Images in combo

I try to fill a combo with ISP Currency Codes. I’m working with the ASPX Connector. Bascly all works fine.
Now i want to use Currency Images in Front of the ISO Code.
I have found that the ItemPrerender not helps to muche since i can’t set here a Image. (Only value and text) is possible.
The next idear was after popilating the combobox, count (ForEach) Combo Items and set the omage with the updateOption method. Problem there is no ForEach or ItemCount for the combobox.
So any idears for an workaround?

With best regards,
Uwe Janke

Unfortunately connector doesn.t allow to set images