function NewWindow(mypage,myname,w,h,scroll){
  left = (screen.width) ? (screen.width-w)/2 : 0;
  top = (screen.height) ? (screen.height-h)/2 : 0;
  settings = 'innerHeight='+h+',innerWidth='+w+',scrollbars='+scroll+',left='+left+',top='+top+'resizable';
  newwin = window.open(mypage,myname,settings);
}