protected function checkAuthInput()
    {
        
        $defaults = array('user' => null,
						  'password' => null);
						  
		$this->options = array_merge($defaults, $this->options);
		
		if ($this->options['user'] == null) {
			$this->err("Please provide a value for the 'user' parameter.", true);
		}
		else if ($this->options['password'] == null) {
			$this->err("Please provide a value for the 'password' parameter.", true);
		}
        
    }