Dar formato a un numero por JavaScript

gistfile1.txt

var number = 10000000.00;

if (window.Intl && typeof window.Intl === "object") {
    numberFormatted = new Intl.NumberFormat("es-VE", {minimumFractionDigits: 2}).format(number);
} else {
    // fallback if Intl is not supported
    numberFormated = number;
}

alert(numberFormatted);