/*javascript for Bubble Tooltips by DM Guthrie of NavG and Mcon Systems */

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";
h.style.zIndex="9";
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="Click Me...";
tl=t.length;
el.removeAttribute("title");
tooltip=CreateEl("span","tooltipn");
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)+"...";
//l="";
//b.appendChild(document.createTextNode(l));
//b.appendChild(document.createTextNode(tl));
tooltip.appendChild(b);
Effects.setOpacity(tooltip);
el.tooltip=tooltip;
el.onmouseover=showTooltip;
el.onmouseout=hideTooltip;
el.onmousemove=Locate;
}

function showTooltip(e){
document.getElementById("btc").appendChild(this.tooltip);
Effects.fadeIn(this.tooltip,"0.90");
Locate(e);
}

function hideTooltip(e){
var d=document.getElementById("btc");
if(d.childNodes.length>0) d.removeChild(d.firstChild);
}

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;
var ah=0, aw=0, avh=0, avw=0;
ah=screen.height;
aw=screen.width;
avh=screen.availheight;
avw=screen.availwidth;
var scrlltop=0;
var poscy=0;
if(e.pageX || e.pageY){
    posx=e.pageX; posy=e.pageY;
    poscy=e.clientY;
    }
else if(e.clientX || e.clientY){
    if(document.documentElement.scrollTop){
    scrlltop=document.documentElement.scrollTop;
    poscy=e.clientY;
        posx=e.clientX+document.documentElement.scrollLeft;
        posy=e.clientY+document.documentElement.scrollTop;
        }
    else{
    scrlltop=document.body.scrollTop;
    poscy=e.clientY;
        posx=e.clientX+document.body.scrollLeft;
        posy=e.clientY+document.body.scrollTop;
        }
    }

ht=document.getElementById("btc").offsetHeight;
if(poscy>=ah*.65){
if(ht>0)posy =(posy)-ht-35;
}
if(posx>=(aw*.86))posx=posx-100;
else if(posx<=(aw*.1))posx=posx+100;
document.getElementById("btc").style.top=(posy+30)+"px";
document.getElementById("btc").style.left=(posx-100)+"px";
//document.getElementById("btc").style.top=(posy-15)+"px";
//document.getElementById("btc").style.left=(posx+15)+"px";
}

var Effects = {
	fadeIn : function (elem,maxOpac){
		elem.fadeIn = Effects._fadeIn;
		elem.maxOpac = maxOpac;
		elem.curOpac = 0;
		this.cancelCurrent();
		elem.fadeIn();
	},
	cancelCurrent : function() {
		clearTimeout(window.evtId);
	},
	_fadeIn : function() {
		if( (+this.curOpac) < (+this.maxOpac) ){
			this.curOpac = (+this.curOpac)+(0.05);
			Effects.setOpacity(this,this.curOpac);
			window.fadeInElem = this;
			window.evtId = setTimeout(function(){this.fadeInElem.fadeIn()},20);
		} else {
			Effects.setOpacity(this,this.maxOpac);
			window.fadeInElem = null;
		}
	},
		setOpacity : function (elem,opac){
		elem.style.filter="alpha(opacity:"+ ((+opac)*100) +")";
		elem.style.KHTMLOpacity=opac;
		elem.style.MozOpacity=opac;
		elem.style.opacity=opac;
	}
}