well a form is not an attribute of a div, so i will guess your div should exist inside a form.
you can create an onclick event in your div and do what you want. since divs are not form fields, i created a hidden div and made the onclick event set the value of the hidden div before it submits the form.
HTML Code:
<form name="myform" method="POST" action="somescript.php">
<input type="hidden" id="myhiddenfield">
<div onclick="document.getElementById('myhiddenfield').value='452153'; document.forms['myform'].submit();"></div>
</form>
it's my best guess to what you are trying to do.