function changeDisplayedTotal(totalBox, newPrice, sourceSelect)
{
	var numItem = sourceSelect.options[sourceSelect.selectedIndex].value;

	var newTotal = newPrice*numItem;

	totalBox.value=newTotal;

	var overallTotal = extraSelections.overallTotal.value;

	overallTotal = (overallTotal*1) + newTotal;

	extraSelections.overallTotal.value = overallTotal;

	getTotal();
}