function addItem(item)
{
	document.purchase.purpose.value = "ADD";
	document.purchase.item.value = item;
	document.purchase.submit();
}
function removeItem(item)
{
	document.purchase.purpose.value = "REMOVE";
	document.purchase.item.value = item;
	document.purchase.submit();
}
function clearAll()
{
	document.purchase.purpose.value = "CLEAR";
	document.purchase.submit();
}