submitten naar een popup met forum

<SCRIPT LANGUAGE="JAVASCRIPT" TYPE="TEXT/JAVASCRIPT">... 
function popup() { 
window.open('verzonden.php','Verzonden','menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,width=640,height=480'); 
} 
</SCRIPT>

<SCRIPT LANGUAGE="JAVASCRIPT" TYPE="TEXT/JAVASCRIPT">... 
function popup() { 
window.open('verzonden.php','Verzonden','menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,width=640,height=480'); 
} 
</SCRIPT>

<input type="submit" onclick="javascript:popup()">

<input type="submit" onclick="javascript:popup()">

<form action="verzonden.php" method="post" target="_blank">
<!-- Je form -->
<input type="submit" />
</form>

<form action="verzonden.php" method="post" target="_blank">
<!-- Je form -->
<input type="submit" />
</form>