var win= null;
   function NewWindow(mypage,myname,w,h,scroll){
     var winl = (screen.width-w)/2;
     var wint = (screen.height-h)/2-56;
     var settings  ='height='+h+',';
         settings +='width='+w+',';
         settings +='top='+wint+',';
         settings +='left='+winl+',';
         settings +='scrollbars='+scroll+',';
         settings +='resizable=no';
     win=window.open(mypage,myname,settings);
     if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
   }