Number.prototype.toMoney = function(decimals, decimal_sep, thousands_sep) 
{  
   var n = this, 
   c = isNaN(decimals) ? 2 : Math.abs(decimals), 
   d = decimal_sep || ',', 
   t = (typeof thousands_sep === 'undefined') ? '.' : thousands_sep, 
   
   sign = (n < 0) ? '-' : '', 
   
   i = parseInt(n = Math.abs(n).toFixed(c)) + '',  
 
   j = ((j = i.length) > 3) ? j % 3 : 0;
   
   return sign + (j ? i.substr(0, j) + t : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : '');
}