How to get "top" and "left" values ?

[doctor_james]

Hi,

I have a button and I want it do open a box next to itself on mousemove or mouseover events. But since the position of this button is dynamic , I don't know to set top and left values .

any ideas ..?

thanks in advance.

[xenophobia]

I would suggest you to use the prototype.js to solve all your js problems.

 

prototype is a javascript library file that provide a lot of function that can ease your task in programming javascript.

(You can get the element's position easily.)

 

www.prototypejs.org

[wrongmove18]

var top = document.getElementById("ID").offsetTop;
var left = document.getElementById("ID").offsetLeft;

[xenophobia]

That not always the true position. Especially they are relatively positioned.

 

The position are counted to their parent node instead of the actual document.