[Colin F]

Just make a form, make a hidden input called threadid and give it the threadid value and then submit it with the button.
Make another hidden input field named "do" and give it a value like "bumpthread" (at least it sounds like you're making something like this )

In the showthread file, add do if ($_REQUEST['do'] == "bumpthread")
{

}
near the top and just write
$_REQUEST['do'] == "default";

make default the default thing...


[edit] showthread.php doesn't use $do.... oh well, I hope you understand what I mean