/*Javascript for Bubble Tooltips by Alessandro Fulciniti
http://pro.html.it - http://web-graphics.com */

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;
	t=el.getAttribute("title");
	//if(t==null || t.length==0) t="link:";
	if(t!=null){
		if(t!=""){
			el.removeAttribute("title");
			tooltip=CreateEl("span","tooltip");
			s=CreateEl("span","bottom");
			s.appendChild(document.createTextNode(t));
			b=CreateEl("b","top");
			//l=el.getAttribute("name");
			l=el.innerHTML;
			b.appendChild(document.createTextNode(l));
			tooltip.appendChild(b);
			tooltip.appendChild(s);
			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 setOpacity(el){
el.style.filter="alpha(opacity:85)";
el.style.KHTMLOpacity="0.85";
el.style.MozOpacity="0.85";
el.style.opacity="0.85";
}

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/bt.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+10)+"px";
document.getElementById("btc").style.left=(posx-190)+"px";
}