I need to create a pair of dynamically interacting selects. The content in the actual exposed filter needs to be grouped, so i added a select with the group names that should, on change, load the coresponding items in the second select (the exposed filter).
I used hook_form_alter to add the select that triggers the ajax call.
My problem is that the ajax call does not trigger the callback function. I tested the same code in the form_alter of a node's add page, and they work correctly.
PASSED: [[SimpleTest]]: [MySQL] 1,658 pass(es). View
PASSED: [[SimpleTest]]: [MySQL] 1,627 pass(es). View