No I dont get the pop up.
I added the script in home.tpl and product.tpl and added the code to the very bottom of common.js
I'm sure I can use js in the detailed description ... because from the wysiwyg editor they have javascript as an option in the link pull down menu.
and I've stared and stared at this but the link syntax looks correct to me:
<a href="javascript
: onClick=&quot;MM_openBrWindow('/myImageFile.jpg','template','width=400,height=600) ">WORK DARN YOU</a>