Prøv kermit:
<html>
<head>
<title>Hent telefonnummer</title>
<META NAME="Generator" CONTENT="Stone's WebWriter 3.5">
<script language="javascript" type="text/javascript">
function searchTlf(val){
if(val.match(/^\d{8}$/)){
window.MyFrame.location="
http://www.kermit.dk/socket.asp?tlf="+val; }
}
</script>
</head>
<body>
<div align="left">
<table border="0" cellpadding="2" cellspacing="1" width="400">
<tr>
<td width="60" bgcolor="#ECEBEA"><font face="Verdana" size="1" color="#A61A1A"><b> Tlf</b></font></td>
<td width="336" bgcolor="#ECEBEA"><input type="text" name="tlf" size="20" style="position: relative; width: 100%" onkeyup="searchTlf(this.value);"></td>
</tr>
</table>
</div>
<iframe id="MyFrame" name="MyFrame" style="width: 800; height: 800;">noget</iframe>
</body>
</html>