[walik]

<script Language="JavaScript">
var links = new Array("<script language="JavaScript" type="text/javascript" src="........"></sc*!*"+"*/!*ript>","<script language="JavaScript" type="text/javascript" src="........."></s*!*"+"*/!*cript>");
 
var los = Math.floor(Math.random() * links.length)
document.write (links[los]);
 
</script>

Так попробуйте.