function formatCurrency(num)
	{
	num = num.toString().replace(/\$|\,/g,"");
	if (isNaN(num)) num = "0";
	cents = Math.floor((num * 100 + 0.5) % 100);
	num = Math.floor((num * 100 + 0.5) / 100).toString();
	if (cents < 10) cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
		{
		num = num.substring(0, num.length - (4 * i + 3)) + "," + num.substring(num.length - (4 * i + 3));
		}
	return ("$" + num + "." + cents);
	}