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);
document.getElementById('footer').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]);
    }
var imgs = document.getElementsByTagName('IMG');
for(i=0;i<imgs.length;i++){
    imgs[i].className = 'img_normal';
    ImgTip(imgs[i]);
    }
}
function ImgTip(el)
{
    var tooltip,t,b,s,l;
    t=el.getAttribute("alt");
    if(t!=null&&typeof(t)!='undefined'&&t!=''){
        //if(t==null || t.length==0) t="link:";
        el.removeAttribute("alt");
        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>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;
    }
    else
    {
        el.onmouseover=showTooltip;
        el.onmouseout=hideTooltip;
    }
}
function Prepare(el){
var tooltip,t,b,s,l;
t=el.getAttribute("title");
if(t!=null&&typeof(t)!='undefined'&&t!=''){
    //if(t==null || t.length==0) t="link:";
    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.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){
if(this.tooltip!=null&&typeof(this.tooltip)!='undefined'){
document.getElementById("btc").appendChild(this.tooltip);}
e = e || window.event;
var obj = e.srcElement;
if(obj.tagName.toLowerCase() == 'img')
    obj.className = 'img_hover';
Locate(e);
}

function hideTooltip(e){
if(this.tooltip!=null&&typeof(this.tooltip)!='undefined'){
var d=document.getElementById("btc");
if(d.childNodes.length>0) d.removeChild(d.firstChild);}
e = e || window.event;
var obj = e.srcElement;
if(obj.tagName.toLowerCase() == 'img')
    obj.className = 'img_normal';
}

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";
}