//////////////////////////////////////////////////////////////
// js_slider
// By Electron, Ronak Gupta, Pulkit Gupta
// Please Read the Terms of use at http://www.anelectron.com
// (c)Electron Inc.
//////////////////////////////////////////////////////////////

function slideitout(elid, endheight, inc, time){
	startheight = $(elid).offsetHeight;
	setTimeout(startsliding, time);	
	function startsliding(){	
		startheight = startheight + inc;
		if(startheight < endheight){
			diff = endheight - startheight;
			if(diff > inc){
				$(elid).style.height = startheight+"px";
				setTimeout(startsliding, time);
			}else{
				$(elid).style.height = endheight+"px"
			}
		}
	};
};

function pullitin(elid, dec, time){
	height = $(elid).offsetHeight;
	setTimeout(startsliding, time);	
	function startsliding(){	
		height = height - dec;
		if(height > 1){
			if(height > dec){
				$(elid).style.height = height+"px";
				setTimeout(startsliding, time);
			}else{
				$(elid).style.height = "1px";//A bug in IE 5.5
			}
		}
	};
};

function slider(){
	this.speed = 20;
	this.img_collapsed = imgurl+'collapsed.gif';
	this.img_expanded = imgurl+'expanded.gif';
	this.elements = new Array();
	
	this.slide = function(id){
		var height = $(id).offsetHeight;
		if(height > 1){
			pullitin(id, this.speed, 1);
			$('i'+id).src = this.img_collapsed;
			setcookie(id, '1', 365);
		}else{
			slideitout(id, $('t'+id).offsetHeight, this.speed, 1);
			$('i'+id).src = this.img_expanded;
			removecookie(id);
		}
	};
	
	//Init it
	this.init = function(){		
		var elements = this.elements;
		for(id in elements){
			if(getcookie(elements[id]) == 1){
				$(elements[id]).style.height = "1px";
				$('i'+elements[id]).src = this.img_collapsed;
			}
		}
	};
};