Resize popup size depending upon longest text in drop down l

Hi Experts,

The scenario is as belwo:

I am opening a popup window which has drop down list box populated dynamically with various options. When I open the popup, the width of popup is fixed. However, the text in list box exceeds which causes it to flow off the popup window. Is there a way to dynamically reset the popup size based upon text size in drop down?

Here is what I am doing:

step1: open popup window

popWin = window.open(urlstring,'','height=120,width=450,resizable=1,toolbar=no,minimize=no,status=no,memubar=no,location=no,scrollbars=no,top=200,left=200');
}

step2: create drop down combo box and populate dynamically
<TABLE border="0" width="100%">
<TR>
<TD></TD>
<TD nowrap>Select an Option:</TD>
<TD></TD>
<TD>
<select name="summaryEventId">
<option value="1">Current Address</option>
<option value="2" selected>Past Address - 01/01/2007</option>
<option value="3">Some large text goes here- 02/19/2007</option>
</select>
</TD>
<TD></TD>
</TR>
</TABLE>

Thanks.