function opendetailwindow() {
     window.open('','detailwindow','toolbar=no,scrollbars=yes,resizable=no,width=680,height=480');
   }

   function right(e) {
     if (navigator.appName == 'Netscape' && (e.which == 2 || e.which == 3)) {
       alert("© Copyright by {site_name}");
       return false;
     }
     else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button==2 || event.button == 3)) {
       alert("© Copyright by {site_name}");
       return false;
     }
     return true;
   }
   document.onmousedown=right;
   if (document.layers) window.captureEvents(Event.MOUSEDOWN);
   window.onmousedown=right;