public function stringExists($key) {
		
		// load translation strings
		$this->loadStrings();
		
		if (array_key_exists($key, $this->strings) or array_key_exists($key, $this->defaultStrings)) {
			return TRUE;
		} else {
			return FALSE;
		}
		
	}
public function stringExists($key) {
		
		// load translation strings
		$this->loadStrings();
		
		if (array_key_exists($key, $this->strings) or array_key_exists($key, $this->defaultStrings)) {
			return TRUE;
		} else {
			return FALSE;
		}
		
	}
public function stringExists ( $ key ) { // load translation strings $ this -> loadStrings ( ) ; if ( array_key_exists ( $ key , $ this -> strings ) or array_key_exists ( $ key , $ this -> defaultStrings ) ) { return TRUE ; } else { return FALSE ; } }
Return TRUE if passed language is available for translation.

@param	string	Language key.

@return	boolean
Return TRUE if passed language is available for translation .