<?php
    if ( !$_SESSION['uid'] ) {
        if ( !$_POST['submit'] ) {
        ?>
    <form action="?page=Login} method="post">
        <table>
         <tr>
            <td>Username</td>
            <td><input type="text" name="username"></td>
         </tr>
        <tr>
            <td colspan="2">
             <input type="sumbit" value="Login" name="sumbit">
            </td>
        </tr>
    </table>
    </form>
        <?php
    } else {
        $username = $_POST['username'];
        $password = md5($_POST['password']);

        $errors = array();

        if ( !$username ) {
            $errors[1] = "The username field is blank.";
        }

        if ( !$password ) {
            $errors[2] = "The Password field is blank.";
        }

        $sql = "SELECT * FROM `users` WHERE `name`='$username'";

        $res = mysql_query($sql) or die(mysql_error());

        $exists = mysql_num_rows($res);

        if ( count($exists) == 0 ) {
            $errors[3] = "The username does not exist.";
        } else {

            $sql = "SELECT * FROM `users` WHERE `name`='$username' AND `password`='$password'";

            $res = mysql_query($sql) or die(mysql_error());

            $exists = mysql_num_rows($res);

            if ( count($exists) == 0 ) {
                $errors[4] = "the username and password do not match.";
            }

        }

        if (count($errors) > 0 ) {
            foreach ( $errors as $errors ) {

            }


        }

        }
    }
        echo "You are already Logged in!";

        include ("pages/Home.php");
    }
?>