public function setDisplayItemsPerPage( $values_to_show )
	{
		$this->display_items_per_page['display'] = false;
		if ( !empty( $values_to_show ) && is_array( $values_to_show ) )
		{
			$result = array_filter( $values_to_show, "is_integer" );
			$this->display_items_per_page['display']	= true;
			$this->display_items_per_page['values'] 	= $result;
		}
	}