<script type="text/javascript">
<!--
function tumunu_sec(deger)
{
form = document.forms[deger];
for (i=0; i < form.elements.length; i++)
{
if ((form.elements[i].type == "checkbox"))
if ((form.elements[i].name != "tumu"))
{
if (form.elements["tumu"].checked == true)
{
form.elements[i].checked = true;
} else {
form.elements[i].checked = false;
}
}
}
}


//-->
</script>
<form method="post" action="sil.asp">
<input type="checkbox" name="tumu" onclick="tumunu_sec(0)"/>Tümünü Seç<br>
<input type="checkbox" name="id" value="1"/><br>
<input type="checkbox" name="id" value="2"/><br>
<input type="checkbox" name="id" value="3"/><br>
<input type="checkbox" name="id" value="4"/><br>
</form>