<script language="javascript"> //writes in the iframe var contPage = (location.search.substring(1))? location.search.substring(1) : 'index.html'; var myDomain = "wondershop"; //now check to see that myDomain is part of the content page string var contValid = contPage.search(myDomain); if (contValid == -1) contPage = "home.php"; else contPage = unescape(contPage); </script>