function formatCurrency(num) {
	num = num.toString().replace(/,/g,'');

	if ( isNaN( num) || !isFinite(num))
		num = "0";
		
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num * 100 + 0.50000000001);
	cents = num % 100;
	num = Math.floor(num / 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));
		
	num = (((sign)?'':'-') + num + '.' + cents);
		
	return num;
}

function formatNumber(num) {
	num = num.toString().replace(/,/g,'');
	
	if ( isNaN( num) || !isFinite(num))
		num = "0";
		
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num * 100 + 0.50000000001);
	num = Math.floor(num / 100).toString();

	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));
		
	num = ((sign)?'':'-') + num;
		
	return num;
}