public static function show($user)
    {
        ###(HTML)
        ?>
		<!DOCTYPE html>
		<html>
			<?php 
        MasterView::insertHead(null);
        ?>
			<body>
				<?php 
        MasterView::insertNav(null);
        LogInView::insertContent($user);
        MasterView::insertFooter(null);
        ?>
			</body>
		</html>
		<?php 
        ###(ENDHTML)
    }
 public static function run()
 {
     if ($_SERVER["REQUEST_METHOD"] == "POST") {
         if (isset($_POST["handle"]) && isset($_POST["password"])) {
             $handle = $_POST["handle"];
             $password = $_POST["password"];
             if (UserDatabase::validatePassword($handle, $password)) {
                 $user = UserDatabase::getUserByHandle($handle);
                 if (CookieController::setSessionCookie($user)) {
                     header("Location: dashboard");
                 } else {
                     $user->setError("login", "LOG_IN_FAILED");
                     LogInController::show($user);
                 }
             } else {
                 LogInView::show(null);
             }
         }
     } else {
         LogInView::show(null);
     }
 }