lesson.js

// Make all tables striped by default.
$("table").addClass("table table-striped");

// Handle searches.
// Relies on document having 'meta' element with name 'search-domain'.
function google_search() {
  var query = document.getElementById("google-search").value;
  var domain = $("meta[name=search-domain]").attr("value");
  window.open("https://www.google.com/search?q=" + query + "+site:" + domain);
}