/**
	 *	Tools Tips
	 *
	 *	Idea inspired by Bubble Tooltips by Alessandro Fulciniti
	 *
	 *	@author Ollie Maitland
	 *	
	 */
	
	// Id of the element we want to look for <span> elements in
	function enableTooltips(id)
	{
		
		// If the component existss
		if(!document.getElementById || !document.getElementsByTagName) return;
		
		// New <span> element
		h=document.createElement("span");
		h.id="btc";
		h.setAttribute("id","btc");
		h.style.position="absolute";
		
		document.getElementsByTagName("body")[0].appendChild(h);
		
		if (document.getElementById(id)) {

			links = document.getElementById(id).getElementsByTagName("span");

			for(i=0;i<links.length;i++){
				Prepare(links[i]);
			}

		}
    	
	}

	function setOpacity(el){
		el.style.filter="alpha(opacity:95)";
		el.style.KHTMLOpacity="0.95";
		el.style.MozOpacity="0.95";
		el.style.opacity="0.95";
	}


	function Prepare(el){
		var tooltip,t,b,s,l;
		t=el.getAttribute("title");
		if(t==null || t.length==0) return;
		el.removeAttribute("title");
		tooltip=CreateEl("span","tooltip");
		s=CreateEl("span","top");
		s.appendChild(document.createTextNode(t));
		tooltip.appendChild(s);
		b=CreateEl("b","bottom");

		setOpacity(tooltip);
		el.tooltip=tooltip;
		el.onmouseover=showTooltip;
		el.onmouseout=hideTooltip;
		el.onmousemove=Locate;
	}
	
	function showTooltip(e){
		document.getElementById("btc").appendChild(this.tooltip);
		Locate(e);
	}
	
	function hideTooltip(e){
		var d=document.getElementById("btc");
		if(d.childNodes.length>0) d.removeChild(d.firstChild);
	}
	
	function CreateEl(t,c){
		var x=document.createElement(t);
		x.className=c;
		x.style.display="block";
		return(x);
	}
	
	function Locate(e){
	var posx=0,posy=0;
	if(e==null) e=window.event;
	if(e.pageX || e.pageY){
	    posx=e.pageX; posy=e.pageY;
	    }
	else if(e.clientX || e.clientY){
	    if(document.documentElement.scrollTop){
	        posx=e.clientX+document.documentElement.scrollLeft;
	        posy=e.clientY+document.documentElement.scrollTop;
	        }
	    else{
	        posx=e.clientX+document.body.scrollLeft;
	        posy=e.clientY+document.body.scrollTop;
	        }
	    }
	document.getElementById("btc").style.top=(posy+10)+"px";
	document.getElementById("btc").style.left=(posx-20)+"px";
	}