//call decorator pattern
SearchAll aux = new SearchAll();
products_node = aux.search(this.window_login.getProducts());
videos_node = new SearchVideoDecorator(aux).search(this.window_login.getVideos());
books_node = new SearchBookDecorator(aux).search(this.window_login.getBooks());
//***************************************************************************************
for (int i = 0; i < this.window_login.getAuthors().size();i++){