le code HTML c :
<a href="javascript:void(0)"
onClick="window.open(´page_web.php´,null,´width=32
5,height=330, status=yes, directories=no, toolbar=yes, location=no, menubar=no, scrollbars=no, resizable=no´);" >
Votre Texte</a>
"width=325,height=330" signifient les dimensions de ta pop-up...