Combo Set Focus?

Is there a way that one can set the focus on a combobox? E.g., in the onChange event handler for combo #1, processing is programatically moved to combo box #2 (or, of course, on some other control’s event handler, control is programatically moved to a combo box).

I found how to do this. No doubt you know, but for the benefit of future readers:


(DOMelem_input is actual code to use)