The options list of the Combobox are not showing in IE

Suite 7.0/6.0/5.0 and Optimus Suite 5.0
#1

The options list of the Combobox are not showing in IE however it is working fine in FF and Chrome. The box under the dropdown appears empty. This is the code:

<div id="combo_zone1" style="position:relative; top:2px; width:320px;"></div>
<script>
dhtmlx.skin = "dhx_skyblue";
var frmComboDestinations_1=new dhtmlXCombo("combo_zone1","destination",320);
										
function doAfterLoading(){
frmComboDestinations_1.setComboValue(<%=sDestination%>);
}
										frmComboDestinations_1.attachEvent("onOpen",function(){
    frmComboDestinations_1.setComboText('');
    window.setTimeout(function(){
          frmComboDestinations_1._setOptionAutoHeight(true);
},14000);
										})
frmComboDestinations_1.attachEvent("onKeyPressed",function(){
    window.setTimeout(function(){
        frmComboDestinations_1._setOptionAutoHeight(true);
     },1);
})
										
frmComboDestinations_1.attachEvent("onSelectionChange",frmComboDestinations_1._confirmSelection);
										
frmComboDestinations_1.loadXML("ajax/dhtmlxCombo/destinations.xml",doAfterLoading);
frmComboDestinations_1.enableFilteringMode(true);
</script>

This is a sample of the XML file:

<?xml version="1.0" encoding="iso-8859-1"?> Aguascalientes La Paz - Baja California Sur

I can not find the solution, thank you in advance for your help.

#2

I made demo for you - it works. Try, please.
demo_combo.rar (18.4 KB)