, or autocalculate based on form element
//		var iWidth = (options.width > 0) ? options.width : p_input.offsetWidth;
//		// reposition
//
//		if (resultFrame) {
//			// we put a styled iframe behind the calendar so HTML SELECT elements don't show through
//			//$results.append(document.createElement('iframe'));
//			resultFrame.style.width = iWidth + "px";
//			resultFrame.style.height = "200px";
//			resultFrame.style.top = (pos.y + p_input.offsetHeight) + "px";
//			resultFrame.style.left = pos.x + "px";
//			resultFrame.style.zIndex = 0;
//		}
//
//		$results.css({
//			width: iWidth + "px",
//			top: (pos.y + p_input.offsetHeight) + "px",
//			left: pos.x + "px",
//			height: "200px",
//			overflow: "auto"
//		}).show();
		if (resultFrame)
		{
			resultFrame.style.display = "";
		}
		results.style.display = "";
	};

	function hideResults() {
//		$debugPnl.html($debugPnl.html() + "<br>setTimeout in hideResults event[Call hideResultsNow()]");
		if (timeout) clearTimeout(timeout);
		timeout = setTimeout(hideResultsNow, 200);
	};

	function hideResultsNow() {
		if (hidingResults) {
			return;
		}
		hidingResults = true;
	
		if (timeout) {
			clearTimeout(timeout);
			timeout = null;
		}

		var v = p_input.value;
		
		if ($results.is(":visible")) {
			//$results.hide();
			results.style.display = "none";
			$("#search_help_box").hide().css('margin-top','-10px');
			if (resultFrame)
			{
				resultFrame.style.display = "none";
			}
		}
		
		if (options.mustMatch) {
			if (!p_input.lastSelected || p_input.lastSelected != v) {
				selectItem(null);
			}
		}

		currItem = null;

		hidingResults = false;
	};

	function receiveData(q, data) {
		if (data) {
			results.innerHTML = "";

			// if the field no longer has focus or if there are no matches, do not display the drop down
			if( !hasFocus || data.length == 0 ) {
				return hideResultsNow();
			}

			setSuggestList(data, results);
			// autofill in the complete box w/the first match as long as the user hasn't entered in more data
			if( options.autoFill && (p_input.value.toLowerCase() == q.toLowerCase()) ) autoFill(data[0][0]);
		} else {
			hideResultsNow();
		}
	};

	function parseData(data) {
		if (!data) return null;
		var parsed = [];
		var rows = data.split(options.lineSeparator);
		for (var i=0; i < rows.length; i++) {
			var row = $.trim(rows[i]);
			if (row) {
				parsed[parsed.length] = row.split(options.cellSeparator);
			}
		}
		return parsed;
	};

	function setSuggestList(p_data, p_resultFrame) {
		var num = p_data.length;

		// limited results to a max number
		if( (options.maxItemsToShow > 0) && (options.maxItemsToShow < num) ) num = options.maxItemsToShow;

		var expStr = (options.matchContains ? "" : "^") + prev;
		var regExp = new RegExp(expStr, options.matchCase ? "" : "i");

		for (var i=0; i < num; i++) {
			var row = p_data[i];
			if (!row) continue;
			if (row.length > 1) {
				extra = [];
				for (var j=1; j < row.length; j++) {
					extra[extra.length] = row[j];
				}
			}

			var suggItem = document.createElement("div");
			suggItem.name = String(i);
			suggItem.extra = extra;

			suggItem.onmouseover = function(p_event)
			{
			//$(suggItem).mouseover(function(p_event) {
//				if (timeout)
//				{
//					$debugPnl.html($debugPnl.html() + "<br>setted timeout!!!");
//				}
				currItem.className = "";

				active = parseInt(this.name,10);
				this.className = "ac_over_Main";
				currItem = this;
			};

			suggItem.onclick = function()
			{
				selectItem(this);
			};
			
			suggItem.style.paddingLeft = "5px";
			suggItem.style.color = "#FFFFFF";
			suggItem.style.width = "100%";
			suggItem.style.textAlign = "left";

			var dispStr = "";
			if (options.formatItem) {
				dispStr = replaceEntityToChar(options.formatItem(row, i, num));
				suggItem.selectValue = replaceEntityToChar(row[0]);
			} else {
				dispStr = replaceEntityToChar(row[0]);
				suggItem.selectValue = replaceEntityToChar(row[0]);
			}

			var matchedPos = dispStr.search(regExp);
			var matchedText = dispStr.substring(matchedPos, matchedPos + prev.length);

			suggItem.innerHTML = dispStr.replace(regExp, "<span style='color:#9BB1BC; font-weight:bold;'>"+matchedText+"</span>");

			//results.appendChild(suggItem);
			p_resultFrame.appendChild(suggItem);
		}

		currItem = p_resultFrame.firstChild;
	};

	function requestData(q) {
		if (waitResponse)
		{
			return;
		}

		waitResponse = true;
		chgKey = "";

		if (!options.matchCase) q = q.toLowerCase();
		var data = options.cacheLength ? loadFromCache(q) : null;
		// recieve the cached data
		if (data) {
			receiveData(q, data);
			waitResponse = false;
			chgKey = "";
		// if an AJAX url has been supplied, try loading the data now
		} else if( (typeof options.url == "string") && (options.url.length > 0) ){
			$.ajax({
				url: makeUrl(q),
				type: 'GET',
				data: '',
				dataType: 'html',
				async: true,
				//timeout: 3000,
				error: function() {
					waitResponse = false;
				},
				success: function(p_data) {
					data = parseData(p_data);
					addToCache(q, data);
					if (chgKey != "")
					{
						data = options.cacheLength ? loadFromCache(chgKey) : null;
						receiveData(chgKey, data);
					}
					else
					{
						receiveData(q, data);
					}

					waitResponse = false;
				}
			});

//				$.get(makeUrl(q), function(data) {
//					data = parseData(data);
//					addToCache(q, data);
//					if (chgKey != "")
//					{
//						data = options.cacheLength ? loadFromCache(chgKey) : null;
//						receiveData(chgKey, data);
//					}
//					else
//					{
//						receiveData(q, data);
//					}
//
//					waitResponse = false;
//				});
		// if there's been no data found, remove the loading class
		} else {
			waitResponse = false;
			chgKey = "";
		}
	};

	function makeUrl(q) {
		var sep = options.url.indexOf('?') == -1 ? '?' : '&'; 
		var url = options.url + sep + "q=" + encodeURI(q);
		for (var i in options.extraParams) {
			url += "&" + i + "=" + encodeURI(options.extraParams[i]);
		}
		return url;
	};

	function loadFromCache(q) {
		if (!q) return null;
		if (cache.data[q]) return cache.data[q];
		if (options.matchSubset) {
			for (var i = q.length - 1; i >= options.minChars; i--) {
				var qs = q.substr(0, i);
				var c = cache.data[qs];
				if (c) {
					var csub = [];
					for (var j = 0; j < c.length; j++) {
						var x = c[j];
						var x0 = x[0];
						if (matchSubset(x0, q)) {
							csub[csub.length] = x;
						}
					}
					return csub;
				}
			}
		}
		return null;
	};

	function matchSubset(s, sub) {
		if (!options.matchCase) s = s.toLowerCase();
		var i = s.indexOf(replaceCharToEntity(sub));
		if (i == -1) return false;
		return i == 0 || options.matchContains;
	};

	this.flushCache = function() {
		flushCache();
	};

	this.setExtraParams = function(p) {
		options.extraParams = p;
	};

	this.findValue = function(){
		var q = p_input.value;

		if (!options.matchCase) q = q.toLowerCase();
		var data = options.cacheLength ? loadFromCache(q) : null;
		if (data) {
			findValueCallback(q, data);
		} else if( (typeof options.url == "string") && (options.url.length > 0) ){
			$.get(makeUrl(q), function(data) {
				data = parseData(data)
				addToCache(q, data);
				findValueCallback(q, data);
			});
		} else {
			// no matches
			findValueCallback(q, null);
		}
	}

	function findValueCallback(q, data){
		var num = (data) ? data.length : 0;
		var li = null;

		for (var i=0; i < num; i++) {
			var row = data[i];

			if( row[0].toLowerCase() == q.toLowerCase() ){
				li = document.createElement("li");
				if (options.formatItem) {
					li.innerHTML = options.formatItem(row, i, num);
					li.selectValue = row[0];
				} else {
					li.innerHTML = row[0];
					li.selectValue = row[0];
				}
				var extra = null;
				if( row.length > 1 ){
					extra = [];
					for (var j=1; j < row.length; j++) {
						extra[extra.length] = row[j];
					}
				}
				li.extra = extra;
			}
		}

//		$debugPnl.html($debugPnl.html() + "<br>setTimeout in findValueCallback[Call options.onFindValue()]");
		if( options.onFindValue ) setTimeout(function() { options.onFindValue(li) }, 1);
	}

	function addToCache(q, data) {
		if (!data || !q || !options.cacheLength) return;
		if (!cache.length || cache.length > options.cacheLength) {
			flushCache();
			cache.length++;
		} else if (!cache[q]) {
			cache.length++;
		}
		cache.data[q] = data;
	};

	function findPos(obj) {
		var curleft = obj.offsetLeft || 0;
		var curtop = obj.offsetTop || 0;
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
		return {x:curleft,y:curtop};
	}

	function replaceEntityToChar(_data)
	{
		var result = _data.replace(/&#39;/g, "'").replace(/&quot;/g, "\"").replace(/&#43;/g, "+");
		return result;
	}

	function replaceCharToEntity(_data)
	{
		var result = _data.replace(/\'/g, "&#39;").replace(/\"/g, "&quot;").replace(/\+/g, "&#43;");
		return result;
	}
}

jQuery.fn.autocomplete = function(url, options, data) {
	// Make sure options exists
	options = options || {};
	// Set url as option
	options.url = url;
	// set some bulk local data
	options.data = ((typeof data == "object") && (data.constructor == Array)) ? data : null;

	// Set default values for required options
	options.inputClass = options.inputClass || "ac_input";
	options.resultsClass = options.resultsClass || "ac_results_Main";
	options.lineSeparator = options.lineSeparator || "\n";
	options.cellSeparator = options.cellSeparator || "|";
	options.minChars = options.minChars || 1;
	options.delay = options.delay || 400;
	options.matchCase = options.matchCase || 0;
	options.matchSubset = options.matchSubset || 1;
	options.matchContains = options.matchContains || 0;
	options.cacheLength = options.cacheLength || 1;
	options.mustMatch = options.mustMatch || 0;
	options.extraParams = options.extraParams || {};
	options.selectFirst = options.selectFirst || false;
	options.selectOnly = options.selectOnly || false;
	options.maxItemsToShow = options.maxItemsToShow || -1;
	options.autoFill = options.autoFill || false;
	options.width = parseInt(options.width, 10) || 0;
	options.fillCurrItem = options.fillCurrItem || false;

	this.each(function() {
		var input = this;
		new jQuery.autocomplete(input, options);
	});

	// Don't break the chain
	return this;
}

jQuery.fn.autocompleteArray = function(data, options) {
	return this.autocomplete(null, options, data);
}

jQuery.fn.indexOf = function(e){
	for( var i=0; i<this.length; i++ ){
		if( this[i] == e ) return i;
	}
	return -1;
};