AutoSuggest = function(fldID, param)
{
	// init variables
	this.fld = _bsn.DOM.getElement(fldID);
	
	this.sInput 		= "";
	this.nInputChars 	= 0;
	this.aSuggestions 	= [];
	this.iHighlighted 	= 0;
	// parameters object
	//
	this.oP = (param) ? param : {};
	// defaults
	//
	if (!this.oP.minchars)									this.oP.minchars = 1;
	if (!this.oP.method)									this.oP.meth = "POST";
	if (!this.oP.typename)									this.oP.typename = "type";
	if (!this.oP.varname)									this.oP.varname = "input";
	if (!this.oP.className)									this.oP.className = "autosuggest";
	if (!this.oP.timeout)									this.oP.timeout = 5000;
	if (this.oP.delay == null)								this.oP.delay = 500;
	if (!this.oP.offsety)									this.oP.offsety = 1;
	if (this.oP.shownoresults == null)						this.oP.shownoresults = true;
	if (!this.oP.noresults)									this.oP.noresults = "No results!";
	if (this.oP.maxheight == null)							this.oP.maxheight = 250;
	if (this.oP.cache == null)								this.oP.cache = true;
	if (this.oP.useseparator == null)						this.oP.useeparator = false;
	if (this.oP.separator == null)							this.oP.separator = ",";
	if (this.oP.json == null)								this.oP.json = true;
	// set keyup handler for field
	// and prevent autocomplete from client
	var pointer = this;
	// NOTE: not using addEventListener because UpArrow fired twice in Safari
	//_bsn.DOM.addEvent( this.fld, 'keyup', function(ev){ return pointer.onKeyPress(ev); } );
	this.fld.onkeypress 	= function(ev){ return pointer.onKeyPress(ev); }
	this.fld.onkeyup 		= function(ev){ return pointer.onKeyUp(ev); }
	this.fld.setAttribute("autocomplete","off");
}

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 = true;
	switch(key)
	{
/*
		case RETURN:
			this.setHighlightedValue();
			bubble = false;
			break;
*/
		case ESC:
			this.clearSuggestions();
			break;
	}
	return bubble;
}

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 = true;
	switch(key)
	{
		case ARRUP:
			this.changeHighlight(key);
			bubble = false;
			break;


		case ARRDN:
			this.changeHighlight(key);
			bubble = false;
			break;


		default:
			if (this.oP.useseparator == true) this.getSuggestions(this.getSeparatedContent(this.fld.value));
			else this.getSuggestions(this.fld.value);
			break;
	}
	return bubble;
}

AutoSuggest.prototype.getSeparatedContent = function (val)
{
	var index = val.lastIndexOf(this.oP.separator.charAt(0));
	if (index == -1) return val;
	else return val.substr(index + this.oP.separator.length);
}

AutoSuggest.prototype.getSuggestions = function (val)
{
	// if input stays the same, do nothing
	if (val == this.sInput) return false;

	// input length is less than the min required to trigger a request
	// reset input string
	// do nothing
	if (val.length < this.oP.minchars)
	{
		this.sInput = "";
		return false;
	}

	// if caching enabled, and user is typing (ie. length of input is increasing)
	// filter results out of aSuggestions from last request
	if (val.length > this.nInputChars && this.aSuggestions.length && this.oP.cache)
	{
		var arr = [];
		for (var i=0;i<this.aSuggestions.length;i++)
		{
			if ((this.aSuggestions[i].value.substr(0,val.length).toLowerCase() == val.toLowerCase()) ||
				((this.aSuggestions[i].value1) && (this.aSuggestions[i].value1.substr(0,val.length).toLowerCase() == val.toLowerCase())))
				arr.push( this.aSuggestions[i] );
		}

		this.sInput = val;
		this.nInputChars = val.length;
		this.aSuggestions = arr;

		this.createList(this.aSuggestions);



		return false;
	}
	else	// do new request
	{
		this.sInput = val;
		this.nInputChars = val.length;
		var pointer = this;
		clearTimeout(this.ajID);
		this.ajID = setTimeout( function() { pointer.doAjaxRequest() }, this.oP.delay );
	}

	return false;
}

AutoSuggest.prototype.doAjaxRequest = function ()
{
	if (!doRequest)
	{
		alert("rpc has not been included");
		return;
	}
	if (!this.oP.objecttype)
	{
		alert("Object type has not been specified");
		return;
	}
	var pointer = this;
	// Do RPC request
	if (this.oP.useseparator) var input = this.getSeparatedContent(this.fld.value);
	else var input = this.fld.value;
	var url = this.oP.script;
	var meth = this.oP.meth;
	var onSuccessFunc = function (data) { pointer.setSuggestions(data) };
	var args = {};
	args[this.oP.typename] = this.oP.objecttype;
	args[this.oP.varname] = input;
	doRequest(meth, url, args, onSuccessFunc);
}

AutoSuggest.prototype.setSuggestions = function (data)
{
	this.aSuggestions = [];
	if (!data) return;
	for (var i=0;i<data.results.length;i++)
	{
		var result = data.results[i];
		var suggestion = {'id':result.id, 'value':result.value};
		if (result.value1) suggestion['value1'] = result.value1;
		if (result.info) suggestion['info'] = result.info;
		this.aSuggestions.push(suggestion);
	}
	this.idAs = "as_"+this.fld.id;
	this.createList(this.aSuggestions);
}

AutoSuggest.prototype.createList = function(arr)
{
	var pointer = this;

	// get rid of old list
	// and clear the list removal timeout
	_bsn.DOM.removeElement(this.idAs);
	this.killTimeout();

	// create holding div
	var div = _bsn.DOM.createElement("div", {id:this.idAs, className:this.oP.className});
	// get position of target textfield
	// position holding div below it
	// set width of holding div to width of field
	var pos = _bsn.DOM.getPos(this.fld);
	div.style.left		= pos.x + "px";
	div.style.top		= pos.y + this.fld.offsetHeight + "px";
	div.style.width		= this.fld.offsetWidth + "px";

	// create and populate ul
	var ul = _bsn.DOM.createElement("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.sInput.toLowerCase() );
		var output = val.substring(0,st) + "<em>" + val.substring(st, st+this.sInput.length) + "</em>" + val.substring(st+this.sInput.length);


		var span 		= _bsn.DOM.createElement("span", {}, output, true);
		if (arr[i].info)
		{
			var br			= _bsn.DOM.createElement("br", {});
			span.appendChild(br);
			var small		= _bsn.DOM.createElement("small", {}, arr[i].info);
			span.appendChild(small);
		}

		var a 			= _bsn.DOM.createElement("a", { href:"#" });

		var tl 		= _bsn.DOM.createElement("span", {className:"tl"}, " ");
		var tr 		= _bsn.DOM.createElement("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 			= _bsn.DOM.createElement(  "li", {}, a  );

		ul.appendChild( li );
	}

	// no results
	if ((arr.length == 0) && (this.oP.shownoresults))
	{
		var li 			= _bsn.DOM.createElement(  "li", {className:"as_warning"}, this.oP.noresults  );

		ul.appendChild( li );
	}

	div.appendChild( ul );
	// 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.iHighlighted = 0;
	// remove list after an interval
	var pointer = this;
	this.toID = setTimeout(function () { pointer.clearSuggestions() }, this.oP.timeout);
}

AutoSuggest.prototype.changeHighlight = function(key)
{
	var list = _bsn.DOM.getElement("as_ul");
	if (!list)
		return false;

	var n;

	if (key == 40)
		n = this.iHighlighted + 1;
	else if (key == 38)
		n = this.iHighlighted - 1;


	if (n > list.childNodes.length)
		n = list.childNodes.length;
	if (n < 1)
		n = 1;

	this.setHighlight(n);
}

AutoSuggest.prototype.setHighlight = function(n)
{
	var list = _bsn.DOM.getElement("as_ul");
	if (!list)
		return false;

	if (this.iHighlighted > 0)
		this.clearHighlight();

	this.iHighlighted = Number(n);

	list.childNodes[this.iHighlighted-1].className = "as_highlight";

	this.killTimeout();
}

AutoSuggest.prototype.clearHighlight = function()
{
	var list = _bsn.DOM.getElement("as_ul");
	if (!list)
		return false;

	if (this.iHighlighted > 0)
	{
		list.childNodes[this.iHighlighted-1].className = "";
		this.iHighlighted = 0;
	}
}

AutoSuggest.prototype.setHighlightedValue = function ()
{
	if (this.iHighlighted)
	{
		if (this.oP.useseparator)
		{
			var index = this.fld.value.lastIndexOf(this.oP.separator);
			if (index == -1) this.sInput = this.fld.value = this.aSuggestions[ this.iHighlighted-1 ].value;
			else this.sInput = this.fld.value = this.fld.value.substr(0, index) + this.oP.separator + this.aSuggestions[ this.iHighlighted-1 ].value;
		}
		else
		{
			this.sInput = this.fld.value = this.aSuggestions[ this.iHighlighted-1 ].value;
		}

		// move cursor to end of input (safari)
		//
		this.fld.focus();
		if (this.fld.selectionStart)
			this.fld.setSelectionRange(this.sInput.length, this.sInput.length);


		this.clearSuggestions();

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

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

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

AutoSuggest.prototype.clearSuggestions = function ()
{
	this.killTimeout();

	var ele = _bsn.DOM.getElement(this.idAs);
	var pointer = this;
	if (ele)
	{
		var fade = new _bsn.Fader(ele,1,0,250,function () { _bsn.DOM.removeElement(pointer.idAs) });
	}
}

_bsn = this;
if (typeof(_bsn.DOM) == "undefined") _bsn.DOM = {}

_bsn.DOM.createElement = function ( type, attr, cont, html )
{
	var ne = document.createElement( type );
	if (!ne)
		return false;

	for (var a in attr)
		ne[a] = attr[a];

	if (typeof(cont) == "string" && !html)
		ne.appendChild( document.createTextNode(cont) );
	else if (typeof(cont) == "string" && html)
		ne.innerHTML = cont;
	else if (typeof(cont) == "object")
		ne.appendChild( cont );

	return ne;
}

_bsn.DOM.clearElement = function ( id )
{
	var ele = this.getElement( id );

	if (!ele)
		return false;

	while (ele.childNodes.length)
		ele.removeChild( ele.childNodes[0] );

	return true;
}

_bsn.DOM.removeElement = function ( ele )
{
	var e = this.getElement(ele);

	if (!e)
		return false;
	else if (e.parentNode.removeChild(e))
		return true;
	else
		return false;
}

_bsn.DOM.replaceContent = function ( id, cont, html )
{
	var ele = this.getElement( id );

	if (!ele)
		return false;

	this.clearElement( ele );

	if (typeof(cont) == "string" && !html)
		ele.appendChild( document.createTextNode(cont) );
	else if (typeof(cont) == "string" && html)
		ele.innerHTML = cont;
	else if (typeof(cont) == "object")
		ele.appendChild( cont );
}

_bsn.DOM.getElement = function ( ele )
{
	if (typeof(ele) == "undefined")
	{
		return false;
	}
	else if (typeof(ele) == "string")
	{
		var re = document.getElementById( ele );
		if (!re)
			return false;
		else if (typeof(re.appendChild) != "undefined" ) {
			return re;
		} else {
			return false;
		}
	}
	else if (typeof(ele.appendChild) != "undefined")
		return ele;
	else
		return false;
}

_bsn.DOM.appendChildren = function ( id, arr )
{
	var ele = this.getElement( id );

	if (!ele)
		return false;


	if (typeof(arr) != "object")
		return false;

	for (var i=0;i<arr.length;i++)
	{
		var cont = arr[i];
		if (typeof(cont) == "string")
			ele.appendChild( document.createTextNode(cont) );
		else if (typeof(cont) == "object")
			ele.appendChild( cont );
	}
}

_bsn.DOM.getPos = function ( elem )
{
	var curleft=0, curtop=0;

	while ((typeof(elem)=="object") && (typeof(elem.tagName) != "undefined"))
	{
		curtop += elem.offsetTop;
		curleft += elem.offsetLeft;
		if (elem.tagName == "BODY") elem = 0;

		if (typeof(elem.offsetParent)=="object") elem = elem.offsetParent;
		else break;
	}
	return {x:curleft, y:curtop};
}

// FADER PROTOTYPE _____________________________________________

if (typeof(_bsn.Fader) == "undefined")
	_bsn.Fader = {}

_bsn.Fader = function (ele, from, to, fadetime, callback)
{
	if (!ele)
		return false;

	this.ele = ele;

	this.from = from;
	this.to = to;

	this.callback = callback;

	this.nDur = fadetime;

	this.nInt = 50;
	this.nTime = 0;

	var p = this;
	this.nID = setInterval(function() { p._fade() }, this.nInt);
}

_bsn.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.ele.filters) // internet explorer
	{
		try
		{
			this.ele.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.ele.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity='+ieop+')';
		}
	}
	else // other browsers
	{
		this.ele.style.opacity = op;
	}


	if (this.nTime == this.nDur)
	{
		clearInterval( this.nID );
		if (this.callback != undefined)
			this.callback();
	}
}



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