//code used for hover-over tooltips

var DH = 0;
var an = 0;
var al = 0;
var ai = 0;
if (document.getElementById) 
{
	ai = 1; DH = 1;
}
else 
{
	if (document.all) 
	{
		al = 1; DH = 1;
	} 
	else 
	{ 
		browserVersion = parseInt(navigator.appVersion); 
		if ((navigator.appName.indexOf('Netscape') != -1) && 			(browserVersion == 4)) 
		{
			an = 1; DH = 1;
		}
	}
} 

function fd(oi, wS) 
{
	if (ai) return wS ? document.getElementById(oi).style:document.getElementById(oi); 
	if (al) return wS ? document.all[oi].style: document.all[oi]; 
	if (an) return document.layers[oi];
}
function pw() 
{
    return window.innerWidth != null? window.innerWidth: document.body.clientWidth != null? document.body.clientWidth:null;
}

function mouseX(evt) 
{
    if (evt.pageX) 
        return evt.pageX; 
    else if (evt.clientX)
        return evt.clientX + (document.documentElement.scrollLeft ?  document.documentElement.scrollLeft : document.body.scrollLeft); 
    else return null;
}

function mouseY(evt) 
{
    if (evt.pageY) 
        return evt.pageY; 
    else if (evt.clientY)
        return evt.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop); 
    else return null;
}

function popUp(evt,oi) 
{
    if (DH) 
    {
        var wp = pw(); 
        ds = fd(oi,1); 
        dm = fd(oi,0); 
        st = ds.visibility; 
        if (dm.offsetWidth) 
            ew = dm.offsetWidth; 
        else if (dm.clip.width) 
            ew = dm.clip.width; 
            
        if (st == "visible" || st == "show") 
        { 
            ds.visibility = "hidden"; 
        } 
        else 
        {
            tv = mouseY(evt) + 10; //top bottom adjustment
            lv = mouseX(evt)/1.5; //left right adjustment
            if (lv < 2) 
                lv = 2; 
            else if (lv + ew > wp) 
                lv -= ew/2; 
                
            if (!an) 
            {
                lv += 'px';
                tv += 'px';
             } 
             
             ds.left = lv; 
             ds.top = tv; 
             ds.visibility = "visible";
         }
    }
}