message: Update static/menu.js
diff: case "pageup":
  // page up: jump five items up, stopping at the top
  // the number 5 is used so that we go one page in the
  - // inner-scrolled Depedencies and Versions fields
  + // inner-scrolled Dependencies and Versions fields
  switchTo = currentLink;
  for (var n = 0; n < 5 && switchTo; ++n) {
  switchTo = previous(allItems, switchTo);
  