var win= null;
        function NewWin(mypage,myname,w,h,scroll){
          var winl = (screen.width-w)/2;
          var wint = (screen.height-h)/2;
          var settings  ='height='+h+',';
              settings +='width='+w+',';
              settings +='top='+wint+',';
              settings +='left='+winl+',';
              settings +='scrollbars='+scroll+',';
              settings +='resizable=yes';
          win=window.open(mypage,myname,settings);
          if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
        }