Classe: HTML_QuickForm_autocomplete  - X-Ref

Class to dynamically create an HTML input text element that
at every keypressed javascript event, check in an array of options
if there's a match and autocomplete the text in case of match.

Ex:
$autocomplete =& $form->addElement('autocomplete', 'fruit', 'Favourite fruit:');
$options = array("Apple", "Orange", "Pear", "Strawberry");
$autocomplete->setOptions($options);