Måske det er den her du tænker på:
<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">
<html>
<head>
<title>Pop up information box</title>
<STYLE TYPE=\"text/css\">
<!--
BODY {OVERFLOW:scroll;OVERFLOW-X:hidden}
.DEK {POSITION:absolute;VISIBILITY:hidden;Z-INDEX:200;}
//-->
</STYLE>
</head>
<body>
<DIV ID=\"dek\" CLASS=\"dek\"></DIV>
<SCRIPT TYPE=\"text/javascript\">
<!--
Xoffset=-60;
Yoffset= 20;
var nav,old,iex=(document.all),yyy=-1000;
if(navigator.appName==\"Netscape\"){(document.layers)?nav=true:old=true;}
if(!old){
var skn=(nav)?document.dek:dek.style;
if(nav)document.captureEvents(Event.MOUSEMOVE);
document.onmousemove=get_mouse;
}
function popup(msg,bak){
var content=\"<TABLE WIDTH=150 BORDER=1 BORDERCOLOR=black CELLPADDING=2 CELLSPACING=0 \"+
\"BGCOLOR=\"+bak+\"><TD ALIGN=center><FONT COLOR=black SIZE=2>\"+msg+\"</FONT></TD></TABLE>\";
if(old){alert(msg);return;}
else{yyy=Yoffset;
if(nav){skn.document.write(content);skn.document.close();skn.visibility=\"visible\"}
if(iex){document.all(\"dek\").innerHTML=content;skn.visibility=\"visible\"}
}
}
function get_mouse(e){
var x=(nav)?e.pageX:event.x+document.body.scrollLeft;skn.left=x+Xoffset;
var y=(nav)?e.pageY:event.y+document.body.scrollTop;skn.top=y+yyy;
}
function kill(){
if(!old){yyy=-1000;skn.visibility=\"hidden\";}
}
//-->
</SCRIPT>
<!--
Sæt det følgende ind i alle links til popups:
ONMOUSEOVER=\"popup(\'Beskrivelse af linket\',\'baggrundsfarve\')\"; ONMOUSEOUT=\"kill()\"
-->
<a href=\"
http://www.eksperten.dk\" ONMOUSEOVER=\"popup(\'Forum for vidensdeling.\',\'lightblue\')\"; ONMOUSEOUT=\"kill()\">Eksperten</a>
<a href=\"
http://www.google.com\" ONMOUSEOVER=\"popup(\'Søgemaskine\',\'lightgreen\')\"; ONMOUSEOUT=\"kill()\">Google</a>
</body>
</html>