admin and user login

been stuck this for the whole day.. need to seek advice from u guys.. it dont seems to work if i login as normal user... but if i log in as admin, it will redirect me to admin-index.php correctly.

<?php 

// Array for recording errors:
$login_errors = array();

// Validate the email address:
if (filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
	$e = mysqli_real_escape_string ($dbc, $_POST['email']);
} else {
	$login_errors['email'] = 'Please enter a valid email address!';
}

// Validate the password:
if (!empty($_POST['pass'])) {
	$p = mysqli_real_escape_string ($dbc, $_POST['pass']);
} else {
	$login_errors['pass'] = 'Please enter your password!';
}


	
if (empty($login_errors)) { // OK to proceed!



	// Query the database:
//	$q = "SELECT email, password FROM members1 WHERE (email='$e' AND password='$p')";		
	//$q = "SELECT userid, email, firstname, lastname, password FROM members2 WHERE (email='$e' AND password='$p')";	
	$q = "SELECT * FROM members2 WHERE (email='$e' AND admin='1' AND password='$p')";	
	$q2 = "SELECT * FROM members2 WHERE (email='$e' AND admin='0' AND password='$p')";	
		

	$r = mysqli_query ($dbc, $q);
		$r2 = mysqli_query ($dbc, $q2);

			
//$objQuery = mysql_query($q) or die ("Error Query [".$q."]");
	//$r2 = mysqli_query ($dbc, $q2);
	
	if (mysqli_num_rows($r) == 1)   { // A match was made.		
		// Get the data:
		//header('Location: welcome.php');
		
		$welcomepage2 = "admin-index.php";
		
		echo '<script language="javascript" type="text/javascript">window.location.href="'.$welcomepage2.'";</script>';
		
		$row = mysqli_fetch_array ($r, MYSQLI_NUM); 
	$lastname = $row['lastname'];
		$_SESSION['lastname'] = $lastname;			
		$_SESSION['email'] = $_POST['email'];
	
	//session_register("lastname", $lastname); 
	} 
	
	
		
	if (mysqli_num_rows($r) == 1)   { // A match was made.		
		// Get the data:
		//header('Location: welcome.php');
		
		$welcomepage = "welcome.php";
		
		echo '<script language="javascript" type="text/javascript">window.location.href="'.$welcomepage.'";</script>';
		
		$row = mysqli_fetch_array ($r, MYSQLI_NUM); 
	$lastname = $row['lastname'];
		$_SESSION['lastname'] = $lastname;			
		$_SESSION['email'] = $_POST['email'];
	
	//session_register("lastname", $lastname); 
	} 
	

	
	else { // No match was made.
		$login_errors['login'] = 'The email address and password do not match those on file.';
	}
	
} // End of $login_errors IF.

// Omit the closing PHP tag to avoid 'headers already sent' errors!