var g_oDDCon = null;
        var g_semSelect = new Array();
        function toggleDD(obj)
        {
            try {
                if (navigator.appName.indexOf("Explorer") != -1)
                {
                    oDDCon = obj.nextSibling.nextSibling.nextSibling.firstChild;
                }
                else
                    oDDCon = obj.nextSibling.nextSibling.nextSibling.nextSibling.firstChild.nextSibling;
                
                if(oDDCon.className == "list open")
                {
                    oDDCon.className = "list close";
                    g_oDDCon = null;
                }
                else
                {
                    oDDCon.className = "list open";
                    closeDD();
                    g_oDDCon = oDDCon;
                }
            }
            catch(e){alert(e);}
        }
        
        function closeDD()
        {
            if(g_oDDCon != null)
            {
                g_oDDCon.className = "list close";
                g_oDDCon = null;
            }
        }

        function selectDD(oChoice, aspect)
        {
            if (navigator.appName.indexOf("Explorer") != -1)
            {
                oDDCon = oChoice.parentNode.parentNode.parentNode;
                oDDValue = oDDCon.childNodes[6]; //knt:remember text_node between elements!
                oDDValue.firstChild.nodeValue = oChoice.title;
                oDDValue.title = oChoice.title;
            }
            else
            {        
                oDDCon = oChoice.parentNode.parentNode.parentNode;
                oDDValue = oDDCon.childNodes[9]; //knt:remember text_node between elements!
                oDDValue.firstChild.nodeValue = oChoice.title;
                oDDValue.title = oChoice.title;
            }
            
            closeDD();
            
            g_semSelect[aspect] = oChoice.id;
            goToSemGrid();
        }
        
        function goToSemGrid()
        {
            semoverview = "/cms/front_content.php?idart=2"
            semoverview += "&topic=" + g_semSelect[0];
            semoverview += "&city=" + g_semSelect[1];
            semoverview += "&date=" + g_semSelect[2];
            window.location.href = semoverview;
        }