code: protected function redirectToFrontendPage($intPage, $strArticle=null, $blnReturn=false)
  	{
  		if (($intPage = (int) $intPage) <= 0)
  		{
  			return '';
  		}
  
  		$objPage = PageModel::findWithDetails($intPage);
  
  		if ($objPage === null)
  		{
  			return '';
  		}
  
  		$strParams = null;
  
  		// Add the /article/ fragment (see #673)
  		if ($strArticle !== null && ($objArticle = ArticleModel::findByAlias($strArticle)) !== null)
  		{
  			$strParams = '/articles/' . (($objArticle->inColumn != 'main') ? $objArticle->inColumn . ':' : '') . $strArticle;
  		}
  
  		$strUrl = $objPage->getFrontendUrl($strParams);
  
  		// Make sure the URL is absolute (see #4332)
  		if (strncmp($strUrl, 'http://', 7) !== 0 && strncmp($strUrl, 'https://', 8) !== 0)
  		{
  			$strUrl = Environment::get('base') . $strUrl;
  		}
  
  		if (!$blnReturn)
  		{
  			$this->redirect($strUrl);
  		}
  
  		return $strUrl;
  	}
docs: Redirect to a front end page
  
  @param integer $intPage    The page ID
  @param string  $strArticle An optional article alias
  @param boolean $blnReturn  If true, return the URL and don't redirect
  
  @return string The URL of the target page