/*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++){
		/*if(links[i].rel) {
			if(links[i].rel == "tip") Prepare(links[i]);
		}*/
		if(links[i].title) Prepare(links[i]);
	}
}

function Prepare(el){
	var tooltip,t,b,s,l;
	t = el.getAttribute("title");
	if(t != null) {
		el.removeAttribute("title");
		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) {
			if(l.length>30) l = l.substr(0,27) + "...";
			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)+"px";
document.getElementById("btc").style.left=(posx - 255)+"px";
}