Forms
Is there a way to programmatically bring form control to front or send it to back?
You can re-arrange controls z-order by removing a control from the form using Form.body.removeChild function and then re-inserting it back to the form in the desired position relative to an anchor control using Form.body.insertBefore / Form.body.insertAfter functions.
Re-inserting the control back to the form using Form.body.appendChild is equivalent to bringing it to the very front.