haciendolo funcion:
<html>
<head>
<title>Popup Windows (V 4.5)</title>
<script language="javascript" src="popup.js"></script>
<script language="javascript">
function popupxx()
{
new popUp(210, 50, 700, 430, "Div1", "forma.htm?clave=1", "white", "#00385c", "16pt serif", "Centro Universitario Hispano Mexicano", "#7B95CA", "white", "#7B95CA", "#00385c", "black", true, false, false, true, true, false,"","","cir_close.gif","resize.gif");
}
</script>
</head>
<body onload="javascript
:popupxx();">
<a href="javascript
:popupxx();">PopUp</a>
</body>
</html>
Espero que sirva, saludos.