<form action="./ucp.php?mode=login" method="post">
            <div data-role="fieldcontain">
                <label for="username">Username:</label>
                <input type="text" name="username" id="username" data-theme="c" />
            </div>
            <div data-role="fieldcontain">
                <label for="password">Password:</label>
                <input type="password" name="password" id="password" data-theme="c" />
            </div>

            <div data-role="fieldcontain">
                <input type="checkbox" name="autologin" id="autologin" data-theme="c" />
                <label for="autologin">Log me on automatically each visit</label>
            </div>
            <div data-role="fieldcontain">
                <input type="checkbox" name="viewonline" id="viewonline" data-theme="c" />
                <label for="viewonline">Hide my online status this session</label>
            </div>

            <div data-role="fieldcontain">
                <input type="hidden" name="redirect" value="./ucp.php?mode=login" />
 <input type="hidden" name="sid" value="14ea3fb55cb8e8731b6412de2b2c9c2c" />
<input type="hidden" name="redirect" value="index.php" />

                <button type="submit" data-theme="b">Login</button>

                    <br /><br /><a href="./ucp.php?mode=register" data-role="button">Register</a>

            </div>
        </form>