/*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="";
	el.removeAttribute("title");
	if(t!=null && t.length!=0){
		tooltip=CreateEl("span","tooltip");
		s=CreateEl("span","top");
		s.appendChild(document.createTextNode(t));
		tooltip.appendChild(s);
		b=CreateEl("b","bottom");
/*--------------------------------------------------
		l=el.getAttribute("href");

		if(l.length>28) l=l.substr(0,25)+"...";

		b.appendChild(document.createTextNode(l));
------------------------------------------------------*/
		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);
	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:95)";
	el.style.KHTMLOpacity="0.95";
	el.style.MozOpacity="0.95";
	el.style.opacity="0.95";
}

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","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-20)+"px";
}