public function setLayoutExt($value)
	{
		if ($value = preg_replace('/[^A-Za-z0-9]/', '', trim($value)))
		{
			$this->_layoutExt = $value;
		}

		return $this;
	}
public function setLayoutExt($value)
	{
		if ($value = preg_replace('/[^A-Za-z0-9]/', '', trim($value)))
		{
			$this->_layoutExt = $value;
		}

		return $this;
	}
public function setLayoutExt ( $ value ) { if ( $ value = preg_replace ( '/[^A-Za-z0-9]/' , '' , trim ( $ value ) ) ) { $ this -> _layoutExt = $ value ; } return $ this ; }
Allows a different extension for the layout files to be used

@param   string  $value  The extension.
@return  string  Previous value
Allows a different extension for the layout files to be used