<!--
     var timeout = 300;
     var closetimer = 0;
     var ddmenuitem = 0;
     // open hidden layer
     function mopen(id) {
         // cancel close timer
         mcancelclosetime();

         // close old layer
         if (ddmenuitem) ddmenuitem.style.visibility = 'hidden';

         // get new layer and show it
         ddmenuitem = document.getElementById(id);
         ddmenuitem.style.visibility = 'visible';

     }
     // close showed layer
     function mclose() {
         if (ddmenuitem) ddmenuitem.style.visibility = 'hidden';
     }

     // go close timer
     function mclosetime() {
         closetimer = window.setTimeout(mclose, timeout);
     }

     // cancel close timer
     function mcancelclosetime() {
         if (closetimer) {
             window.clearTimeout(closetimer);
             closetimer = null;
         }
     }

     // close layer when click-out
     document.onclick = mclose; 
// -->