function makeWin(url) {
              agent = navigator.userAgent;
              windowName = "Sitelet";
              params  = "";
              params += "toolbar=0,";
              params += "location=0,";
              params += "directories=0,";
              params += "status=0,";
              params += "menubar=0,";
              params += "scrollbars=1,";
              params += "resizable=1,";
              params += "width=580,";
              params += "height=400";

              win = window.open(url, windowName , params);

      if (agent.indexOf("Mozilla/2") != -1 && agent.indexOf("Win") == -1) {
                  win = window.open(url, windowName , params);
              }

      if (!win.opener) {
                  win.opener = window;
              }
          };