var winopts = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=yes,height=435,width=800,copyhistory=0,"
              var smallwindow = null;
              function setEvent() {
                   return false;
              }
              function historywin(filename) {
                  fileURL=filename;
                   if (parseInt(navigator.appVersion) < 4) {
                      if (smallwindow != null) smallwindow.close();
                 }  
                  timerID= setTimeout('Opener(fileURL)',100);
                                            }
              function Opener(winname){

                filename = winname;
                
                winname = "historywin"
               
                smallwindow = window.open(filename,winname,winopts)
                
                if( navigator.appVersion.indexOf("(X11") != -1 || navigator.appVersion.indexOf("(Mac") != -1)
                     smallwindow = window.open(filename,winname,winopts)

                if( navigator.appVersion.indexOf("MSIE") == -1 )
                    smallwindow.mainWin = this;
                    WindowFocus();
                      }

              function WindowFocus(){
                
                 if( navigator.appVersion.indexOf("2.") == -1 &&   navigator.appVersion.indexOf("MSIE") == -1 )
                     smallwindow.focus();

              }