The best bet for you would be to put a text box which is disabled. Put a
button which has an image to look like the button from the combobox to the
right of the text box. Then on top of the text box put a list  box which has
visible=false. When the arrow is clicked make the list box visible=true then
when the selection is made in the list box make the text box value = the list
box selection.value and make the text box visible=false