pop up window size

[liunx]

I have an Alxnet poll and when a user votes a window pops up and displays the current result. How can I change the width and height of this window?<br />
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Here's the code:<br />
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<form target="_BLANK" action="http://pub.alxnet.com/poll" METHOD="POST" ><br />
<input type="hidden" name="id" value="2296638"><br />
<input type="hidden" name="q" value="submit"><br />
Here is the question.<br />
<br><input type="radio" name="rd" value="1">Answer #1<br />
<br><input type="radio" name="rd" value="2">Answer #2<br />
<br><input type="radio" name="rd" value="3">Answer #3<br />
<br><br><center><input type="submit" value="&nbsp;Vote&nbsp;">&nbsp;&nbsp;<!--content-->you can't from that code. if you load a window from another site then you can't altogether.<!--content-->