[kh99]

Lynne is probably right. What you might be able to do is put the form somewhere outside the inline mod form, and remove the submit button (the rest of the fields are hidden so it shouldn't show up at all. Then use a js function to set the threadid and submit the form. I haven't tested it at all, but something like:

<script type="text/javascript">
function move_thread_to_forum(threadid)
{
   if ("move_thread_to_forum" in document.forms)
   {
      var form = document.forms["move_thread_to_forum"];

      form.action += threadid;
      form.elements['threadids'].value = threadid;
      form.submit();
   }
}
</script>
<form name="move_thread_to_forum" method="post" action="inlinemod.php?do=domovethread&amp;threadids=">
<input type="hidden" name="s" value="$session[sessionhash]" />
<input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" />
<input type="hidden" name="destforumid" value="225">
<input type="hidden" name="threadids" value="0">
<input type="hidden" name="do" value="domovethreads">
<input type="hidden" name="redirect" value="none" id="rb_redirect_none" checked="checked" />
</form>

and then for the button:

<button type="button" value="Move thread to X" onClick="move_thread_to_forum($thread[threadid])">

again I didn't try it, could have typos or other problems.