Centering a popup

[MrAdam]

Hi im trying to create a kind of pop up, much like the "My Assistant" menu on this forum. A can create the menu itself quite easily, just my problem is positioning it. I want to create it dead center horiztonally (not so bothered about vertically). I've tried using "screen.width", and then doing few sums to create a from left number, but it's not going well. Does anybody already have a script, or know the best way of doing it?-Thanks

[Webworldx]

Dead horizontal is screen.width minus half the size of your popup window. (or availWidth if you want to be picky)

[MrAdam]

it's not? .. if my pop up was say 400px wide, and my res like 1024, it would be 824px from the left, definately not the middle. i would have thought it would be: '(screen.width - popupWidth) / 2' ??but i can't seem to get that to work...:: UPDATE ::

var promptWidth = 400;var fromLeft = ((screen.width - promptWidth) / 2) - 21;

.. done it

[Webworldx]

I meant half screen width, sorry - was typing fast half avail width, half popup window