if (typeof(tbsn) == "undefined")
{
	_tb = tbsn = {};
}

if (typeof(_tb.Autosuggest) == "undefined")
{	_tb.Autosuggest = {};
}
else
{
	alert("Autosuggest is already set!");
}

_tb.AutoSuggest = function (id, param)
{
	// no DOM - give up!
	//
	if (!document.getElementById){return 0;}
		
	// get field via DOM
	//
	this.fld = _tb.DOM.gE(id);

	if (!this.fld){ return 0;}
	
	// init variables
	//
	this.sInp 	= "";
	this.nInpC 	= 0;
	this.aSug 	= [];
	this.iHigh 	= 0;
	
	// parameters object
	//
	this.oP = param ? param : {};
	
	// defaults	
	//
	var k, def = {minchars:1, meth:"get", varname:"input", className:"autosuggest", timeout:5000, delay:500, offsety:-5, shownoresults: true, noresults: "No results!", maxheight: 250, cache: true, maxentries: 25,fixwidth:0};
	for (k in def)
	{
		if (typeof(this.oP[k]) != typeof(def[k]))
		{
			this.oP[k] = def[k];
		}
	}	
	// set keyup handler for field
	// and prevent autocomplete from client
	//
	var p = this;
	
	// NOTE: not using addEventListener because UpArrow fired twice in Safari
	//_tb.DOM.addEvent( this.fld, 'keyup', function(ev){ return pointer.onKeyPress(ev); } );
	
	this.fld.onkeypress 	= function(ev){ return p.onKeyPress(ev); };
	this.fld.onkeyup 		= function(ev){ return p.onKeyUp(ev); };
	
	this.fld.setAttribute("autocomplete","off");
};

_tb.AutoSuggest.prototype.onKeyPress = function(ev)
{
	var key = (window.event) ? window.event.keyCode : ev.keyCode;
	// set responses to keydown events in the field
	// this allows the user to use the arrow keys to scroll through the results
	// ESCAPE clears the list
	// TAB sets the current highlighted value
	//
	var RETURN = 13;
	var TAB = 9;
	var ESC = 27;
	var bubble = 1;
	switch(key)
	{
		case RETURN:
		{
			this.setHighlightedValue();
			bubble = 0;
			break;
		}

		case ESC:
		{
			this.clearSuggestions();
			break;
		}
	}
	return bubble;
};

_tb.AutoSuggest.prototype.onKeyUp = function(ev)
{
	var key = (window.event) ? window.event.keyCode : ev.keyCode;
	// set responses to keydown events in the field
	// this allows the user to use the arrow keys to scroll through the results
	// ESCAPE clears the list
	// TAB sets the current highlighted value
	//
	var ARRUP = 38;
	var ARRDN = 40;
	var bubble = 1;
	switch(key)
	{
		case ARRUP:
		{
			this.changeHighlight(key);
			bubble = 0;
			break;
		}
		case ARRDN:
		{
			this.changeHighlight(key);
			bubble = 0;
			break;
		}
		default:
		{
			this.getSuggestions(this.fld.value);
		}
	}
	return bubble;
};

_tb.AutoSuggest.prototype.getSuggestions = function (val)
{
	// if input stays the same, do nothing
	//
	if (val == this.sInp){ return 0;}
	
	// kill list
	//
	_tb.DOM.remE(this.idAs);
		
	this.sInp = val;
		
	// input length is less than the min required to trigger a request
	// do nothing
	//
	if (val.length < this.oP.minchars)
	{
		this.aSug = [];
		this.nInpC = val.length;
		return 0;
	}
		
	var ol = this.nInpC; // old length
	this.nInpC = val.length ? val.length : 0;
		
	// if caching enabled, and user is typing (ie. length of input is increasing)
	// filter results out of aSuggestions from last request
	//
	var l = this.aSug.length;
	if (this.nInpC > ol && l && l<this.oP.maxentries && this.oP.cache)
	{
		var arr = [];
		for (var i=0;i<l;i++)
		{
			//if (this.aSug[i].value.substr(0,val.length).toLowerCase() == val.toLowerCase())
			if(this.aSug[i].value.toLowerCase().indexOf(' ' + val.toLowerCase()) > -1)
			{
				arr.push(this.aSug[i]);
			}
		}
		this.aSug = arr;
		this.createList(this.aSug);
		return false;
	}
	else
	// do new request
	//
	{
		var pointer = this;
		var input = this.sInp;
		clearTimeout(this.ajID);
		this.ajID = setTimeout( function() { pointer.setSuggestions(input) }, this.oP.delay );
	}

	return false;
};


// added by Toannh.
_tb.AutoSuggest.prototype.suggestFilter = function (strSearch, maxResult)
{
	var arrRe = new Array();
	var arrStreet = new Array();
	var arrPrecinct = new Array();
	var arrDistrict = new Array();
	var countResult = 0;
	var streetLen = sug_data_street.length;
	var i= 0;
	var j=0;
	var idx = 0;
	var strLowerIn = '';
	var strSearchLower = strSearch.toLowerCase();
	for(i=0,j=0;i<streetLen;i++)
	{
		strLowerIn = sug_data_street[i][0].toLowerCase();
		idx = strLowerIn.indexOf(strSearchLower);
		if(idx > -1)
		{
			arrStreet[j] = new Array();
			arrStreet[j][0] = idx;
			arrStreet[j][1] = i;
			countResult++;
			j++;
		}
	}
	if(countResult > 0)
	{
		arrStreet.sort(function(a,b){return a[0] - b[0];});
	}
		
	countResult = 0;
	for(i=0;i<arrStreet.length;i++)
	{
		if(countResult >= maxResult){ break;}
		if(sug_data_street[arrStreet[i][1]][1] != '')
		{
			arrRe.push({ 'id':arrStreet[i][1], 'value':sug_data_street[arrStreet[i][1]][0] , 'info':'' });
		}
		else
		{
			arrRe.push({ 'id':arrStreet[i][1], 'value':sug_data_street[arrStreet[i][1]][0] , 'info':'' });
		}
		countResult++;
	}
	if(countResult < maxResult)
	{
		for(i=0;i<arrPrecinct.length;i++)
		{
			if(countResult >= maxResult){ break;}
			arrRe.push({ 'id':arrPrecinct[i][1], 'value':sug_data_precinct[arrPrecinct[i][1]][0], 'info':'' });
			countResult++;
		}
	}
	if(countResult < maxResult)
	{
		for(i=0;i<arrDistrict.length;i++)
		{
			if(countResult >= maxResult){ break;}
			arrRe.push({ 'id':arrDistrict[i][1], 'value':sug_data_district[arrDistrict[i][1]] , 'info':'' });
			countResult++;
		}
	}
	return arrRe;
};
//_tb.AutoSuggest.prototype.setSuggestions = function (req, input)
_tb.AutoSuggest.prototype.setSuggestions = function (input)
{
	// if field input no longer matches what was passed to the request
	// don't show the suggestions
	//
	if (input != this.fld.value){ return false;}
	this.aSug = this.suggestFilter(' ' + input, this.oP.maxentries);
	this.idAs = "as_"+this.fld.id;
	this.createList(this.aSug);

};

_tb.AutoSuggest.prototype.highLight = function(strIn, strSearch)
	{
		var idx = 0;
		var strOut = '';
		var count = 0;
		var strInLower = strIn.toLowerCase();
		var strSearchLower = strSearch.toLowerCase();
		var strSearchLen = strSearchLower.length;
		while(idx >= 0)
		{
			idx = strInLower.indexOf(strSearchLower,count);
			if(idx == -1){ break;}
			strOut += strIn.substring(count,idx) + '<em>' + strIn.substr(idx,strSearchLen) + '</em>';
			count = idx + strSearchLen;
		}
		return strOut + strIn.substring(count);
	}

_tb.AutoSuggest.prototype.createList = function(arr)
{
	var pointer = this;
	// get rid of old list
	// and clear the list removal timeout
	//
	_tb.DOM.remE(this.idAs);
	this.killTimeout();
	
	
	// if no results, and shownoresults is false, do nothing
	//
	if (arr.length == 0 && !this.oP.shownoresults) {return false;}
	
	// create holding div
	//
	var div = _tb.DOM.cE("div", {id:this.idAs, className:this.oP.className});	
	
	// create header bar

	var header = _tb.DOM.cE("div", {className:"as_header"});

	div.appendChild(header);
		
	// create and populate ul
	//
	var ul = _tb.DOM.cE("ul", {id:"as_ul"});
		
	// loop throught arr of suggestions
	// creating an LI element for each suggestion
	//
	for (var i=0;i<arr.length;i++)
	{
		// format output with the input enclosed in a EM element
		// (as HTML, not DOM)
		//
		var val = arr[i].value;
		var st = val.toLowerCase().indexOf( this.sInp.toLowerCase() );
		var output = pointer.highLight(' ' + val,' ' + this.sInp);
				
		var span 		= _tb.DOM.cE("span", {}, output, true);
		if (arr[i].info != "")
		{
			var br			= _tb.DOM.cE("br", {});
			span.appendChild(br);
			var small		= _tb.DOM.cE("small", {}, arr[i].info);
			span.appendChild(small);
		}
		
		var a 			= _tb.DOM.cE("a", { href:"#" });
		
		var tl 		= _tb.DOM.cE("span", {className:"tl"}, " ");
		var tr 		= _tb.DOM.cE("span", {className:"tr"}, " ");
		a.appendChild(tl);
		a.appendChild(tr);
		
		a.appendChild(span);
		
		a.name = i+1;
		a.onclick = function () { pointer.setHighlightedValue(); return false; };
		a.onmouseover = function () { pointer.setHighlight(this.name); };
		
		var li = _tb.DOM.cE(  "li", {}, a  );
		
		ul.appendChild( li );
	}
	
	// no results
	//
	if (arr.length == 0 && this.oP.shownoresults)
	{
		var li = _tb.DOM.cE(  "li", {className:"as_warning"}, this.oP.noresults  );
		ul.appendChild( li );
	}
	
	
	div.appendChild( ul );
	
	// create footer bar
	//var fcorner = _tb.DOM.cE("div", {className:"as_corner"});
	//var fbar = _tb.DOM.cE("div", {className:"as_bar"});
	var footer = _tb.DOM.cE("div", {className:"as_footer"});
	//footer.appendChild(fcorner);
	//footer.appendChild(fbar);
	if(this.oP.fixwidth > 0)
	{
		//footer.style.width = this.oP.fixwidth + "px";
	}
	div.appendChild(footer);
		
	// get position of target textfield
	// position holding div below it
	// set width of holding div to width of field
	//
	var pos = _tb.DOM.getPos(this.fld);
	
	div.style.left 		= pos.x + "px";
	div.style.top 		= ( pos.y + this.fld.offsetHeight + this.oP.offsety ) + "px";
	if(this.oP.fixwidth > 0)
	{
		div.style.width = this.oP.fixwidth + "px";
	}
	else
	{
		div.style.width 	= this.fld.offsetWidth + "px";
	}
		
	// set mouseover functions for div
	// when mouse pointer leaves div, set a timeout to remove the list after an interval
	// when mouse enters div, kill the timeout so the list won't be removed
	//
	div.onmouseover 	= function(){ pointer.killTimeout() };
	div.onmouseout 		= function(){ pointer.resetTimeout() };

	// add DIV to document
	//
	document.getElementsByTagName("body")[0].appendChild(div);
		
	// currently no item is highlighted
	//
	this.iHigh = 0;
	
	
	// remove list after an interval
	//
	var pointer = this;
	this.toID = setTimeout(function () { pointer.clearSuggestions() }, this.oP.timeout);
};
_tb.AutoSuggest.prototype.changeHighlight = function(key)
{	
	var list = _tb.DOM.gE("as_ul");
	if (!list) {return false;}
	var n;

	if (key == 40)
	{
		n = this.iHigh + 1;
	}
	else if (key == 38)
	{
		n = this.iHigh - 1;
	}
	if (n > list.childNodes.length)
	{
		n = list.childNodes.length;
	}
	if (n < 1)
	{
		n = 1;
	}
	this.setHighlight(n);
};

_tb.AutoSuggest.prototype.setHighlight = function(n)
{
	var list = _tb.DOM.gE("as_ul");
	if (!list)
	{
		return false;
	}
	if (this.iHigh > 0)
	{
		this.clearHighlight();
	}
	this.iHigh = Number(n);
	list.childNodes[this.iHigh-1].className = "as_highlight";
	this.killTimeout();
};

_tb.AutoSuggest.prototype.clearHighlight = function()
{
	var list = _tb.DOM.gE("as_ul");
	if (!list)
	{
		return false;
	}
	if (this.iHigh > 0)
	{
		list.childNodes[this.iHigh-1].className = "";
		this.iHigh = 0;
	}
};

_tb.AutoSuggest.prototype.setHighlightedValue = function ()
{
	if (this.iHigh)
	{
		this.sInp = this.fld.value = this.aSug[ this.iHigh-1 ].value;
		
		// move cursor to end of input (safari)
		//
		this.fld.focus();
		if (this.fld.selectionStart)
		{
			this.fld.setSelectionRange(this.sInp.length, this.sInp.length);
		}

		this.clearSuggestions();
		
		// pass selected object to callback function, if exists
		//
		if (typeof(this.oP.callback) == "function")
		{
			this.oP.callback( this.aSug[this.iHigh-1] );
		}
	}
};

_tb.AutoSuggest.prototype.killTimeout = function()
{
	clearTimeout(this.toID);
};

_tb.AutoSuggest.prototype.resetTimeout = function()
{
	clearTimeout(this.toID);
	var pointer = this;
	this.toID = setTimeout(function () { pointer.clearSuggestions() }, 1000);
};

_tb.AutoSuggest.prototype.clearSuggestions = function ()
{
	
	this.killTimeout();
	
	var ele = _tb.DOM.gE(this.idAs);
	var pointer = this;
	if (ele)
	{
		var fade = new _tb.Fader(ele,1,0,250,function () { _tb.DOM.remE(pointer.idAs) });
	}
};

// DOM PROTOTYPE _____________________________________________
if (typeof(_tb.DOM) == "undefined")
{
	_tb.DOM = {};
}
/* create element */
_tb.DOM.cE = function ( type, attr, cont, html )
{
	var ne = document.createElement( type );
	if (!ne)
	{
		return 0;
	}
	for (var a in attr)
	{
		ne[a] = attr[a];
	}
	var t = typeof(cont);
	
	if (t == "string" && !html)
	{
		ne.appendChild( document.createTextNode(cont) );
	}
	else if (t == "string" && html)
	{
		ne.innerHTML = cont;
	}
	else if (t == "object")
	{
		ne.appendChild( cont );
	}
	return ne;
};

/* get element */
_tb.DOM.gE = function ( e )
{
	var t=typeof(e);
	if (t == "undefined")
	{
		return 0;
	}
	else if (t == "string")
	{
		var re = document.getElementById( e );
		if (!re)
		{
			return 0;
		}
		else if (typeof(re.appendChild) != "undefined" )
		{
			return re;
		}
		else
		{
			return 0;
		}
	}
	else if (typeof(e.appendChild) != "undefined")
	{
		return e;
	}
	else
	{
		return 0;
	}
};

/* remove element */
_tb.DOM.remE = function ( ele )
{
	var e = this.gE(ele);
	
	if (!e)
	{
		return 0;
	}
	else if (e.parentNode.removeChild(e))
	{
		return true;
	}
	else
	{
		return 0;
	}
};

/* get position */
_tb.DOM.getPos = function ( e )
{
	var e = this.gE(e);

	var obj = e;

	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft;
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
	{
		curleft += obj.x;
	}
	var obj = e;
	
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop;
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
	{
		curtop += obj.y;
	}
	return {x:curleft, y:curtop};
};


// FADER PROTOTYPE _____________________________________________
if (typeof(_tb.Fader) == "undefined")
	_tb.Fader = {};

_tb.Fader = function (ele, from, to, fadetime, callback)
{	
	if (!ele)
	{
		return 0;
	}
	this.e = ele;
	
	this.from = from;
	this.to = to;
	
	this.cb = callback;
	
	this.nDur = fadetime;
		
	this.nInt = 50;
	this.nTime = 0;
	
	var p = this;
	this.nID = setInterval(function() { p._fade() }, this.nInt);
};

_tb.Fader.prototype._fade = function()
{
	this.nTime += this.nInt;
	
	var ieop = Math.round( this._tween(this.nTime, this.from, this.to, this.nDur) * 100 );
	var op = ieop / 100;
	
	if (this.e.filters) // internet explorer
	{
		try
		{
			this.e.filters.item("DXImageTransform.Microsoft.Alpha").opacity = ieop;
		} catch (e) { 
			// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
			this.e.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity='+ieop+')';
		}
	}
	else // other browsers
	{
		this.e.style.opacity = op;
	}
	
	
	if (this.nTime == this.nDur)
	{
		clearInterval( this.nID );
		if (this.cb != undefined)
			this.cb();
	}
};

_tb.Fader.prototype._tween = function(t,b,c,d)
{
	return b + ( (c-b) * (t/d) );
};