submit(); is not a function

[Dennis]

<script language="JavaScript" type="text/javascript">
function sure() {
var todo = confirm('Are you sure you want to delete this entry?');
if (todo) {
document.feditgig.del.value = "true";
document.feditgig.submit();
}
}
</script>

<form name="feditgig" action="ciao.php" method="post">
<input type="text" name="del">
</form>

<input type="button" onClick="sure()">


moz non mi dice niente... :master: