Rounding numbers to 2 digits after comma

Question

I have no idea how to do this? I\'m adding comma numbers, result is of course always a number with way too many digits after the comma. anyone?

Answer 1

I use this:

function round(value, precision) {

	if(precision == 0)
		return Math.round(value);  	

	exp = 1;
	for(i=0;i