display a row depending upon a select option

Hi all,

I have a select box and if a value is selected then a <tr></tr> will be displayed

like this

<select name=”com”>
<option>-none-</option>
<option value=”1″>1</option>
<option value=”2″>1</option>
<option value=”3″>1</option>
</select>

now if the user selects only 1 then the row will be displayed.if he selects others then no display of the row.

kindly suggest me……….luv………Raj

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