here are some valuable javascript functions for getting window width and height a long with the get element X position, and Y position all of this functions are not my invention; its copied from the website and blog listed in the reference list.

 lets start with getWindowDimension:

{JSF, JavaScript} controlling invocation order

I put JSF and JavaScript in a set as the order in the set is not important, and in this post I will speak about the four types of invocation in JSF web application which are:

1. JavaScript Call.
2. JSF Call.
3. JavaScript call, followed by JSF call.
4. JSF call, followed by JavaScript call.

I will give a simple illustration of the usage of each one of the above a long with how you can achieve it.