function update_totals(  )
{
	total = 7;
	total += document.orderform.total_100.value = document.orderform.quantity_100.value*document.orderform.price_100.value;
	total += document.orderform.total_101.value = document.orderform.quantity_101.value*document.orderform.price_101.value;
	total += document.orderform.total_102.value = document.orderform.quantity_102.value*document.orderform.price_102.value;
	total += document.orderform.total_103.value = document.orderform.quantity_103.value*document.orderform.price_103.value;
	total += document.orderform.total_104.value = document.orderform.quantity_104.value*document.orderform.price_104.value;
	total += document.orderform.total_105.value = document.orderform.quantity_105.value*document.orderform.price_105.value;
	total += document.orderform.total_106.value = document.orderform.quantity_106.value*document.orderform.price_106.value;
	total += document.orderform.total_107.value = document.orderform.quantity_107.value*document.orderform.price_107.value;
	total += document.orderform.total_108.value = document.orderform.quantity_108.value*document.orderform.price_108.value;
	document.orderform.total.value = total.toFixed(2);
}