Is there a way to hide option or optgroup HTML elements? I've tried calling hide() in jQuery, and also using regular Javascript to set style.display='none'.
It works in Firefox but not in any other browsers. Actually removing them from the DOM does work, so perhaps there's a way to save each DOM element when it's removed, and reinsert them in the same place?
My HTML is like this:
<select name="propsearch[area]" id="propsearch_area">
    <option value="0">- Any -</option>
    <optgroup label="Bristol">
        <option  value="Hotwells">Hotwells</option>
        <option  value="Montpelier">Montpelier</option>
    </optgroup>
    <optgroup label="Cardiff">
        <option  value="Heath">Heath</option>
        <option  value="Roath">Roath</option>
    </optgroup>
    <optgroup label="Exeter">
        <option  value="Pennsylvania Road">Pennsylvania Road</option>
        <option  value="Lower North Street">Lower North Street</option>
    </optgroup>
    <optgroup label="Swansea">
        <option  value="Brynmill">Brynmill</option>
        <option  value="Uplands">Uplands</option>
    </optgroup>
</select>