//WHERE - SEARCH : search_name,_login,_email : search on user_id > Name + user_id > Username + user_id > Email
		$search_name,_login,_email = $this->getState('search.name,_login,_email');
		$this->addSearch('name,_login,_email', '_user_id_.name', 'like');
		$this->addSearch('name,_login,_email', '_user_id_.username', 'like');
		$this->addSearch('name,_login,_email', '_user_id_.email', 'like');
		if (($search_name,_login,_email != '') && ($search_name,_login,_email_val = $this->buildSearch('name,_login,_email', $search_name,_login,_email)))
			$this->addWhere($search_name,_login,_email_val);