/**
  * @param string $locator
  * @param  bool $throwException
  * @return bool
  */
 public function noElement($locator, $throwException = true)
 {
     if (Helper::getRequiredSelector($this, $locator)) {
         //previous or next
         $result = Helper::countElements($this, $locator);
     } else {
         //page number (1, 2, 3, 4, ...)
         $result = !$this->hasLink($locator);
     }
     if ($result === true) {
         return true;
     }
     if ($throwException) {
         $message = sprintf('The Paging Link "%s" exists, but should not!', $locator);
         Helper::throwException($message);
     }
     return false;
 }