Can I suppress image on a combobox?

I am using a combobox as an autocomplete. In this case, clicking on the down arrow in the combobox has no effect. How do I turn it off?

The list can be opened if there are loaded options. If options are loaded dynamically, there are not any option initially. You need to type a mask to load suggestions from the server.

My question was how do I turn off the down arrow image. I found out that I can do this on a combo by combo basis by adding a style to a style sheet that is loaded after dhtmlx_combo.css.

#dn_combo .dhx_combo_img { display:none; }

#dn_combo is the name of the div tag I created to hold the combo box. Don’t forget to preface the combo box div name with the hash mark “#”.