function cx(e)
{
	 
	if(typeof(e)!='string') return e;
	if(document.getElementById) e=document.getElementById(e);
	else if(document.all) e=document.all[e];
	else e=null;
	return e;
 
}
String.prototype.trim=function()
{
	return this.replace(/^\s*|\s*$/g,'');
}
String.prototype.ltrim=function()
{
	return this.replace(/^\s*/g,'');
}
String.prototype.rtrim=function(){
	return this.replace(/\s*$/g,'');
}
 


function implode (glue, pieces) {
    
    var i = '', retVal='', tGlue='';
    if (arguments.length === 1) {        pieces = glue;
        glue = '';
    }
    if (typeof(pieces) === 'object') {
        if (pieces instanceof Array) {            return pieces.join(glue);
        }
        else {
            for (i in pieces) {
                retVal += tGlue + pieces[i];                tGlue = glue;
            }
            return retVal;
        }
    }    else {
        return pieces;
    }
}





var Url = {
 
	// public method for url encoding
	encode : function (string) {
		return escape(this._utf8_encode(string));
	},
 
	// public method for url decoding
	decode : function (string) {
		return this._utf8_decode(unescape(string));
	},
 
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
 
}







function UTRating(ratingElementId, maxStars, objectName, formName, ratingMessageId, componentSuffix, size) {
	this.ratingElementId	=	ratingElementId;
	this.maxStars			=	maxStars;
	this.objectName			=	objectName;
	this.formName			=	formName;
	this.ratingMessageId	=	ratingMessageId;
	this.componentSuffix	=	componentSuffix;

	this.starTimer = null;
	this.starCount = 0;

	function showStars(starNum, skipMessageUpdate) {
		this.clearStarTimer();
		this.greyStars();
		this.colorStars(starNum);
		if(!skipMessageUpdate)
			this.setMessage(starNum);
	}

	function setMessage(starNum) {
		messages = new Array("Rate this "+type_rating, "Poor", "Nothing special", "Worth watching", "Pretty cool", "Awesome!");
		document.getElementById(this.ratingMessageId).innerHTML = messages[starNum];
	}

	function colorStars(starNum) {
		for (var i=0; i < starNum; i++)
			document.getElementById('star_'  + this.componentSuffix + "_" + (i+1)).src = UT_RATING_IMG.src;
	}

	function greyStars() {
		for (var i=0; i < this.maxStars; i++)
			if (i <= this.starCount)
				document.getElementById('star_' + this.componentSuffix + "_"  + (i+1)).src = UT_RATING_IMG_BG.src;  
			else
				document.getElementById('star_' + this.componentSuffix + "_"  + (i+1)).src = UT_RATING_IMG_BG.src;
	}

	function setStars(starNum) {
		this.starCount = starNum;
		this.drawStars(starNum);
		document.forms[this.formName]['rating'].value = this.starCount;
		var ratingElementId = this.ratingElementId;
		postForm(this.formName, true, function (req) { replaceDivContents(req, ratingElementId); });
	}

	function drawStars(starNum, skipMessageUpdate) {
		this.starCount=starNum;
		this.showStars(starNum, skipMessageUpdate);
	}

	function clearStars() {
		this.starTimer = setTimeout(this.objectName + ".resetStars()", 0);
	}

	function resetStars() {
		this.clearStarTimer();
		if (this.starCount)
			this.drawStars(this.starCount);
		else
			this.greyStars();
		this.setMessage(0);
	}

	function clearStarTimer() {
		if (this.starTimer) {
			clearTimeout(this.starTimer);
			this.starTimer = null;
		}
	}

	 

	this.clearStars		=	clearStars;
	this.clearStarTimer	=	clearStarTimer;
	this.greyStars		=	greyStars;
	this.colorStars		=	colorStars;
	this.resetStars		=	resetStars;
	this.setStars		=	setStars;
	this.drawStars		=	drawStars;
	this.showStars		=	showStars;
	this.setMessage		=	setMessage;
 }

function checksel(inp)
{
	var x=document.getElementsByName(inp+"[]");
	if( document.getElementById(inp).checked==true)
	{
		for (i = 0; i < x.length; i++)
		{
			x[i].checked = true ;
		}
	}
	else
	{	
		for (i = 0; i < x.length; i++)
		{
			x[i].checked = false;
		}
	}
}