Not sure exactly what you want with the drop down.
Simple enough I suppose for the check all.
I am disappointed in myself as usually I remember to slip in the id="" attributes for all my input stuff, but I guess I overlooked that here. Other than that, you can do this with some simple javascript.
Step one:
Open up whois/classes/display.php in a text editor and replace the following:
Replace:
$searchbar .= "<td class=\"whoisSearchTable\"><input type=\"checkbox\" name=\"ext{$i}\" value=\"{$ext}\"" .
With:
$searchbar .= "<td class=\"whoisSearchTable\"><input type=\"checkbox\" name=\"ext{$i}\" id=\"ext{$i}\" value=\"{$ext}\"" .
Step Two:
Add this javascript between the <head> </head> tags of your site:
<script language="Javascript" type="text/javascript">
function tldCheckAll()
{
for(i=0, finished=false; !finished; i++)
{
extBox = document.getElementById("ext" + i);
if (extBox != null)
extBox.checked = true;
else
finished = true;
}
}
</script>
Step Three:
Place a "check all" link anywhere you want via the templates page of the script:
<a href="javascript:tldCheckAll();">Check All</a>
That should do it.