Update Deniz

class.user.php

<?php
require_once("db_config.php");
class User {
	protected $db;
	public $id = null;
	private static $instance = null;

	/**
	 * Create an Instace of the User Class and Return it.
	 * @return User
	 */
	public static function getInstance(){
		if(self::$instance == null){
			self::$instance = new User();
		}
		return self::$instance;
	}

	/**
	 * Get the Currrent User Session and return the User Data.
	 * @return array|bool Array of the User Data or false if none exists.
	 */
	public static function getUser($i = null){
		// If Given a User Session, Check and Use it.
		if($i !== null && $i instanceof User){
			$use = $i;
		}
		else{
			$use = self::getInstance();
		}

		// If the Session is Valid, Pull the User Data otherwise return false.
		if(isset($_SESSION['uid'])){
			return $use->get_user_by_id($_SESSION['uid']);
		}
		else {
			return false;
		}
	}

	/**
	 * Override the current Value of the Instance.
	 */
	public static function setInstance($i){
		self::$instance = $i;
	}

	/**
	 * Check the Instance Var in the Class.
	 * @return bool If Instance is defined.
	 */
	public static function hasInstance(){
		if(isset(self::$instance) && self::$instance !== null){
			return true;
		}
		return false;
	}

	/**
	 * Update User Account Details
	 * @return bool If the Update was Good.
	 */
	public static function updateUser($uid, $fname, $lname, $username, $email, $password) {
		$i = self::getInstance();
		return $i->update_user($uid, $fname, $lname, $username, $email, $password);
	}

	/**
	 * Update User Account Profile Details
	 * @return bool If the Update was Good.
	 */
	public static function updateProfile($uid, $fname, $lname, $email, $address, $zipcode, $city, $phone) {
		$i = self::getInstance();
		return $i->update_profile($uid, $fname, $lname, $email, $address, $zipcode, $city, $phone);
	}

	public static function has_session(){
		if(session_status() == PHP_SESSION_NONE){
			session_start();
		}
		if( !isset($_SESSION['login']) || !isset($_SESSION['uid']) ){
			return false;
		}
		return true;
	}

	public function __construct(){
		if (session_status() == PHP_SESSION_NONE) {
			session_start();
		}

		if(!class_exists("DB_con")){
			throw new Exception('DB_con Class does NOT Exist! Please Load the Class to Operate!');
		}
		$this->db = new DB_con();
		$this->db = $this->db->ret_obj();
	}

	protected function cleanMyStuff(&$in = ""){
		$in = mysqli_real_escape_string($this->db, $in);
	}

	/**
	 * For Registration, Create new User
	 * @return bool If the User was Created
	 */
	public function reg_user($fname, $lname, $username, $email, $password){
		$this->cleanMyStuff($fname);
		$this->cleanMyStuff($lname);
		$this->cleanMyStuff($username);
		$this->cleanMyStuff($email);
		$this->cleanMyStuff($password);

		$password = sha1($password);
		// Check if the Username or Email is already in use by another User.
		$query = "SELECT * FROM `users` WHERE `uname`='$username' OR `uemail`='$email'";
		$result = $this->db->query($query) or die($this->db->error);
		$count_row = $result->num_rows;

		// If the Username & the Email are not used already then register the account.
		if($count_row == 0){
			$query = "INSERT INTO `users` SET `fname` = '$fname', `lname` = '$lname', `uname` = '$username', `upass` = '$password', `uemail` = '$email'";
			$result = $this->db->query($query) or die($this->db->error);
			return true;
		} else {
			return false;
		}
	}

	/**
	 * For Admins, Update the User Account
	 * @see reg_user
	 * @return bool If the User was Updated
	 */
	public function update_profile($uid, $fname, $lname, $email, $address, $zipcode, $city, $phone){
		$this->cleanMyStuff($uid);
		$this->cleanMyStuff($fname);
		$this->cleanMyStuff($lname);
		$this->cleanMyStuff($email);
		$this->cleanMyStuff($address);
		$this->cleanMyStuff($zipcode);
		$this->cleanMyStuff($city);
		$this->cleanMyStuff($phone);

		$password = sha1($password);
		// Check if the UID is registerd.
		$query = "SELECT * FROM `users` WHERE `uid`='$uid'";
		$result = $this->db->query($query) or die($this->db->error);
		$count_row = $result->num_rows;

		// If the Username & the Email are not used already then register the account.
		if($count_row !== 0){
			$query = "UPDATE  `users` SET  `fname` = '$fname', `lname` = '$lname', `uname` = '$username', `upass` = '$password', `uemail` = '$email' WHERE  `uid` ='$uid'";
			$result = $this->db->query($query) or die($this->db->error);
			return true;
		} else {
			return false;
		}
	}

	/**
	 * For Users, Update Profile
	 * @see reg_user
	 * @return bool If the User was Updated
	 */
	public function update_user($uid, $fname, $lname, $username, $email){
		$this->cleanMyStuff($uid);
		$this->cleanMyStuff($fname);
		$this->cleanMyStuff($lname);
		$this->cleanMyStuff($username);
		$this->cleanMyStuff($email);

		// Check if the UID is registerd.
		$query = "SELECT * FROM `users` WHERE `uid`='$uid'";
		$result = $this->db->query($query) or die($this->db->error);
		$count_row = $result->num_rows;

		// If the Username & the Email are not used already then register the account.
		if($count_row !== 0){
			$query = "UPDATE  `users` SET  `fname` = '$fname', `lname` = '$lname', `uname` = '$username', `uemail` = '$email' WHERE  `uid` ='$uid'";
			$result = $this->db->query($query) or die($this->db->error);
			return true;
		} else {
			return false;
		}
	}

	/**
	 * For Users, Update Password
	 * @see reg_user
	 * @return bool If the User was Updated
	 */
	public function update_password($uid, $password){
		$this->cleanMyStuff($password);

		$password = sha1($password);
		// Check if the UID is registerd.
		$query = "SELECT * FROM `users` WHERE `uid`='$uid'";
		$result = $this->db->query($query) or die($this->db->error);
		$count_row = $result->num_rows;

		// If the Username & the Email are not used already then register the account.
		if($count_row !== 0){
			$query = "UPDATE  `users` SET  `upass` = '".$password."' WHERE  `uid` ='$uid'";
			$result = $this->db->query($query) or die($this->db->error);
			return true;
		} else {
			return false;
		}
	}

	/**
	 * For Users, Check if Passwords Match
	 * @return bool If the Password Matched
	 */
	public function match_password($uid, $password){
		$this->cleanMyStuff($uid);
		$this->cleanMyStuff($username);
		$this->cleanMyStuff($password);

		$password = sha1($password);
		// Check if the UID is registerd.
		$query = "SELECT * FROM `users` WHERE `uid`='$uid'";
		$result = $this->db->query($query) or die($this->db->error);
		$count_row = $result->num_rows;

		// If the Username & the Email are not used already then register the account.
		if($count_row !== 0){
			$query = "SELECT `uid` FROM `users` WHERE `uid`='$uid' AND `upass`='$password'";
			$result = $this->db->query($query) or die($this->db->error);
			return true;
		} else {
			return false;
		}
	}


	/**
	 * For Login Processes, Create the Session and store it.
	 * @return bool If User can Login
	 */
	public function check_login($emailusername, $password){
		$this->cleanMyStuff($emailusername);
		$this->cleanMyStuff($password);
		$password = sha1($password);

		$query = "SELECT `uid` FROM `users` WHERE `uemail`='$emailusername' OR `uname`='$emailusername' AND `upass`='$password'";
		$result = $this->db->query($query) or die($this->db->error);
		$user_data = $result->fetch_array(MYSQLI_ASSOC);
		$count_row = $result->num_rows;

		if ($count_row == 1) {
				unset($_SESSION['permissions']);
				$_SESSION['login'] = true; // this login var will use for the session thing
				$_SESSION['uid'] = $user_data['uid'];
				return true;
		}
		else{
			return false;
		}
	}

	/**
	 * Return the Current Status of the User's Profile
	 * @see fetch_role
	 * @return string User Highest Role
	 */
	public function get_status($uid){
		$this->cleanMyStuff($uid);
		$query = "SELECT * FROM  `roles` INNER JOIN  `roles_and_permissions` ON
				`roles_and_permissions`.`permission_id` =  `roles`.`role_id` WHERE
				`uid` = ".$uid." ORDER BY  `roles`.`order` DESC  LIMIT 0 , 30";
		$result = $this->db->query($query) or die($this->db->error);
		$user_data = $result->fetch_array(MYSQLI_ASSOC);
		if ($user_data) {
			$role = $user_data['role_name'];
		} else {
			$role = 'NONE';
		}
		return $role;
	}

	/**
	 * Apply the User Roles based on input from the form. Auto: Add, Remove.
	 * @return bool true
	 */
	public function update_roles($uid, $roles) {

		$user_roles = $this->fetch_roles_order($uid); // Get all User Roles.
		//$user_roles = array_column($user_roles, "role_id"); // PHP new than 5.5
		$user_roles = array_map(function($item) {
		    return $item["role_id"];
		}, $user_roles);

		$all_roles = $this->fetch_all_roles();
		$all_roles = array_map(function($item) {
				return $item["role_id"];
		}, $all_roles);

		// Loop through all of the Role IDs passed in
		foreach($roles as $index => $roleId){
			if(in_array($roleId, $user_roles)){
				// Already in the User's Account.
				continue;
			}
			else {
				// Role is not not in the User's Account.
				$this->add_role($uid, $roleId);
			}
		}

		$remove = array_diff($all_roles, $roles);
		foreach($remove as $index => $roleId){
			$this->remove_role($uid, $roleId);
		}

		//exit();
		return true;
  }

	/**
	 * Gets the Primary Role of the User's Account
	 * @return string User Highest Role (In Upper Format)
	 */
  public function fetch_role($uid) {
		$this->cleanMyStuff($udi);
		// User Session Exists
			$query = "SELECT * FROM  `roles` INNER JOIN  `roles_and_permissions` ON
				`roles_and_permissions`.`permission_id` =  `roles`.`role_id` WHERE
				`uid` = ".$uid." ORDER BY `roles`.`order` DESC  LIMIT 0 , 30";
			$result = $this->db->query($query) or die($this->db->error);
			$user_data = $result->fetch_array(MYSQLI_ASSOC);
		if(!empty($user_data)){
			return strtoupper($user_data['role_name']);
		} else {
			return "NONE";
		}
  }

	/**
	 * Get All of the Roles the User has Assigned to them.
	 * @return array Role List
	 */
	public function fetch_roles($uid) {
		$user_data = array();
		$query = "SELECT * FROM  `roles` INNER JOIN  `roles_and_permissions` ON
			`roles_and_permissions`.`permission_id` =  `roles`.`role_id` WHERE
			`uid` = ".$uid." ORDER BY  `roles`.`order` DESC  LIMIT 0 , 30";
		// User Session Exists
			$result = $this->db->query($query) or die($this->db->error);
			while($tmp = $result->fetch_array(MYSQLI_ASSOC)){
				$user_data[] = strtoupper($tmp['role_name']);
			}
		// RUN THE MYSQL QUERY TO FETCH THE USER, SAVE INTO $row
		if(!empty($user_data)){
			return $user_data;
		} else {
			return array();
		}
  }

	/**
	 * Get all of the Roles that are for the User raw from the DB.
	 * @return array Role List
	 */
	public function fetch_roles_order($uid) {
		$user_data = array();
		$query = "SELECT * FROM  `roles_and_permissions` INNER JOIN  `roles` ON
					`roles_and_permissions`.`permission_id` =  `roles`.`role_id` WHERE
					`roles_and_permissions`.`uid` = ".$uid." ORDER BY  `roles`.`order` DESC  LIMIT 0 , 30";
		$result = $this->db->query($query) or die($this->db->error);
		while($tmp = $result->fetch_array(MYSQLI_ASSOC)){
			$user_data[] = $tmp;
		}
		return $user_data;
  }

	/**
	 * Get All of the Users in the Database.
	 * @return array $users
	 */
  public function fetch_all_users() {
		$users = array();
		$query = "SELECT * FROM  `users`WHERE `uid` != 0 ORDER BY `uid` DESC  LIMIT 0 , 30";
		// User Session Exists
			$result = $this->db->query($query) or die($this->db->error);
			while($tmp = $result->fetch_array(MYSQLI_ASSOC)){
				unset($tmp['upass']); // Make it safe
				$users[] = $tmp;
			}
		return $users;
  }

	/**
	 * Get All of the Roles in the Database.
	 * @return array $all_roles
	 */
  public function fetch_all_roles() {
		$all_roles = array();
		$query = "SELECT * FROM  `roles` ORDER BY  `order` DESC  LIMIT 0 , 30";
		// User Session Exists
			$result = $this->db->query($query) or die($this->db->error);
			while($tmp = $result->fetch_array(MYSQLI_ASSOC)){
				unset($tmp['upass']); // Make it safe
				$all_roles[] = $tmp;
			}
		return $all_roles;
  }


	/**
	 * Get All of the Users in the Database THAT HAVE ROLES.
	 * @return array $user_data
	 */
  public function fetch_all_users_wr() {
		$user_data = array();
		$query = "SELECT * FROM  `users` INNER JOIN  `roles_and_permissions` ON
			`roles_and_permissions`.`uid` =  `users`.`uid` WHERE
			`users`.`uid` != 0 ORDER BY  `roles`.`order` DESC  LIMIT 0 , 30";
		// User Session Exists
			$result = $this->db->query($query) or die($this->db->error);
			while($tmp = $result->fetch_array(MYSQLI_ASSOC)){
				$user_data[] = $tmprole_name;
			}
		return $user_data;
  }

	/**
	 * Check to See if the User has a Specific Role
	 * @return bool in_array
	 */
	public function has_role($uid, $roleIn = NULL){
		if($roleIn == NULL || $uid == "") { return false; }
		if(is_array($roleIn)){
				$rolesGet = $this->fetch_roles($uid);
				foreach($roleIn as $r){
					if(in_array($r, $rolesGet)) {
						return true;
					}
				}
				return false;
		}
		else{
			$rolesGet = $this->fetch_roles($uid);
			return in_array($roleIn, $rolesGet);
		}
	}

	/**
	 * Add a Role Property to the User's Account.
	 * @return bool True
	 */
	public function add_role($uid, $roleId) {
		$user_data = array();
		$query = "INSERT INTO `login_profile`.`roles_and_permissions` (`uid`, `permission_id`) VALUES ('".$uid."', '".$roleId."');";
		$result = $this->db->query($query) or die($this->db->error);
		return true;
  }

	/**
	 * Remove a Role Property to the User's Account.
	 * @return bool True
	 */
	public function remove_role($uid, $roleId) {
		$user_data = array();
		$query = "DELETE FROM `login_profile`.`roles_and_permissions` WHERE `uid` = '".$uid."' AND `permission_id` = '".$roleId."'";
		$result = $this->db->query($query) or die($this->db->error);
		return true;
  }

	/**
	 * Get the User By Id.
   * @return array MySQL Profile
	 */
	public function get_user_by_id($id){
    $query = "SELECT * FROM `users` WHERE `uid` = " . (int) $id . " LIMIT 1";
    $result = $this->db->query($query) or die($this->db->error);
    return $result->fetch_assoc();
  }

	/**
	 * Connect to the Database and Delete the User Matching the UID.
	 * @return bool True
	 */
	public function delete_user($uid){
		$queryUser = "DELETE FROM `users` WHERE `uid` = '".$uid."'";
		$result = $this->db->query($queryUser) or die($this->db->error);

		$queryPerms = "DELETE FROM `roles_and_permissions` WHERE `uid` = '".$uid."'";
		$result = $this->db->query($queryPerms) or die($this->db->error);
		return true;
	}

  /**
	 * Starting the Session
	 * @return bool false
	 * @return string User Login
	 */
  public function get_session(){
		if(isset($_SESSION['login'])){
			return $_SESSION['login'];
		}
		else {
			return false;
		}
	}

 /**
  * Gets the Session uid
  * @return String The User's Session Id.
  */
	public function get_uid(){
		if(isset($_SESSION['uid'])){
			return $_SESSION['uid'];
		}
		else {
			return false;
		}
	}

	/**
	 * Do a Cleanup of the Session
	 */
  public function user_logout() {
		$_SESSION['login'] = FALSE;
		unset($_SESSION['man_redirect']);
		unset($_SESSION);
		session_destroy();
	}
}


function clean($in = ""){
	global $mysqli;
	return mysqli_real_escape_string($mysqli, $in);
}
function c($in = ""){ return clean($in); }

?>

login.php

<?php
session_start();
require_once('include/class.user.php');
$user = User::getInstance();

if ($user->get_session() && !isset($_GET['q'])){
	echo "User is Logged in.";
	echo "Click <a href=\"?q\">Here</a> to Logout!";
	exit();
}
if (isset($_GET['q'])){
	$user->user_logout();
	header( "Refresh:2; url=login.php", true, 303);
	echo "Ok, You are OUT! Bye, See you next time!";
	exit();
}


function i(&$i, $n = "Data") { if(isset($i) && $i !== "") { return $i; } else { die("Missing ".$n."!"); } }

if (isset($_POST['submit'])) {
	$P = $_POST;
	$login = $user->check_login( i($P['emailusername']), i($P['password']) );
	if($login == true) {
		if($user->has_role($uid = $user->get_uid(), "ADMIN")){
			header("Location: adminPage.php");
		} else {
			header("Location: home.php");
		}
	} else {
		// Login Failed
		echo 'Wrong username or password';
	}
}
?>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>OOP Login Module</title>
    <link rel="stylesheet" href="assets/css/bootstrap.min.css" />
    <link rel="stylesheet" type="text/css" href="assets/css/custom.css">
  </head>

  <body>
    <div class="container">
      <h1>Login Here</h1>
      <center>Admin: Name: spar - Code spar</center>
      <center>Member: Name: hej - Code 1234</center>
      <center>Member2: Name: test - Code 1234</center>
      <form action="" method="POST" name="login">
        <table class="table " width="400">
          <tr>
            <th>UserName or Email:</th>
            <td>
              <input type="text" name="emailusername" required>
            </td>
          </tr>
          <tr>
            <th>Password:</th>
            <td>
              <input type="password" name="password" required>
            </td>
          </tr>
          <tr>
            <td>&nbsp;</td>
            <td>
            Remember me&nbsp;&nbsp;<input id="checkBox" type="checkbox"></input><br>
            <div class="ned">
            <form action="adminPage.php">
              <input class="btn" type="submit" name="submit" value="Login" onclick="return(submitlogin());">
              </form>
              <a class="hoejre" href="forgotpassword.php">forgot password?</a>
              </div>
            </td>
          </tr>
          <tr>
            <td>&nbsp;</td>
            <td><a href="registration.php">Register new user</a></td>
          </tr>
        </table>
      </form>
    </div>
  </body>
</html>

registration.php

<?php
require_once('include/class.user.php');
$user = new User();
$user->get_session();
$uid = $user->get_uid();

define("GENERAL_ERROR", "Field can not be blank!");
define("INVALID_ERROR", "Field is invalid!");
define("LENGTH_ERROR", "Field must be longer!");
$error = array(
	"fname" => "",
	"lname" => "",
	"uname" => "",
	"uemail" => "",
	"upass" => ""
);
$values = array(
	"fname" => "",
	"lname" => "",
	"uname" => "",
	"uemail" => "",
	"upass" => ""
);

if (isset($_POST['submit'])){
	$values['fname'] = strip_tags(filter_input(INPUT_POST, 'fname', FILTER_SANITIZE_STRING));
	$values['lname'] = strip_tags(filter_input(INPUT_POST, 'lname', FILTER_SANITIZE_STRING));
	$values['uname'] = strip_tags(filter_input(INPUT_POST, 'uname', FILTER_SANITIZE_STRING));
	$values['uemail'] = strip_tags(filter_input(INPUT_POST, 'uemail', FILTER_SANITIZE_EMAIL));
	$values['upass'] = strip_tags(filter_input(INPUT_POST, 'upass', FILTER_SANITIZE_STRING));

	$registerSuccess = false; // Registration Failed, Default Value
	if($values['fname'] == "" || $values['lname'] == ""){
		$errors['fname'] = GENERAL_ERROR;
		$errors['lname'] = GENERAL_ERROR;
	}

	else if($values['uname'] == ""){
		$error['uname'] = GENERAL_ERROR;
	}
	else if(strlen($values['uname']) < 6 ){
		$error['uname'] = LENGTH_ERROR;
	}

	else if($values['upass'] == ""){
		$error['upass'] = GENERAL_ERROR;
	}
	else if(strlen($values['upass']) < 6 ){
		$error['upass'] = LENGTH_ERROR;
	}

	else if($values['uemail'] == "" || $values['uemail'] == false){
		$error['uemail'] = INVALID_ERROR;
	}

	else {
		// Do Registration
		$registerSuccess = $user->reg_user($values['fname'], $values['lname'], $values['uname'], $values['uemail'], $values['upass']);
	}

	if ($registerSuccess){
		// Registration Success
		echo "<div class='textcenter'>Registration successful <a href='login.php'>Click here</a> to login</div>";
		if(isset($_POST['man_redirect'])){
			$r = $_POST['man_redirect'];
			header("Location: ".$r);
		}
	} else {

		// Registration Failed
		if(isset($_SESSION['man_redirect'])){
			$_SESSION['man_redirect'] = isset($_POST['man_redirect'])?$_POST['man_redirect']:"index.php"; // Set the Redirect
		}
		else {
			unset($_SESSION['man_redirect']);
		}

	}
}
?>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Register</title>
    <link rel="stylesheet" href="assets/css/bootstrap.min.css" />
	<link rel="stylesheet" href="assets/css/custom.css" />
  </head>

  <body>
		<?php
			if(User::has_session() == true){
				$navItm = "";
				// Offer the Admin Page if Admin
				echo '<link rel="stylesheet" href="assets/css/custom_admin.css"/>';
				if( $user->has_role($uid, array("ADMIN", "MODERATOR") )){
					$navItm = '<a class="navbar-left" href="adminPage.php">Mgr Page</a>';
				}

				echo '<nav class="navbar navbar-default navbar-fixed-top">
					  <div class="container">
							<a class="navbar-left" href="home.php">Home</a>'.
								$navItm
							.'<a class="navbar-right" href="home.php?q=logout">LOGOUT</a>
					  </div>
					</nav>';
			}
		?>

    <div class="container">
      <h1>Registration Here</h1>
      <form action="" method="POST" name="reg">
        <table class="table">
          <tr>
            <th>First Name:</th>
            <td>
							<div><input type="text" name="fname" value="<?php echo $values['fname'] ?>" required></div>
							<span class="error"><?php echo $error['fname']; ?></span>
            </td>
          </tr>
          <tr>
            <th>Last Name:</th>
            <td>
              <div><input type="text" name="lname" value="<?php echo $values['lname'] ?>" required></div>
							<span class="error"><?php echo $error['lname']; ?></span>
            </td>
          </tr>
          <tr>
            <th>User Name:</th>
            <td>
              <div><input type="text" name="uname" value="<?php echo $values['uname'] ?>" required></div>
							<span class="error"><?php echo $error['uname']; ?></span>
            </td>
          </tr>
          <tr>
            <th>Email:</th>
            <td>
              <div><input type="email" name="uemail" value="<?php echo $values['uemail'] ?>" required></div>
							<span class="error"><?php echo $error['uemail']; ?></span>
            </td>
          </tr>
          <tr>
            <th>Password:</th>
            <td>
              <div><input type="password" name="upass" value="<?php echo $values['upass'] ?>" required></div>
							<span class="error"><?php echo $error['upass']; ?></span>
            </td>
          </tr>
          <tr>
            <td>&nbsp;</td>
            <td>
              <input class="btn" type="submit" onclick="window.onbeforeunload = null;" name="submit" value="Register" onclick="return(submitreg());">
            </td>
          </tr>
					<?php
						if(!isset($_SESSION['man_redirect'])){
		          	echo '<tr>
		            	<td>&nbsp;</td>
		            	<td><a href="login.php">Already registered? Click Here!</a></td>
		          	</tr>';
						}
						else {
							echo '<tr>';
								echo '<td>&nbsp;</td><td>';
								echo '(You are Creating a new User, <b>Don\'t Refresh</b>)';
								echo '<input type="hidden" name="man_redirect" value="'.$_SESSION['man_redirect'].'">';
								unset($_SESSION['man_redirect']); // Unset the Session Var.
								echo '<script>/* Enable navigation prompt*/ window.onbeforeunload = function() { return false; };</script>';
							echo '</td></tr>';
						}
					?>
        </table>
      </form>
    </div>

    <script>
      function submitreg() {
        var form = document.reg;
        if (form.name.value == "") {
					alert("Enter Name!");
					return false;
        }
				else if (form.uname.value == "") {
					alert("Enter a Username!");
					return false;
        }
				else if (form.upass.value == "") {
					alert("Enter a Password!");
					return false;
        }
				else if (form.uemail.value == "") {
					alert("Enter an Email Addresss!");
					return false;
        }
      }
    </script>
  </body>
</html>