function ReverseStr( s ) {
	s2 ="";
	for ( i = s.length -1; i  >=0 ; i-- ) {
		s2 += s.charAt(i);
	}
	return s2;
}

function AddComma( price ) {
	price = price.toString();
	price2 = "";
	count = 0;
	price = ReverseStr (price);

	for ( j =0 ; j < price.length / 3; j++ )  {
		for ( i=j*3; i<j*3+3; i++ )  {
			price2 += price.charAt( i );
			if  ( count++ >=  price.length ) break;
		}

		if  ( count >= price.length ) break;
		price2 += ",";
	}

	price2 = ReverseStr (price2);
	return price2;
}