var item = document.getElementById("<%=drpGroupType.ClientID %>");
            var index = item.selectedIndex;

            var Text = item.options[index].text;
            if (Text == "Private" || Text == "Platinum Private") {
                
                document.getElementById("divGroup").style.display = "none";

            }
            else {
                document.getElementById("divGroup").style.display = "table";
            }