ellers kan du prøve at se om dette HTML kan inspirere dig (lavet meget hurtigt, og da jeg ikke er javascript haj så kan det sikkert laves meget nemmere):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"
http://www.w3.org/TR/html4/loose.dtd"><html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}
//-->
function set_adress(){
var adresse=location.search.substring(0);
var adresse=adresse.replace("?adresse=","");
document.form2.adresse.value=adresse;
}
</script>
</head>
<body onLoad="set_adress();">
<form name="form1">
<select name="menu1" onChange="MM_jumpMenu('parent',this,0)">
<option>-----</option>
<option value="/test5.htm?adresse=a@b.se">adresse_1</option>
<option value="/test5.htm?adresse=tester@test.dk">adresse_2</option>
</select>
</form>
<form name="form2" method="post" action="">
<table width="400" border="0" cellspacing="0" cellpadding="2">
<tr>
<td>adresse</td>
<td><input name="adresse" type="text" value=""></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
</form>
<p> </p>
</body>
</html>