Help popup in JavaScript

I have made the help function in javascript.

This function will, popup a help message whenever the user clicks on the help link.

You need to include the file help.js which is present in the modules folder.
Example:
<script type="text/javascript" language="javascript" src="/modules/help.js"></script>

Usage:
<a href ="#" id=elementid onClick="helppopup('<elementid>,'the helptesting')">help</a>

Example:
<a href = "#" id="helpLink1" onclick="helppopup('helpLink1','the helptesting')">help</a>

Source Code:
//Javascript Document.
//Author:Saurabh Ajmera
function findPosition( oElement ) {
if( typeof( oElement.offsetParent ) != 'undefined' ) {
for( var posX = 0, posY = 0; oElement; oElement = oElement.offsetParent ) {
posX += oElement.offsetLeft;
posY += oElement.offsetTop;
}
return [ posX, posY ];
} else {
return [ oElement.x, oElement.y ];
}
}
function helppopup(id,text)
{
helpwindow = window.open (" ",
"helpwindow","location=1,scrollbars=1,resizable=1,
width=350,height=250");
Element = document.getElementById(id);
pos = findPosition(Element);
helpwindow.moveTo(pos[0],pos[1]);
helpwindow.document.write(text)
}