HTML_Quickform_select

Hello list! This is my first mail in this list. Sorry for my english. I'll try to be clear in my question. I want to create a select control with option loaded from sql select of a table. something like this: $name = 'book'; $label = 'Book Name'; $conn = 'mysql://usuario1:clave1@localhost/library_db'; $sentence = 'select title, id from books'; $myQF->addElement('select', $name, $label, $conn, $sentence); where $myQF is a HTML_Quickform i create before. With that code, my select control appears empty in my page. The connection is ok because I used some other controls and they show the correct data. More than that if I execute the sentence and pass DB_result as a parameter of AddElement, like this $retrieve = $db->query($sentence); // $db was define and connected using $conn $myQF->addElement('select', $name, $label, $retrieve); then it works! The select control shows the titles I have in my book table!! The problem is solved with this second option, but I want to learn. What is wrong with the first option? One last question, please can anybody suggest me a spanish pear list? I can read english but write is to hard for me. Thanks a lot