$(
	function()
	{
		$('#addform select').change(function() {
			if (this.name!='qty') {
				autoSubmit(this);
			}
		});

		$('#addform select').keyup(function() {
			if (this.name!='qty') {
				autoSubmit(this);
			}
		});
	}
);

function autoSubmit(e) {
	document.forms['addform']['selchange'].value = e.name;
	$('#addform').submit();
}