// JavaScript Document
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");  
   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: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+1)+"px";  
   document.getElementById("btc").style.left=(posx-20)+"px";  
   }