code: private function getText ($sKey, $sSection = null, $sFile = null, $sDefault = null)
  	{
  		if (!isset ($this->objText))
  		{
  			$this->objText = Neuron_Core_Text::__getInstance ();
  		}
  		
  		$txt = Neuron_Core_Tools::output_varchar
  		(
  			$this->objText->get 
  			(
  				$sKey, 
  				isset ($sSection) ? $sSection : $this->sTextSection, 
  				isset ($sFile) ? $sFile : $this->sTextFile,
  				false
  			)
  		);
  
  		if (!$txt)
  		{
  			return $sDefault;
  		}
  
  		return $txt;
  	}
docs: Intern function