Jump menus and cross browser compatibility

[severence]

hi guys, i appreciate any help.
im designing a game website, ill make this short
http://www.maxgamingservers.com/serverspy.html

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i have a jump menu at that address, what it does is when u select one of the game names, a javascript popup window comes into play with the associated link. if you look at that page and use the drop down menus in firefox, it works flawlessly. however when i look at it in IE, not a thing happens and i have gone nuts trying to figure out why.
could anyone please help me out, heres a sample of the code and you can also obviously see the whole thing in the view source.
Thanks in advance.

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<td height="30" align="center" valign="middle"><form name="form" id="form"><div align="center">
<select name="jumpMenu" id="jumpMenu">
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230736','Team Fortress 2','width=600,height=600')">Team Fortress 2</option>
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230737','CSS Zombie','width=600,height=600')">CSS Zombie</option>
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230738','CSS Gungame','width=600,height=600')">CSS Gungame</option>
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230739','Unreal Tournament 99','width=600,height=600')">Unreal Tournament 99</option>
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230740','BBz - Call of Duty 4','width=600,height=600')">BBz COD4</option>
<option value="javascript:;" onclick="MM_openBrWindow('http://img.serverspy.net/images/monitor2/smon4.swf?mid=230756','Max Gaming - Call of Duty 4','width=600,height=600')">Max COD4</option>
</select>
</div>
</form>
</td>