Get item below another item in JavaScript

If you 开发者_如何学Gohave a document full of absolute positioned items and you set a document click handler (document.onclick = handler). Is it possible to get all objects that share the mouse position? i.e. two div boxes overlapped, not only the top one

Use the following algorithm:

1. find out the x and y coordinates of mouse.
2. Use document.elementFromPoint, add returned element to array.
3. Hide that element using display:none
4. Go to 2 until returned element is document.body
5. Display all hidden elements.