var useBSNns;

if (useBSNns) {
	if (typeof(bsn) == "undefined")
		bsn = {}
	_bsn = bsn;
} else {
	_bsn = this;
}

if (typeof(_bsn.Autosuggest) == "undefined")
	_bsn.Autosuggest = {}
	_bsn.AutoSuggest = function (fldID, frmNm, param)
{
	// no DOM - give up!
	//
	if (!document.getElementById)
		return false;
	
	// get field via DOM
	//
	this.fld = _bsn.DOM.getElement(fldID);
	this.frmNm = frmNm;
	this.fldID = fldID;

	if (!this.fld) return false;
	
	// init variables
	//
	this.sInput		= "";
	this.nInputChars	= 0;
	this.aSuggestions	= [];
	this.iHighlighted	= 0;	
	
	// parameters object
	//
	this.oP = (param) ? param : {};
	
	// defaults	
	//
	if (!this.oP.minchars) 	this.oP.minchars = 4;
	if (!this.oP.method) 	this.oP.meth = "get";
	if (!this.oP.varname)	this.oP.varname = "input";
	if (!this.oP.className)	this.oP.className = "autosuggest";
	if (!this.oP.timeout)	this.oP.timeout = 3500;
	if (!this.oP.delay)	this.oP.delay = 500;
	if (!this.oP.offsety)	this.oP.offsety = -5;
	if (!this.oP.shownoresults) this.oP.shownoresults = false;
	if (!this.oP.noresults)	this.oP.noresults = "No results";
	if (!this.oP.maxheight && this.oP.maxheight !== 0)	this.oP.maxheight = 200;
	if (!this.oP.cache && this.oP.cache != false)	this.oP.cache = 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");
}

_bsn.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();
			// document.getElementById(this.frmNm).submit();
			bubble = false;
			break;
		case ESC:
			this.clearSuggestions();
			break;
	}

	return bubble;
}

_bsn.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:
			this.getSuggestions(this.fld.value);
	}

	return bubble;
}

_bsn.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())
				arr.push( this.aSuggestions[i] );
		}
		
		this.sInput = val;
		this.nInputChars = val.length;
		this.aSuggestions = arr;
		
		this.createList(this.aSuggestions);
		return false;
	} else {
		this.sInput = val;
		this.nInputChars = val.length;

		var pointer = this;
		clearTimeout(this.ajID);
		this.ajID = setTimeout( function() { pointer.doAjaxRequest() }, this.oP.delay );
	}

	return false;
}

_bsn.AutoSuggest.prototype.doAjaxRequest = function () {
	var pointer = this;
	
	// create ajax request
	var url = this.oP.script+this.oP.varname+"="+escape(this.fld.value);
	var meth = this.oP.meth;
	
	var onSuccessFunc = function (req) { pointer.setSuggestions(req) };
	var onErrorFunc = function (status) { alert("AJAX error: "+status); };

	var myAjax = new _bsn.Ajax();
	myAjax.makeRequest( url, meth, onSuccessFunc, onErrorFunc );
}

function html_entity_decode (string, quote_style) {
    // http://kevin.vanzonneveld.net
    // +   original by: john (http://www.jd-tech.net)
    // +      input by: ger
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman
    // +   improved by: marc andreu
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +    bugfixed by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Ratheous
    // -    depends on: get_html_translation_table
    // *     example 1: html_entity_decode('Kevin &amp; van Zonneveld');
    // *     returns 1: 'Kevin & van Zonneveld'
    // *     example 2: html_entity_decode('&amp;lt;');
    // *     returns 2: '&lt;'
 
    var hash_map = {}, symbol = '', tmp_str = '', entity = '';
    tmp_str = string.toString();
    
    if (false === (hash_map = this.get_html_translation_table('HTML_ENTITIES', quote_style))) {
        return false;
    }
 
    for (symbol in hash_map) {
        entity = hash_map[symbol];
        tmp_str = tmp_str.split(entity).join(symbol);
    }
    tmp_str = tmp_str.split('&#039;').join("'");
    
    return tmp_str;
}

function get_html_translation_table (table, quote_style) {
    var entities = {}, hash_map = {}, decimal = 0, symbol = '';
    var constMappingTable = {}, constMappingQuoteStyle = {};
    var useTable = {}, useQuoteStyle = {};
    
    // Translate arguments
    constMappingTable[0]      = 'HTML_SPECIALCHARS';
    constMappingTable[1]      = 'HTML_ENTITIES';
    constMappingQuoteStyle[0] = 'ENT_NOQUOTES';
    constMappingQuoteStyle[2] = 'ENT_COMPAT';
    constMappingQuoteStyle[3] = 'ENT_QUOTES';
 
    useTable       = !isNaN(table) ? constMappingTable[table] : table ? table.toUpperCase() : 'HTML_SPECIALCHARS';
    useQuoteStyle = !isNaN(quote_style) ? constMappingQuoteStyle[quote_style] : quote_style ? quote_style.toUpperCase() : 'ENT_COMPAT';
 
    if (useTable !== 'HTML_SPECIALCHARS' && useTable !== 'HTML_ENTITIES') {
        throw new Error("Table: "+useTable+' not supported');
        // return false;
    }
 
    entities['38'] = '&amp;';
    if (useTable === 'HTML_ENTITIES') {
        entities['160'] = '&nbsp;';
        entities['161'] = '&iexcl;';
        entities['162'] = '&cent;';
        entities['163'] = '&pound;';
        entities['164'] = '&curren;';
        entities['165'] = '&yen;';
        entities['166'] = '&brvbar;';
        entities['167'] = '&sect;';
        entities['168'] = '&uml;';
        entities['169'] = '&copy;';
        entities['170'] = '&ordf;';
        entities['171'] = '&laquo;';
        entities['172'] = '&not;';
        entities['173'] = '&shy;';
        entities['174'] = '&reg;';
        entities['175'] = '&macr;';
        entities['176'] = '&deg;';
        entities['177'] = '&plusmn;';
        entities['178'] = '&sup2;';
        entities['179'] = '&sup3;';
        entities['180'] = '&acute;';
        entities['181'] = '&micro;';
        entities['182'] = '&para;';
        entities['183'] = '&middot;';
        entities['184'] = '&cedil;';
        entities['185'] = '&sup1;';
        entities['186'] = '&ordm;';
        entities['187'] = '&raquo;';
        entities['188'] = '&frac14;';
        entities['189'] = '&frac12;';
        entities['190'] = '&frac34;';
        entities['191'] = '&iquest;';
        entities['192'] = '&Agrave;';
        entities['193'] = '&Aacute;';
        entities['194'] = '&Acirc;';
        entities['195'] = '&Atilde;';
        entities['196'] = '&Auml;';
        entities['197'] = '&Aring;';
        entities['198'] = '&AElig;';
        entities['199'] = '&Ccedil;';
        entities['200'] = '&Egrave;';
        entities['201'] = '&Eacute;';
        entities['202'] = '&Ecirc;';
        entities['203'] = '&Euml;';
        entities['204'] = '&Igrave;';
        entities['205'] = '&Iacute;';
        entities['206'] = '&Icirc;';
        entities['207'] = '&Iuml;';
        entities['208'] = '&ETH;';
        entities['209'] = '&Ntilde;';
        entities['210'] = '&Ograve;';
        entities['211'] = '&Oacute;';
        entities['212'] = '&Ocirc;';
        entities['213'] = '&Otilde;';
        entities['214'] = '&Ouml;';
        entities['215'] = '&times;';
        entities['216'] = '&Oslash;';
        entities['217'] = '&Ugrave;';
        entities['218'] = '&Uacute;';
        entities['219'] = '&Ucirc;';
        entities['220'] = '&Uuml;';
        entities['221'] = '&Yacute;';
        entities['222'] = '&THORN;';
        entities['223'] = '&szlig;';
        entities['224'] = '&agrave;';
        entities['225'] = '&aacute;';
        entities['226'] = '&acirc;';
        entities['227'] = '&atilde;';
        entities['228'] = '&auml;';
        entities['229'] = '&aring;';
        entities['230'] = '&aelig;';
        entities['231'] = '&ccedil;';
        entities['232'] = '&egrave;';
        entities['233'] = '&eacute;';
        entities['234'] = '&ecirc;';
        entities['235'] = '&euml;';
        entities['236'] = '&igrave;';
        entities['237'] = '&iacute;';
        entities['238'] = '&icirc;';
        entities['239'] = '&iuml;';
        entities['240'] = '&eth;';
        entities['241'] = '&ntilde;';
        entities['242'] = '&ograve;';
        entities['243'] = '&oacute;';
        entities['244'] = '&ocirc;';
        entities['245'] = '&otilde;';
        entities['246'] = '&ouml;';
        entities['247'] = '&divide;';
        entities['248'] = '&oslash;';
        entities['249'] = '&ugrave;';
        entities['250'] = '&uacute;';
        entities['251'] = '&ucirc;';
        entities['252'] = '&uuml;';
        entities['253'] = '&yacute;';
        entities['254'] = '&thorn;';
        entities['255'] = '&yuml;';
    }
 
    if (useQuoteStyle !== 'ENT_NOQUOTES') {
        entities['34'] = '&quot;';
    }
    if (useQuoteStyle === 'ENT_QUOTES') {
        entities['39'] = '&#39;';
    }
    entities['60'] = '&lt;';
    entities['62'] = '&gt;';
 
 
    // ascii decimals to real symbols
    for (decimal in entities) {
        symbol = String.fromCharCode(decimal);
        hash_map[symbol] = entities[decimal];
    }
    
    return hash_map;
}

_bsn.AutoSuggest.prototype.setSuggestions = function (req) {
	this.aSuggestions = [];
	
	if (this.oP.json) {
		var jsondata = eval ('(' + req.responseText + ')');
		
		for (var i=0;i<jsondata.results.length;i++) {
			jsondata.results[i].value = html_entity_decode(jsondata.results[i].value);
			this.aSuggestions.push(  { 'id':jsondata.results[i].id, 'value':jsondata.results[i].value, 'info':jsondata.results[i].info }  );
		}
	} else {

		var xml = req.responseXML;

		// traverse xml
		//
		if (xml) {
			var results = xml.getElementsByTagName('results')[0].childNodes;
			var info = '';
			for (var i=0;i<results.length;i++) {
				if (results[i].hasChildNodes())
					value = html_entity_decode(results[i].childNodes[0].nodeValue);
					this.aSuggestions.push(  { 'id':results[i].getAttribute('id'), 'cal':results[i].getAttribute('cal'), 'date':results[i].getAttribute('date'), 'value':value, 'email':results[i].getElementsByTagName('email')[0], 'phone':results[i].getElementsByTagName('phone')[0], 'dept':results[i].getElementsByTagName('dept')[0], 'info':results[i].getAttribute('info') }  );
			}
		}
	}
	
	this.idAs = "as_"+this.fld.id;
	this.createList(this.aSuggestions);
}

_bsn.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});	
	
	var hcorner = _bsn.DOM.createElement("div", {className:"as_corner"});
	var hbar = _bsn.DOM.createElement("div", {className:"as_bar"});
	var header = _bsn.DOM.createElement("div", {className:"as_header"});
	header.appendChild(hcorner);
	header.appendChild(hbar);
	div.appendChild(header);
	
	// 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) + val.substring(st, st+this.sInput.length) + val.substring(st+this.sInput.length);
		
		
		var span 		= _bsn.DOM.createElement("span", {}, output, true);
		if (arr[i].info) {
			span.appendChild(_bsn.DOM.createElement("br", {}));
			span.appendChild(_bsn.DOM.createElement("small", {}, arr[i].info));
		}
		if (arr[i].dept) {
			span.appendChild(_bsn.DOM.createElement("br", {}));
			span.appendChild(_bsn.DOM.createElement("small", {}, arr[i].dept));
		}
		if (arr[i].email) {
			span.appendChild(_bsn.DOM.createElement("br", {}));
			span.appendChild(_bsn.DOM.createElement("small", {}, arr[i].email));
		}
		if (arr[i].phone) {
			span.appendChild(_bsn.DOM.createElement("br", {}));
			span.appendChild(_bsn.DOM.createElement("small", {}, arr[i].phone));
		}		
		
		var a 	= _bsn.DOM.createElement("a", (pointer.fld.name != 'contact' ? { href:(isNaN(arr[i].id) ? "/oncampus/calendar/"+arr[i].cal+"/"+arr[i].date+"/" : "/oncampus/?p=")+arr[i].id } : '')  );
		
		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(); (pointer.fld.name != 'contact' ? window.location = this.href : ''); }
		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 == true) {
		var li 	= _bsn.DOM.createElement(  "li", {className:"as_warning"}, this.oP.noresults  );
		ul.appendChild( li );
	}

	if (arr.length != 0 || (arr.length == 0 && this.oP.shownoresults == true)) {
		div.appendChild( ul );
	
		var fcorner = _bsn.DOM.createElement("div", {className:"as_corner"});
		var fbar = _bsn.DOM.createElement("div", {className:"as_bar"});
		var footer = _bsn.DOM.createElement("div", {className:"as_footer"});
		footer.appendChild(fcorner);
		footer.appendChild(fbar);
		div.appendChild(footer);
	
		// 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 + this.oP.offsety ) + "px";
		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.iHighlighted = 0;

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

_bsn.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);
}

_bsn.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();
}

_bsn.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;
	}
}

_bsn.AutoSuggest.prototype.setHighlightedValue = function () {
	if (this.iHighlighted) {
		this.sInput = this.fld.value = this.aSuggestions[ this.iHighlighted-1 ].value.replace(/&[^ ]*/g,'').replace(/\s\s/,' ');

		// move cursor to end of input (safari)
		//
		this.fld.focus();
		if (this.fld.selectionStart)
			this.fld.setSelectionRange(this.sInput.length, this.sInput.length);
		var submit_button = document.getElementById(this.fldID);
		submit_button.focus();

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

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

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

_bsn.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) });
	}
}

// AJAX PROTOTYPE _____________________________________________

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

_bsn.Ajax = function () {
	this.req = {};
	this.isIE = false;
}

_bsn.Ajax.prototype.makeRequest = function (url, meth, onComp, onErr) {
	
	if (meth != "POST") meth = "GET";
	
	this.onComplete = onComp;
	this.onError = onErr;
	
	var pointer = this;
	
	// branch for native XMLHttpRequest object
	if (window.XMLHttpRequest) {
		this.req = new XMLHttpRequest();
		this.req.onreadystatechange = function () { pointer.processReqChange() };
		this.req.open("GET", url, true); //
		this.req.send(null);
	// branch for IE/Windows ActiveX version
	} else if (window.ActiveXObject) {
		this.req = new ActiveXObject("Microsoft.XMLHTTP");
		if (this.req) {
			this.req.onreadystatechange = function () { pointer.processReqChange() };
			this.req.open(meth, url, true);
			this.req.send();
		}
	}
}

_bsn.Ajax.prototype.processReqChange = function() {
	
	// only if req shows "loaded"
	if (this.req.readyState == 4) {
		// only if "OK"
		if (this.req.status == 200) {
			this.onComplete( this.req );
		} else {
			this.onError( this.req.status );
		}
	}
}

// DOM PROTOTYPE _____________________________________________

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 ( ele ) {
	var ele = this.getElement(ele);

	var obj = ele;

	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	} else if (obj.x)
		curleft += obj.x;


	var obj = ele;
	
	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(_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) );
}

function autosuggest(procFile,fieldSrc,frmNm) {
	procFile = typeof(procFile) != 'undefined' ? procFile : new Array('/oncampus/calendar/functions/autosuggest.php');
	fieldSrc = typeof(fieldSrc) != 'undefined' ? fieldSrc : new Array('s');
	frmNm = typeof(frmNm) != 'undefined' ? frmNm : new Array('searchform');

        var query_box = new Array();
	for(var i=0; i < procFile.length; i++) {
		var options = {
			script: procFile[i] + "?",
			varname:"input"
		};
		query_box[i] = new AutoSuggest(fieldSrc[i], frmNm[i], options);
        }
}