function getInternetExplorerVersion() {
	var rv = -1; // Return value assumes failure.
	if (navigator.appName == 'Microsoft Internet Explorer') {
		var ua = navigator.userAgent;
		var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
		if (re.exec(ua) != null)
			rv = parseFloat(RegExp.$1);
	}
	return rv;
}
<!--

//Pop up information box II (Mike McGrath (mike_mcgrath@lineone.net,  http://website.lineone.net/~mike_mcgrath))
//Permission granted to Dynamicdrive.com to include script in archive
//For this and 100's more DHTML scripts, visit http://dynamicdrive.com

Xoffset=-100;    // modify these values to ...
Yoffset= 20;    // change the popup position.

var old,skn,iex=(document.all),yyy=-1000;

var ns4=document.layers;
var ns6=document.getElementById&&!document.all;
var ie4=document.all;
var ie8 = false;

if(getInternetExplorerVersion() >= 7.0) {
	ie8 = true;
}

if (ns4)
skn=document.dek;
else if (ns6)
skn=document.getElementById("dek").style;
else if (ie4)
skn=document.all.dek.style;
if(ns4)document.captureEvents(Event.MOUSEMOVE);
else{
skn.visibility="visible";
skn.display="none";
}
document.onmousemove=get_mouse;

function popup(msg,bak){
var content="<TABLE  WIDTH=200 BORDER=0 bgCOLOR=#000000 CELLPADDING=2 CELLSPACING=1><TD BGCOLOR=#"+bak+" align=center>"+msg+"</TD></TABLE>";
yyy=Yoffset;
 if(ns4){skn.document.write(content);skn.document.close();skn.visibility="visible";}
 if(ns6){document.getElementById("dek").innerHTML=content;skn.display='';}
 if(ie4){document.all("dek").innerHTML=content;skn.display='';}
}

function get_mouse(e){
var x=(ns4||ns6)?e.pageX:event.x+document.documentElement.scrollLeft;
document.getElementById('dek').style.left=(x+Xoffset) + 'px';
if(ie8) {
	var y=(ns4||ns6)?e.pageY:event.y+0;
} else {
	var y=(ns4||ns6)?e.pageY:event.y+document.documentElement.scrollTop;
}
document.getElementById('dek').style.top=(y+yyy) + 'px';
}

function kill(){
yyy=-1000;
if(ns4){skn.visibility="hidden";}
else if (ns6||ie4)
skn.display="none";
}

//-->