Autocomplete Dependent Population

This module provides ability to populate dependent form elements of an autocomplete form element with proper values.
This module introduces "autocomplete_dependee" type form element which allows to create an autocomplete field.
You can define form elements which will be populated when the value from autocomplete suggestion is selected. This
form elements can be of following type:

Textfield
Textarea
Dropdown
Radio button
Checkboxes

For further information check the README.txt file.