diff --git a/core/misc/ajax.js b/core/misc/ajax.js
index d599799..5b21376 100644
--- a/core/misc/ajax.js
+++ b/core/misc/ajax.js
@@ -1,9 +1,5 @@
-(function ($) {
-
-"use strict";
-
 /**
- * Provides Ajax page updating via jQuery $.ajax (Asynchronous JavaScript and XML).
+ * @fileOverview JavaScript for Ajax page updating.
  *
  * Ajax is a method of making a request via JavaScript while viewing an HTML
  * page. The request returns an array of commands encoded in JSON, which is
@@ -14,12 +10,24 @@
  * to provide Ajax capabilities.
  */
 
+/**
+ * @lends Drupal
+ */
+(function ($) {
+
+"use strict";
+
 Drupal.ajax = Drupal.ajax || {};
 
 /**
  * Attaches the Ajax behavior to each Ajax form element.
+ *
+ * @class
  */
 Drupal.behaviors.AJAX = {
+  /**
+   * Attaches the behavior.
+   */
   attach: function (context, settings) {
     // Load all Ajax behaviors specified in the settings.
     for (var base in settings.ajax) {
@@ -71,7 +79,7 @@ Drupal.behaviors.AJAX = {
 };
 
 /**
- * Ajax object.
+ * Provides Ajax page updating via jQuery $.ajax.
  *
  * All Ajax objects on a page are accessible through the global Drupal.ajax
  * object and are keyed by the submit button's ID. You can access them from
@@ -91,6 +99,8 @@ Drupal.behaviors.AJAX = {
  *      }
  *    };
  * @endcode
+ *
+ * @class
  */
 Drupal.ajax = function (base, element, element_settings) {
   var defaults = {
@@ -189,7 +199,7 @@ Drupal.ajax = function (base, element, element_settings) {
 };
 
 /**
- * Handle a key press.
+ * Handles a key press.
  *
  * The Ajax object will, if instructed, bind to a key press response. This
  * will test to see if the key press is valid to trigger this event and
@@ -213,7 +223,7 @@ Drupal.ajax.prototype.keypressResponse = function (element, event) {
 };
 
 /**
- * Handle an event that triggers an Ajax response.
+ * Handles an event that triggers an Ajax response.
  *
  * When an event that triggers an Ajax response happens, this method will
  * perform the actual Ajax call. It is bound to the event using
@@ -267,7 +277,7 @@ Drupal.ajax.prototype.eventResponse = function (element, event) {
 };
 
 /**
- * Handler for the form serialization.
+ * Preprocesses form serialization.
  *
  * Runs before the beforeSend() handler (see below), and unlike that one, runs
  * before field data is collected.
@@ -306,7 +316,7 @@ Drupal.ajax.prototype.beforeSerialize = function (element, options) {
 };
 
 /**
- * Modify form values prior to form submission.
+ * Modifies form values prior to form submission.
  */
 Drupal.ajax.prototype.beforeSubmit = function (form_values, element, options) {
   // This function is left empty to make it simple to override for modules
@@ -314,7 +324,7 @@ Drupal.ajax.prototype.beforeSubmit = function (form_values, element, options) {
 };
 
 /**
- * Prepare the Ajax request before it is sent.
+ * Prepares the Ajax request before it is sent.
  */
 Drupal.ajax.prototype.beforeSend = function (xmlhttprequest, options) {
   // For forms without file inputs, the jQuery Form plugin serializes the form
@@ -374,7 +384,7 @@ Drupal.ajax.prototype.beforeSend = function (xmlhttprequest, options) {
 };
 
 /**
- * Handler for the form redirection completion.
+ * Handles form redirection completion.
  */
 Drupal.ajax.prototype.success = function (response, status) {
   // Remove the progress element.
@@ -411,7 +421,7 @@ Drupal.ajax.prototype.success = function (response, status) {
 };
 
 /**
- * Build an effect object which tells us how to apply the effect when adding new HTML.
+ * Builds an effect object, telling what to do when adding new HTML.
  */
 Drupal.ajax.prototype.getEffect = function (response) {
   var type = response.effect || this.effect;
@@ -438,7 +448,7 @@ Drupal.ajax.prototype.getEffect = function (response) {
 };
 
 /**
- * Handler for the form redirection error.
+ * Handles form redirection errors.
  */
 Drupal.ajax.prototype.error = function (response, uri) {
   alert(Drupal.ajaxError(response, uri));
@@ -461,11 +471,13 @@ Drupal.ajax.prototype.error = function (response, uri) {
 };
 
 /**
- * Provide a series of commands that the server can request the client perform.
+ * Provides a series of commands that the server can request the client perform.
+ *
+ * @class
  */
 Drupal.ajax.prototype.commands = {
   /**
-   * Command to insert new content into the DOM.
+   * Inserts new content into the DOM.
    */
   insert: function (ajax, response, status) {
     // Get information from the response. If it is not there, default to
@@ -537,7 +549,7 @@ Drupal.ajax.prototype.commands = {
   },
 
   /**
-   * Command to remove a chunk from the page.
+   * Removes a chunk from the page.
    */
   remove: function (ajax, response, status) {
     var settings = response.settings || ajax.settings || Drupal.settings;
@@ -546,7 +558,7 @@ Drupal.ajax.prototype.commands = {
   },
 
   /**
-   * Command to mark a chunk changed.
+   * Marks a chunk changed.
    */
   changed: function (ajax, response, status) {
     if (!$(response.selector).hasClass('ajax-changed')) {
@@ -558,21 +570,21 @@ Drupal.ajax.prototype.commands = {
   },
 
   /**
-   * Command to provide an alert.
+   * Provides an alert.
    */
   alert: function (ajax, response, status) {
     alert(response.text, response.title);
   },
 
   /**
-   * Command to provide the jQuery css() function.
+   * Povides the jQuery css() function.
    */
   css: function (ajax, response, status) {
     $(response.selector).css(response.argument);
   },
 
   /**
-   * Command to set the settings that will be used for other commands in this response.
+   * Sets the settings that will be used for other commands in this response.
    */
   settings: function (ajax, response, status) {
     if (response.merge) {
@@ -584,14 +596,14 @@ Drupal.ajax.prototype.commands = {
   },
 
   /**
-   * Command to attach data using jQuery's data API.
+   * Attaches data using jQuery's data API.
    */
   data: function (ajax, response, status) {
     $(response.selector).data(response.name, response.value);
   },
 
   /**
-   * Command to apply a jQuery method.
+   * Applies a jQuery method.
    */
   invoke: function (ajax, response, status) {
     var $element = $(response.selector);
@@ -599,7 +611,7 @@ Drupal.ajax.prototype.commands = {
   },
 
   /**
-   * Command to restripe a table.
+   * Restripes a table.
    */
   restripe: function (ajax, response, status) {
     // :even and :odd are reversed because jQuery counts from 0 and
diff --git a/core/misc/autocomplete.js b/core/misc/autocomplete.js
index 8b0dd72..9ce147c 100644
--- a/core/misc/autocomplete.js
+++ b/core/misc/autocomplete.js
@@ -1,11 +1,23 @@
+/**
+ * @fileOverview JavaScript for autocomplete form fields.
+ */
+
+/**
+ * @lends Drupal
+ */
 (function ($) {
 
 "use strict";
 
 /**
  * Attaches the autocomplete behavior to all required fields.
+ *
+ * @class
  */
 Drupal.behaviors.autocomplete = {
+  /**
+   * Attaches the behavior.
+   */
   attach: function (context, settings) {
     var acdb = [];
     $(context).find('input.autocomplete').once('autocomplete', function () {
@@ -28,6 +40,8 @@ Drupal.behaviors.autocomplete = {
 };
 
 /**
+ * Handles submission of the autocomplete form.
+ *
  * Prevents the form from submitting if the suggestions popup is open
  * and closes the suggestions popup when doing so.
  */
@@ -40,7 +54,9 @@ Drupal.autocompleteSubmit = function () {
 };
 
 /**
- * An AutoComplete object.
+ * Represents an autocomplete object.
+ *
+ * @class
  */
 Drupal.jsAC = function ($input, db) {
   var ac = this;
@@ -55,7 +71,7 @@ Drupal.jsAC = function ($input, db) {
 };
 
 /**
- * Handler for the "keydown" event.
+ * Handles the "keydown" event.
  */
 Drupal.jsAC.prototype.onkeydown = function (input, e) {
   if (!e) {
@@ -74,7 +90,7 @@ Drupal.jsAC.prototype.onkeydown = function (input, e) {
 };
 
 /**
- * Handler for the "keyup" event.
+ * Handles the "keyup" event.
  */
 Drupal.jsAC.prototype.onkeyup = function (input, e) {
   if (!e) {
@@ -246,6 +262,9 @@ Drupal.jsAC.prototype.found = function (matches) {
   }
 };
 
+/**
+ * Sets the status.
+ */
 Drupal.jsAC.prototype.setStatus = function (status) {
   switch (status) {
     case 'begin':
@@ -261,7 +280,9 @@ Drupal.jsAC.prototype.setStatus = function (status) {
 };
 
 /**
- * An AutoComplete DataBase object.
+ * Represents an autocomplete database object.
+ *
+ * @class
  */
 Drupal.ACDB = function (uri) {
   this.uri = uri;
diff --git a/core/misc/drupal.js b/core/misc/drupal.js
index 75767d5..083d222 100644
--- a/core/misc/drupal.js
+++ b/core/misc/drupal.js
@@ -1,10 +1,40 @@
-var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'locale': {} };
+/**
+ * @fileOverview Defines the base Drupal JavaScript object.
+ */
+
+/**
+ * Holds JavaScript settings and other information for Drupal.
+ *
+ * @class
+ */
+var Drupal = Drupal || /** @lends Drupal */ {
+ /**
+  * Holds settings for Drupal.
+  * @class
+  */
+ 'settings': {},
+
+ /**
+  * Holds behaviors for Drupal.
+  * @class
+  */
+ 'behaviors': {},
+
+ /**
+   * Holds locale information for Drupal.
+   * @class
+   */
+'locale': {}
+};
 
 // Allow other JavaScript libraries to use $.
 jQuery.noConflict();
 
 // JavaScript should be made compatible with libraries other than jQuery by
 // wrapping it in an anonymous closure.
+/**
+ * @lends Drupal
+ */
 (function ($, Drupal, window, document, undefined) {
 
 "use strict";