Include semicolon to a variable [duplicate]

Hello, I have a small problem, I have a number coming from a sum and I need to assign a mask to that number. I did some tests until it worked though the mask was not correct to the number.

var format = function (format, text) {  
    var array = text.split("");
    return format.replace(/{(.*?)}/g, function (index) {
        return array.splice(0, index.replace(/\D/g, "")).join("");
    });
};

var texto = format("{3}.{3}.{3}.{3},{2}", trasfN);

document.getElementById('calTotal').value = texto;
alert(texto);   

In a test the number is returning this 162.312.0. and the correct one would be to return 16.231,20*