/*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("img");
	else links=document.getElementById(id).getElementsByTagName("img");
	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) {
		el.removeAttribute("title");
		el.removeAttribute("alt");
		tooltip=CreateEl("span","tooltip");
		s=CreateEl("span","top");
		s.appendChild(document.createTextNode(t));
		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:100)";
	el.style.KHTMLOpacity="1.0";
	el.style.MozOpacity="1.0";
	el.style.opacity="1.0";
}

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","/wordpress/wp-content/themes/classic/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+30)+"px";
	document.getElementById("btc").style.left=(posx-0)+"px";
}