Hi here is the login page
PHP Code:
<?
session_start
();  
session_register("login_session");  
$username "";
$password "";

if (isset(
$_POST["Username"]))
   
$username $_POST["Username"];
if (isset(
$_POST["Password"]))
   
$password $_POST["Password"];

if (
$username != "" && $password != "") {

   
$link mysql_connect("localhost","root","root");
   
mysql_select_db("database"); 

   
$sql "SELECT * FROM trainee WHERE password='";
   
$sql.= $password."' AND username='".$username."'";
   
$result mysql_query($sql); 
   if (
mysql_fetch_row($result) != false) {

      
$_SESSION["login_session"] = true;
      if (
$username "trainee"){
      
header("Location: student.php");}
    }else 
        echo 
'<script type="text/javascript">
        window.onload=function(){alert("It is incorrect! Please enter again!");} 
        </script>'
;
   
mysql_close($link);
}
?>
Below is the form:
HTML Code:
<div class="sidebar">
          <div class="sidebar_item" id="login_form">
            <p>&nbsp;</p>
            <form method="post" action="login_stu.php">
			<fieldset>
			<legend align="center">Trainee Login</legend>
              <p>
                <label for="ID"> Username:</label>
                <input type="text" name="Username" />
              </p>
              <p>
                <label for="PASSWORD"> Password:<br />
                </label>
                <input type="password" name="Password" />
              </p>
				<p align="center">
                <input type="submit" name="submit" value="Login" style="height:1.7em; width:3.5em;"/>
				</p>
			  </fieldset>
            </form>
          </div> 
        </div> 
I got another page requiring me to display the username
And I have tried to use
PHP Code:
session_start(); 
echo 
$_SESSION['username'
or
PHP Code:
session_start(); 
echo 
$username
, etc.

Any ideas? Thank you.