site in the center of the screen?

Hi!
How can I make that my site will be in the center of the screen...no meter how big is the screen???

Because at a 15' monitor it is in the center(by heigth), but at the 17' monitor it is in the top side...because of the bigger screen size!

So any idea? PLz helP!

if it's in a window.. just use frames or a table structure
width in %
-----------------
| | | |
| |-------| |
| | x | |
| | | |
| |-------| |
| | | |
-----------------

If you wanted, say, a 640x480 table in the centre of the screen:

Code:

---

<table cellpadding=0px cellspacing=0px style="width:100%;height:100%;">
<tr>
<td align=center valign=middle style="width:640px;height:480px">
*table content
</td>
</tr>
</table>

---