this is the code [code] <center> <b>Theme Changer</b> <form name="theme" action="theme.php" method="post"> <select name="set" onChange="this.form.submit()"> <option value="">-- select --</option> <option value="style1">3d</option> <option value="style5">black nd white</option> <option value="style18">matrix</option> <option value="style22">blue</option> <option value="style23">green</option> <option value="style25">yellow</option> </select> <input type="submit" name="submit" value="Change" /> </form> </center> [/code] and i have added it to my xhtml site when i use it on nokia 6230 i get error as page not found after i select new theme it works on WEB