Untitled

<html>
 <head>
 <title>Admin Login</title>
 </head>
 <body>

 <h2>Admin Login</h2>
 <?php
    if(validation_errors() != null){
     echo '<div class="alert alert-danger">';
     echo validation_errors();
     echo '</div>';
     unset($errorMsg);
      }

        if(isset($errorMsg)){
          echo '<div class="alert alert-danger">';
          echo $errorMsg;
          echo '</div>';
          unset($errorMsg);
        }
?>
 <form action="login" method="post">
 Username : <br />
 <input type="text" name="username" size="10"><br />
 Password : <br />
 <input type="text" name="password" size="30"><br />
 <input type="submit" name="btnSubmit" value="Login">
 </form>
 </body>
</html>