drop down meny

Så här:

<form name="form1" method="post" action="sida.html" target="iframe">
  <select name="bg" onChange="submit(this);">
    <option selected>sida.asp</option>
    <option value="red">test.asp</option>
  </select>
</form><iframe name="iframe" src="sida.html" width="400" height="300" border="0">
  
<ilayer name="iframe" src="sida.html" width="400" height="300" border="0" left="25" top="44" visibility="show"> 
</ilayer>
</iframe>