vb.org Archive - Ack! <select> not showing up in search drop down box!

I already posted this at vb.com, and was told to try here.

I've been attempting this forever and it is driving me nuts. I am trying to implement a simple <select> drop down box on top of the search drop down box, right under the current <input> box. I added a section to my forum that I want to be able to search so I added a select box inside of the search DHTML drop down box thing. However, it only appears in Mozilla. In IE, there is just an empty space there. Actually, a few people tell me it works, and others tell me it doesn't work. Any ideas as to what would cause that? I am going nuts.

This is the code which is placed right after the <tr> for the regular search:

HTML Code:

<tr>

                        <td class="thead">Search ICIX Nation</td>

                </tr>

                <tr>

                        <td class="vbmenu_option" title="nohilite">

                        <form action="icixnation2.php?do=search" method="post" name="icix_search" onsubmit="filledin()">

                                <input type="hidden" name="do" value="process" />

                                <input type="hidden" name="showposts" value="0" />

                                <select name="icixcategory" style="width: 180px;">

                                        <optgroup label="Stereo Related">

                                        <option value="source">Source Unit</option>

                                        <option value="speaker">Speaker(s)</option>

                                        <option value="spamp">Speaker Amplifier(s)</option>

                                        <option value="sub">Subwoofer(s)</option>

                                        <option value="subamp">Subwoofer Amplifier(s)</option>

                                        <option value="tweeter">Tweeter(s)</option>

                                        <option value="twamp">Tweeter Amplifier(s)</option>

                                        <option value="wire">Wiring</option>

                                        </optgroup>

                                        <optgroup label="Vehicle Related">

                                        <option value="vehicle_brand">Make</option>

                                        <option value="vehicle_model">Model</option>

                                        </optgroup>

                                        <optgroup label="Location Related">

                                        <option value="city">City</option>

                                        <option value="state">State</option>

                                        </optgroup>

                                </select>

                                <br />

                                <input type="text" class="bginput" name="icixquery" size="20" />

                                <input type="submit" class="button" value="Go"  />

                        </form>

                        </td>

                </tr>

I know HTML fairly decently, so I was thinking it had something to do with just plain having a select box on the DHTML menu with IE. Maybe it parses it differently?

BTW - I also tried a simple <select><option>test</option></select>. Still no go.

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