// Popup
function popp(url, w, h, scroll) {
  if(!scroll) { scroll = 0; }
  id = w+h+(url.length);
  wnd = window.open(url, id, 'toolbar=0,scrollbars='+scroll+',location=0,statusbar=0,menubar=0,resizable=1,width='+w+',height='+h);
  wnd.focus();
}