<script language=javascript1.1>
document.writeln('<center>',
'Fetch PTR records for this /24 block:<br>',
'<font size="-1">enter IP address</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;...<br>',
'<form name="rdnsblk" action="' + location.pathname + '" method=POST>',
'<input type=text name=lookup value=""><br>',
'<font size="-1">enter perl exclusion regexp</font><br>',
'<input type=text name=regexp value=""><br>',
'<input type=hidden name=page value=rdnsblk>',
'<input type=submit value="Get PTRs">',
'</form>',
'</center>');
document.rdnsblk.lookup.focus();
</script>
<noscript>
<p>
<font size=4 color=red>Javascript must be enabled to use this page</font>
<p>
</noscript>