$query = mysql_query("SELECT * FROM clients WHERE username = '$username' or email = '$username'");

		$numrows = mysql_num_rows($query);

		/*
		echo $numrows;
		*/

		if ($numrows!=0)
		{
			// code to login
			while ($row = mysql_fetch_assoc($query))
			{
				$useremail = strtolower($row['email']);
				$dbusername = strtolower($row['username']);
				$dbpassword = strtolower($row['password']);
			}
			/* CHECK TO SEE IF THEY MATCH!   NOTE THAT THE PASSWORD THAT THE USER ENTERS MUST BE COMPARED TO AN ENCRIPTED PASSWORD WHICH WAS STORED IN THE DB WHEN
				USER REGISTERED HIS ACCOUNT

				THEREFORE, THE USER'S INPUT(for the password field) MUST BE ENCRIPTED FOR COMPARISON
			*/