15/07/2012 Development / java script

Funçãozinha pra formatar Dimdim!

function formatCurrency(num){
    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(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 (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 (((sign) ? '' : '-') + 'R$' + num + '.' + cents);
}