selection box -ban kép megjelenítése

<style type="text/css">
<!--
 
    option[value=ohcon]:before { content:url("ohc.gif"); }
    option[value=baerlin]:before { content:url("baer.gif"); }
    option[value=zendo]:before { content:url("zendo.gif"); }
 
-->
</style>
 
..
 
Select Company
<select>
  <option value="ohcon">Oliver Haag IT consulting</option>
  <option value="baerlin">Bärlin Partners</option>
  <option value="zendo">Zendo-Marketing</option>  
</select>