javascript element distance from top

1function getPosition(element) {
2    var xPosition = 0;
3    var yPosition = 0;
4
5    while(element) {
6        xPosition += (element.offsetLeft - element.scrollLeft + element.clientLeft);
7        yPosition += (element.offsetTop - element.scrollTop + element.clientTop);
8        element = element.offsetParent;
9    }
10
11    return { x: xPosition, y: yPosition };
12}