function addCommas(ele)
{
	nStr = ele.value;
	
	nStr += '';
	nStr = nStr.replace(/,/g, "")

  x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	
	ele.value = x1 + x2;
}