Multiple diffrent window size popup windows - Help

Hello, I am looking for a script that allows multiple popup sized windows. The site will have several links to games and when they click on a link it needs to open a popup. But each game is various sizes so I need the ability to change popup window demensions.

The script I am currently using is:
<script language="javascript" type="text/javascript">
<!--
function popitup(url)
{
newwindow=window.open(url,'name','height=550,width=600,top=50,left=200');
if (window.focus) {newwindow.focus()}
return false;
}

// -->
</script>


Link for popup code:
<a href="/games/pool.php" onclick="return popitup('/games/pool.php')">3D Pool Deluxe</a>

Thank you, the only problem with this script is I can not change the demensions of the popup for new windows the are all the same demensions

Please Help
Shawn

PS - Also is there a script that auto creates the dimensions based on the demensions needed? Example the flash games was 500x600 so it would make a popup 600x700 (the extra 100 pixels would be to create a border around game. Just curious, thanks

If all the links open in the same popup window:
function popitup(url, w, h)
{
var newW = w + 100; //add border
var newH = h + 100; //add border
var newwindow=window.open(url, 'name', 'height='+newH+', width='+newW+', top=50, left=200');
newwindow.resizeTo(newW, newH); //if popup window is already open, the size specified in window.open does not take effect, so we need to resize it.
newwindow.focus();
return false;
}
...
<a href="/games/pool.php" onclick="return popitup(this.href, 500, 400)">3D Pool Deluxe</a>

If all the links open in each own popup window:
function popitup(url, target, w, h)
{
var newW = w + 100; //add border
var newH = h + 100; //add border
var newwindow=window.open(url, target, 'height='+newH+', width='+newW+', top=50, left=200');
newwindow.focus();
return false;
}
...
<a href="/games/pool.php" target="_poolWin" onclick="return popitup(this.href, this.target, 500, 400)">3D Pool Deluxe</a>
<a href="/games/game2.php" target="_game2Win" onclick="return popitup(this.href, this.target, 800, 600)">Game 2</a>
<a href="/games/game3.php" target="_game3Win" onclick="return popitup(this.href, this.target, 400, 400)">Game 3</a>
...

I will try that as soon as I wake up, been at this so long looking at diffrent scripts I think im about to go into a coma.

But I like the idea of one popup that can resize the popup on the fly based on the content in the popup

Shawn