DettachEvent on Combo

Hello, how can i remove an event already asigned to a dhtmlxCombo?

Im in the need of removing the onchange event because i need to reset the combo values at certain point, but if i dont remove the onchange event it fires up when i dont need it to do that.

How can i remove the event from the object?

I tried using combo.detachEvent(“onChange”); but it didnt worked.



I attached the event in this way:

combo.attachEvent(‘onChange’, my_function);

When event attached, code return event’s ID
    var id = combo.attachEvent(“onChange”,some)
This id can be used to detach the same event later
    combo.detachEvent(id) … codeevents