An example of a simple contentscript for a Chrome Extension.

contentscript.js

  function createToolBar(toolbarUrl, callback) {
    var toolbar = $('<div>').attr("id", "oda-toolbar");
    $('body').prepend(toolbar);

    var url = chrome.extension.getURL(toolbarUrl);
    $('#oda-toolbar').load(url, function() { callback();});
  }

  function setupSearchInput() {
    $("input#odaSearch").keyup(function (e) {
      if (e.keyCode == 13) {
        window.location = tvBaseUrl + "/Program/" + $(event.target).val();
      }
    });
  }

  $(document).ready(function() {
    var toolbarUrl = "content/toolbar.html";
    createToolBar(toolbarUrl, function() {
      setupSearchInput();
    });
  });