CI框架，表述提交没有反应，这是为什么呢

<br />
<form class="login active" action="http://localhost/~chrisfu/CI/index.php/login/checklogin" method="post"><br />
						<h3>Login</h3><br />
						<div><br />
							<label>Username:</label><br />
							<input type="text" name="name"/><br />
							<span class="error">This is an error</span><br />
						</div><br />
						<div><br />
							<label>Password: <a href="forgot_password.php" rel="forgot_password" class="forgot linkform">Forgot your password?</a></label><br />
							<input type="password" name="psword"/><br />
							<span class="error">This is an error</span><br />
						</div><br />
						<div class="bottom" ><br />
							<div class="remember"><input type="checkbox" /><span>Keep me logged in</span></div><br />
							<input type="submit" value="Login" name="submit"></input><br />
							<a href="register.php" rel="register" class="linkform">You don't have an account yet? Register here</a><br />
							<div class="clear"></div><br />
						</div><br />
					</form><br />

<br />
<?php<br />
class Login extends CI_Controller{<br />
	function index(){<br />
		$this->load->view('index');<br />
	}<br />
	function checklogin(){<br />
		$this->load->model('test_m');<br />
		$user=$this->test_m->user_select($_POST['name']);<br />
		<br />
		if($user){<br />
			if($user[0]->upass==$_POST['pword']){<br />
				echo "password right";<br />
				$this->load->library('session');<br />
				$arr=array('uid'=>$user[0]->uid);<br />
				$this->session->set_userdata($arr);<br />
				echo "<br>";<br />
				echo $this->session->userdata('uid');<br />
			}else{<br />
					echo "password wrong";<br />
			}<br />
		}else{<br />
			echo "user not exist";<br />
		}<br />
	}<br />
}<br />
	<br />
?><br />