function checkgrouped(obj)
{
	input_qty = $(obj).next('input');
	input_qty.writeAttribute('disabled', !input_qty.readAttribute('disabled'));
}

function addtocartList(obj)
{
	formElementId = $(obj).up('form').readAttribute('id');
	productAddToCartForm = new VarienForm(formElementId);
	if (productAddToCartForm.validator.validate()) {
		productAddToCartForm.form.submit();
	}
}