Si usas Dreamweaver usa el objeto "Menu de Salto" que esta en la ficha Formulario, al lado de lista
Cita: <script type="text/JavaScript">
<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}
//-->
</script>
<form name="form1">
<select name="menu3" onChange="MM_jumpMenu('parent',this,1)">
<option value="<A href="http://www.google.com">Google</option">http://www.google.com">Google</option>
<option value="<A href="http://www.yahoo.es">Yahoo</option">http://www.yahoo.es">Yahoo</option>
<option value="<A href="http://www.hotmail.com">Hotmail</option">http://www.hotmail.com">Hotmail</option>
</select>
</form>