function enableTooltips(id)
{
	var links,i,h;
	
	if(!document.getElementById || !document.getElementsByTagName) 
		
		return;
		
	AddCss();
	
	h=document.createElement("span");
	h.id="btc";
	h.setAttribute("id","btc");
	h.style.position="absolute";
	
	document.getElementsByTagName("body")[0].appendChild(h);

	if(id==null) 
		
		links=document.getElementsByTagName("a");
		
	else 
	
		links=document.getElementById(id).getElementsByTagName("a");
		
	for(i=0;i<links.length;i++)
	{
    	Prepare(links[i]);
    }
}

function Prepare(el)
{
	var tooltip,t,b,s,l,id;	
	
	id=el.getAttribute("id");
	
	if(id == "info")
	{	
		t=el.getAttribute("title");
					
		el.removeAttribute("title");
	
		tooltip=CreateEl("span","tooltip");	
		s=CreateEl("span","top");
		
		s.appendChild(document.createTextNode(t));
		tooltip.appendChild(s);
		
		b=CreateEl("b","bottom");
		
		tooltip.appendChild(b);
		
		setOpacity(tooltip);
		el.tooltip=tooltip;
		el.onmouseover=showTooltip;
		el.onmouseout=hideTooltip;
		el.onmousemove=Locate;
	}
}

function showTooltip(e)
{
	document.getElementById("btc").appendChild(this.tooltip);
	
	if(jQuery.browser.mozilla == true)
	{
		//jQuery(document.getElementById('btc')).dropShadow({left: 5, top: 5, blur: 2, color: '#444444'}); 
	}
	
	Locate(e);
}

function hideTooltip(e)
{
	var d=document.getElementById("btc");
	
	if(jQuery.browser.mozilla == true)
	{
		//jQuery(document.getElementById('btc')).removeShadow(); 
	}
	
	if(d.childNodes.length>0) 
	
		d.removeChild(d.firstChild);
}

function setOpacity(el)
{
	el.style.filter="alpha(opacity:90)";
	el.style.KHTMLOpacity="0.90";
	el.style.MozOpacity="0.90";
	el.style.opacity="0.90";
}

function CreateEl(t,c)
{
	var x=document.createElement(t);
	x.className=c;
	x.style.display="block";
	
	return(x);
}

function AddCss()
{
	var l=CreateEl("link");
	l.setAttribute("type","text/css");
	l.setAttribute("rel","stylesheet");
	l.setAttribute("href","css/tooltips.css");
	l.setAttribute("media","screen");
	
	document.getElementsByTagName("head")[0].appendChild(l);
}

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+15)+"px";
	document.getElementById("btc").style.left=(posx-15)+"px";
}