diff --git a/readthedocs/api/base.py b/readthedocs/api/base.py
index e2a47daf9ac..ba2c5980900 100644
--- a/readthedocs/api/base.py
+++ b/readthedocs/api/base.py
@@ -18,8 +18,7 @@
 from readthedocs.builds.models import Build, Version
 from readthedocs.core.utils import trigger_build
 from readthedocs.projects.models import Project, ImportedFile
-from readthedocs.projects.version_handling import highest_version
-from readthedocs.projects.version_handling import parse_version_failsafe
+from readthedocs.restapi.views.footer_views import get_version_compare_data
 
 from .utils import SearchMixin, PostAuthentication
 
@@ -144,34 +143,16 @@ def get_object_list(self, request):
         self._meta.queryset = Version.objects.api(user=request.user, only_active=False)
         return super(VersionResource, self).get_object_list(request)
 
-    def version_compare(self, request, **kwargs):
-        project = get_object_or_404(Project, slug=kwargs['project_slug'])
-        highest_version_obj, highest_version_comparable = highest_version(
-            project.versions.filter(active=True))
-        base = kwargs.get('base', None)
-        ret_val = {
-            'project': highest_version_obj,
-            'version': highest_version_comparable,
-            'is_highest': True,
-        }
-        if highest_version_obj:
-            ret_val['url'] = highest_version_obj.get_absolute_url()
-            ret_val['slug'] = highest_version_obj.slug,
+    def version_compare(self, request, project_slug, base=None, **kwargs):
+        project = get_object_or_404(Project, slug=project_slug)
         if base and base != LATEST:
             try:
-                base_version_obj = project.versions.get(slug=base)
-                base_version_comparable = parse_version_failsafe(
-                    base_version_obj.verbose_name)
-                if base_version_comparable:
-                    # This is only place where is_highest can get set.  All
-                    # error cases will be set to True, for non- standard
-                    # versions.
-                    ret_val['is_highest'] = (
-                        base_version_comparable >= highest_version_comparable)
-                else:
-                    ret_val['is_highest'] = True
+                base_version = project.versions.get(slug=base)
             except (Version.DoesNotExist, TypeError):
-                ret_val['is_highest'] = True
+                base_version = None
+        else:
+            base_version = None
+        ret_val = get_version_compare_data(project, base_version)
         return self.create_response(request, ret_val)
 
     def build_version(self, request, **kwargs):
diff --git a/readthedocs/core/static-src/core/js/doc.js b/readthedocs/core/static-src/core/js/doc-embed/build.js
similarity index 100%
rename from readthedocs/core/static-src/core/js/doc.js
rename to readthedocs/core/static-src/core/js/doc-embed/build.js
diff --git a/readthedocs/core/static-src/core/js/doc-embed/footer.js b/readthedocs/core/static-src/core/js/doc-embed/footer.js
new file mode 100644
index 00000000000..f7d10eb45f6
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/footer.js
@@ -0,0 +1,102 @@
+var Build = require('./build').Build;
+var rtddata = require('./rtd-data');
+var versionCompare = require('./version-compare');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    var get_data = {
+        project: rtd['project'],
+        version: rtd['version'],
+        page: rtd['page'],
+        theme: rtd['theme'],
+        format: "jsonp",
+    };
+
+    // Crappy heuristic, but people change the theme name on us.
+    // So we have to do some duck typing.
+    if ("docroot" in rtd) {
+        get_data['docroot'] = rtd['docroot'];
+    }
+
+    if ("source_suffix" in rtd) {
+        get_data['source_suffix'] = rtd['source_suffix'];
+    }
+
+    if (window.location.pathname.indexOf('/projects/') === 0) {
+        get_data['subproject'] = true;
+    }
+
+    // Get footer HTML from API and inject it into the page.
+    $.ajax({
+        url: rtd.api_host + "/api/v2/footer_html/",
+        crossDomain: true,
+        xhrFields: {
+            withCredentials: true,
+        },
+        dataType: "jsonp",
+        data: get_data,
+        success: function (data) {
+            versionCompare.init(data.version_compare);
+            injectFooter(data);
+            setupBookmarkCSRFToken();
+        },
+        error: function () {
+            console.error('Error loading Read the Docs footer');
+        }
+    });
+}
+
+
+function injectFooter(data) {
+    var build = new Build(rtddata.get());
+
+    // If the theme looks like ours, update the existing badge
+    // otherwise throw a a full one into the page.
+    if (build.is_rtd_theme()) {
+        $("div.rst-other-versions").html(data['html']);
+    } else {
+        $("body").append(data['html']);
+    }
+
+    if (!data['version_active']) {
+        $('.rst-current-version').addClass('rst-out-of-date');
+    } else if (!data['version_supported']) {
+        //$('.rst-current-version').addClass('rst-active-old-version')
+    }
+
+    // Show promo selectively
+    if (data.promo && build.show_promo()) {
+        var promo = new sponsorship.Promo(
+            data.promo_data.id,
+            data.promo_data.text,
+            data.promo_data.link,
+            data.promo_data.image
+        )
+        if (promo) {
+            promo.display();
+        }
+    }
+}
+
+
+function setupBookmarkCSRFToken() {
+    function csrfSafeMethod(method) {
+        // these HTTP methods do not require CSRF protection
+        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+    }
+
+    $.ajaxSetup({
+        beforeSend: function(xhr, settings) {
+            if (!csrfSafeMethod(settings.type)) {
+                xhr.setRequestHeader("X-CSRFToken", $('a.bookmark[token]').attr('token'));
+            }
+        }
+    });
+}
+
+
+module.exports = {
+    init: init
+};
diff --git a/readthedocs/core/static-src/core/js/doc-embed/grokthedocs-client.js b/readthedocs/core/static-src/core/js/doc-embed/grokthedocs-client.js
new file mode 100644
index 00000000000..5792252b276
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/grokthedocs-client.js
@@ -0,0 +1,13 @@
+function init() {
+    // Add Grok the Docs Client
+    $.ajax({
+        url: "https://api.grokthedocs.com/static/javascript/bundle-client.js",
+        crossDomain: true,
+        dataType: "script",
+    });
+}
+
+
+module.exports = {
+    init: init
+};
diff --git a/readthedocs/core/static-src/core/js/doc-embed/mkdocs.js b/readthedocs/core/static-src/core/js/doc-embed/mkdocs.js
new file mode 100644
index 00000000000..13434ab7bb2
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/mkdocs.js
@@ -0,0 +1,52 @@
+/*
+ * Mkdocs specific JS code.
+ */
+
+
+var rtddata = require('./rtd-data');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    // Override MkDocs styles
+    if ("builder" in rtd && rtd["builder"] == "mkdocs") {
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'project',
+          value: rtd["project"]
+      }).appendTo('#rtd-search-form');
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'version',
+          value: rtd["version"]
+      }).appendTo('#rtd-search-form');
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'type',
+          value: 'file'
+      }).appendTo('#rtd-search-form');
+
+      $("#rtd-search-form").prop("action", rtd.api_host + "/elasticsearch/");
+
+      // Apply stickynav to mkdocs builds
+      var nav_bar = $('nav.wy-nav-side:first'),
+          win = $(window),
+          sticky_nav_class = 'stickynav',
+          apply_stickynav = function () {
+              if (nav_bar.height() <= win.height()) {
+                  nav_bar.addClass(sticky_nav_class);
+              } else {
+                  nav_bar.removeClass(sticky_nav_class);
+              }
+          };
+      win.on('resize', apply_stickynav);
+      apply_stickynav();
+    }
+
+}
+
+
+module.exports = {
+    init: init
+};
diff --git a/readthedocs/core/static-src/core/js/doc-embed/rtd-data.js b/readthedocs/core/static-src/core/js/doc-embed/rtd-data.js
new file mode 100644
index 00000000000..aff57f98f17
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/rtd-data.js
@@ -0,0 +1,21 @@
+/*
+ * This exposes data injected during the RTD build into the template. It's
+ * provided via the global READTHEDOCS_DATA variable and is exposed here as a
+ * module for cleaner usage.
+ */
+
+
+/*
+ * Access READTHEDOCS_DATA on call, not on module load. The reason is that the
+ * READTHEDOCS_DATA might not be available during script load time.
+ */
+function get() {
+    return $.extend({
+        api_host: 'https://readthedocs.org'
+    }, window.READTHEDOCS_DATA);
+}
+
+
+module.exports = {
+    get: get
+};
diff --git a/readthedocs/core/static-src/core/js/doc-embed/sphinx.js b/readthedocs/core/static-src/core/js/doc-embed/sphinx.js
new file mode 100644
index 00000000000..ac4be24b18f
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/sphinx.js
@@ -0,0 +1,143 @@
+/*
+ * Sphinx builder specific JS code.
+ */
+
+
+var rtddata = require('./rtd-data');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    /// Click tracking on flyout
+    $(document).on('click', "[data-toggle='rst-current-version']", function() {
+      var flyout_state = $("[data-toggle='rst-versions']").hasClass('shift-up') ? 'was_open' : 'was_closed'
+      if (_gaq) {
+        _gaq.push(
+            ['rtfd._setAccount', 'UA-17997319-1'],
+            ['rtfd._trackEvent', 'Flyout', 'Click', flyout_state]
+        );
+      }
+    });
+
+    /// Read the Docs Sphinx theme code
+    if (!("builder" in rtd) || "builder" in rtd && rtd["builder"] != "mkdocs") {
+        function toggleCurrent (elem) {
+            var parent_li = elem.closest('li');
+            parent_li.siblings('li.current').removeClass('current');
+            parent_li.siblings().find('li.current').removeClass('current');
+            parent_li.find('> ul li.current').removeClass('current');
+            parent_li.toggleClass('current');
+        }
+
+        // Shift nav in mobile when clicking the menu.
+        $(document).on('click', "[data-toggle='wy-nav-top']", function() {
+            $("[data-toggle='wy-nav-shift']").toggleClass("shift");
+            $("[data-toggle='rst-versions']").toggleClass("shift");
+        });
+        // Nav menu link click operations
+        $(document).on('click', ".wy-menu-vertical .current ul li a", function() {
+            var target = $(this);
+            // Close menu when you click a link.
+            $("[data-toggle='wy-nav-shift']").removeClass("shift");
+            $("[data-toggle='rst-versions']").toggleClass("shift");
+            // Handle dynamic display of l3 and l4 nav lists
+            toggleCurrent(target);
+            if (typeof(window.SphinxRtdTheme) != 'undefined') {
+                window.SphinxRtdTheme.StickyNav.hashChange();
+            }
+        });
+        $(document).on('click', "[data-toggle='rst-current-version']", function() {
+            $("[data-toggle='rst-versions']").toggleClass("shift-up");
+        });
+        // Make tables responsive
+        $("table.docutils:not(.field-list)").wrap("<div class='wy-table-responsive'></div>");
+
+        // Add expand links to all parents of nested ul
+        $('.wy-menu-vertical ul').siblings('a').each(function () {
+            var link = $(this);
+                expand = $('<span class="toctree-expand"></span>');
+            expand.on('click', function (ev) {
+                toggleCurrent(link);
+                ev.stopPropagation();
+                return false;
+            });
+            link.prepend(expand);
+        });
+
+        // Sphinx theme state
+        window.SphinxRtdTheme = (function (jquery) {
+            var stickyNav = (function () {
+                var navBar,
+                    win,
+                    winScroll = false,
+                    linkScroll = false,
+                    winPosition = 0,
+                    enable = function () {
+                        init();
+                        reset();
+                        win.on('hashchange', reset);
+
+                        // Set scrolling
+                        win.on('scroll', function () {
+                            if (!linkScroll) {
+                                winScroll = true;
+                            }
+                        });
+                        setInterval(function () {
+                            if (winScroll) {
+                                winScroll = false;
+                                var newWinPosition = win.scrollTop(),
+                                    navPosition = navBar.scrollTop(),
+                                    newNavPosition = navPosition + (newWinPosition - winPosition);
+                                navBar.scrollTop(newNavPosition);
+                                winPosition = newWinPosition;
+                            }
+                        }, 25);
+                    },
+                    init = function () {
+                        navBar = jquery('nav.wy-nav-side:first');
+                        win = jquery(window);
+                    },
+                    reset = function () {
+                        // Get anchor from URL and open up nested nav
+                        var anchor = encodeURI(window.location.hash);
+                        if (anchor) {
+                            try {
+                                var link = $('.wy-menu-vertical')
+                                    .find('[href="' + anchor + '"]');
+                                $('.wy-menu-vertical li.toctree-l1 li.current')
+                                    .removeClass('current');
+                                link.closest('li.toctree-l2').addClass('current');
+                                link.closest('li.toctree-l3').addClass('current');
+                                link.closest('li.toctree-l4').addClass('current');
+                            }
+                            catch (err) {
+                                console.log("Error expanding nav for anchor", err);
+                            }
+                        }
+                    },
+                    hashChange = function () {
+                        linkScroll = true;
+                        win.one('hashchange', function () {
+                            linkScroll = false;
+                        });
+                    };
+                jquery(init);
+                return {
+                    enable: enable,
+                    hashChange: hashChange
+                };
+            }());
+            return {
+                StickyNav: stickyNav
+            };
+        }($));
+    }
+
+}
+
+
+module.exports = {
+    init: init
+};
diff --git a/readthedocs/core/static-src/core/js/doc-embed/version-compare.js b/readthedocs/core/static-src/core/js/doc-embed/version-compare.js
new file mode 100644
index 00000000000..095421b09cb
--- /dev/null
+++ b/readthedocs/core/static-src/core/js/doc-embed/version-compare.js
@@ -0,0 +1,38 @@
+var rtddata = require('./rtd-data');
+
+
+function init(data) {
+    var rtd = rtddata.get();
+
+    /// Out of date message
+
+    if (data.is_highest) {
+        return;
+    }
+
+    var currentURL = window.location.pathname.replace(rtd['version'], data.slug);
+    var warning = $(
+        '<div class="admonition warning"> ' +
+        '<p class="first admonition-title">Note</p> ' +
+        '<p class="last"> ' +
+        'You are not using the most up to date version of the library. ' +
+        '<a href="#"></a> is the newest version.' +
+        '</p>' +
+        '</div>');
+
+    warning
+      .find('a')
+      .attr('href', currentURL)
+      .text(data.version);
+
+    var body = $("div.body");
+    if (!body.length) {
+        body = $("div.document");
+    }
+    body.prepend(warning);
+}
+
+
+module.exports = {
+    init: init
+};
diff --git a/readthedocs/core/static-src/core/js/readthedocs-doc-embed.js b/readthedocs/core/static-src/core/js/readthedocs-doc-embed.js
index abe2be34c34..0bc397dfb10 100644
--- a/readthedocs/core/static-src/core/js/readthedocs-doc-embed.js
+++ b/readthedocs/core/static-src/core/js/readthedocs-doc-embed.js
@@ -1,308 +1,13 @@
 var sponsorship = require('./sponsorship'),
-    doc = require('./doc');
+    footer = require('./doc-embed/footer.js'),
+    grokthedocs = require('./doc-embed/grokthedocs-client'),
+    mkdocs = require('./doc-embed/mkdocs'),
+    rtddata = require('./doc-embed/rtd-data'),
+    sphinx = require('./doc-embed/sphinx');
 
 $(document).ready(function () {
-
-    var build = new doc.Build(READTHEDOCS_DATA);
-
-    get_data = {
-        project: READTHEDOCS_DATA['project'],
-        version: READTHEDOCS_DATA['version'],
-        page: READTHEDOCS_DATA['page'],
-        theme: READTHEDOCS_DATA['theme'],
-        format: "jsonp",
-    };
-
-
-    // Crappy heuristic, but people change the theme name on us.
-    // So we have to do some duck typing.
-    if ("docroot" in READTHEDOCS_DATA) {
-      get_data['docroot'] = READTHEDOCS_DATA['docroot'];
-    }
-
-    if ("source_suffix" in READTHEDOCS_DATA) {
-      get_data['source_suffix'] = READTHEDOCS_DATA['source_suffix'];
-    }
-
-    var API_HOST = READTHEDOCS_DATA['api_host'];
-    if (API_HOST === undefined) {
-      API_HOST = 'https://readthedocs.org';
-    }
-
-    if (window.location.pathname.indexOf('/projects/') === 0) {
-      get_data['subproject'] = true;
-    }
-
-    // Theme popout code
-    $.ajax({
-      url: API_HOST + "/api/v2/footer_html/",
-      crossDomain: true,
-      xhrFields: {
-        withCredentials: true,
-      },
-      dataType: "jsonp",
-      data: get_data,
-      success: function (data) {
-            // If the theme looks like ours, update the existing badge
-            // otherwise throw a a full one into the page.
-            if (build.is_rtd_theme()) {
-              $("div.rst-other-versions").html(data['html']);
-            } else {
-              $("body").append(data['html']);
-            }
-
-            if (!data['version_active']) {
-                $('.rst-current-version').addClass('rst-out-of-date');
-            } else if (!data['version_supported']) {
-                //$('.rst-current-version').addClass('rst-active-old-version')
-            }
-
-            // Show promo selectively
-            if (data.promo && build.show_promo()) {
-                var promo = new sponsorship.Promo(
-                  data.promo_data.id,
-                  data.promo_data.text,
-                  data.promo_data.link,
-                  data.promo_data.image
-                )
-                if (promo) {
-                    promo.display();
-                }
-            }
-
-            // using jQuery
-            function getCookie(name) {
-                var cookieValue = null;
-                if (document.cookie && document.cookie !== '') {
-                    var cookies = document.cookie.split(';');
-                    for (var i = 0; i < cookies.length; i++) {
-                        var cookie = jQuery.trim(cookies[i]);
-                        // Does this cookie string begin with the name we want?
-                        if (cookie.substring(0, name.length + 1) == (name + '=')) {
-                            cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
-                            break;
-                        }
-                    }
-                }
-                return cookieValue;
-            }
-
-              function csrfSafeMethod(method) {
-                  // these HTTP methods do not require CSRF protection
-                  return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
-              }
-              $.ajaxSetup({
-                  beforeSend: function(xhr, settings) {
-                      if (!csrfSafeMethod(settings.type)) {
-                          xhr.setRequestHeader("X-CSRFToken", $('a.bookmark[token]').attr('token'));
-                      }
-                  }
-              });
-      },
-      error: function () {
-          console.log('Error loading Read the Docs footer');
-      }
-    });
-
-    /// Click tracking on flyout
-    $(document).on('click', "[data-toggle='rst-current-version']", function() {
-      var flyout_state = $("[data-toggle='rst-versions']").hasClass('shift-up') ? 'was_open' : 'was_closed'
-      if (_gaq) {
-        _gaq.push(
-            ['rtfd._setAccount', 'UA-17997319-1'],
-            ['rtfd._trackEvent', 'Flyout', 'Click', flyout_state]
-        );
-      }
-    });
-
-    /// Read the Docs Sphinx theme code
-    if (!("builder" in READTHEDOCS_DATA) || "builder" in READTHEDOCS_DATA && READTHEDOCS_DATA["builder"] != "mkdocs") {
-        function toggleCurrent (elem) {
-            var parent_li = elem.closest('li');
-            parent_li.siblings('li.current').removeClass('current');
-            parent_li.siblings().find('li.current').removeClass('current');
-            parent_li.find('> ul li.current').removeClass('current');
-            parent_li.toggleClass('current');
-        }
-
-        // Shift nav in mobile when clicking the menu.
-        $(document).on('click', "[data-toggle='wy-nav-top']", function() {
-            $("[data-toggle='wy-nav-shift']").toggleClass("shift");
-            $("[data-toggle='rst-versions']").toggleClass("shift");
-        });
-        // Nav menu link click operations
-        $(document).on('click', ".wy-menu-vertical .current ul li a", function() {
-            var target = $(this);
-            // Close menu when you click a link.
-            $("[data-toggle='wy-nav-shift']").removeClass("shift");
-            $("[data-toggle='rst-versions']").toggleClass("shift");
-            // Handle dynamic display of l3 and l4 nav lists
-            toggleCurrent(target);
-            if (typeof(window.SphinxRtdTheme) != 'undefined') {
-                window.SphinxRtdTheme.StickyNav.hashChange();
-            }
-        });
-        $(document).on('click', "[data-toggle='rst-current-version']", function() {
-            $("[data-toggle='rst-versions']").toggleClass("shift-up");
-        });
-        // Make tables responsive
-        $("table.docutils:not(.field-list)").wrap("<div class='wy-table-responsive'></div>");
-
-        // Add expand links to all parents of nested ul
-        $('.wy-menu-vertical ul').siblings('a').each(function () {
-            var link = $(this);
-                expand = $('<span class="toctree-expand"></span>');
-            expand.on('click', function (ev) {
-                toggleCurrent(link);
-                ev.stopPropagation();
-                return false;
-            });
-            link.prepend(expand);
-        });
-
-        // Sphinx theme state
-        window.SphinxRtdTheme = (function (jquery) {
-            var stickyNav = (function () {
-                var navBar,
-                    win,
-                    winScroll = false,
-                    linkScroll = false,
-                    winPosition = 0,
-                    enable = function () {
-                        init();
-                        reset();
-                        win.on('hashchange', reset);
-
-                        // Set scrolling
-                        win.on('scroll', function () {
-                            if (!linkScroll) {
-                                winScroll = true;
-                            }
-                        });
-                        setInterval(function () {
-                            if (winScroll) {
-                                winScroll = false;
-                                var newWinPosition = win.scrollTop(),
-                                    navPosition = navBar.scrollTop(),
-                                    newNavPosition = navPosition + (newWinPosition - winPosition);
-                                navBar.scrollTop(newNavPosition);
-                                winPosition = newWinPosition;
-                            }
-                        }, 25);
-                    },
-                    init = function () {
-                        navBar = jquery('nav.wy-nav-side:first');
-                        win = jquery(window);
-                    },
-                    reset = function () {
-                        // Get anchor from URL and open up nested nav
-                        var anchor = encodeURI(window.location.hash);
-                        if (anchor) {
-                            try {
-                                var link = $('.wy-menu-vertical')
-                                    .find('[href="' + anchor + '"]');
-                                $('.wy-menu-vertical li.toctree-l1 li.current')
-                                    .removeClass('current');
-                                link.closest('li.toctree-l2').addClass('current');
-                                link.closest('li.toctree-l3').addClass('current');
-                                link.closest('li.toctree-l4').addClass('current');
-                            }
-                            catch (err) {
-                                console.log("Error expanding nav for anchor", err);
-                            }
-                        }
-                    },
-                    hashChange = function () {
-                        linkScroll = true;
-                        win.one('hashchange', function () {
-                            linkScroll = false;
-                        });
-                    };
-                jquery(init);
-                return {
-                    enable: enable,
-                    hashChange: hashChange
-                };
-            }());
-            return {
-                StickyNav: stickyNav
-            };
-        }($));
-    }
-
-    // Add Grok the Docs Client
-    $.ajax({
-        url: "https://api.grokthedocs.com/static/javascript/bundle-client.js",
-        crossDomain: true,
-        dataType: "script",
-    });
-
-
-    /// Out of date message
-
-      var versionURL = [API_HOST + "/api/v1/version/", READTHEDOCS_DATA['project'],
-                        "/highest/", READTHEDOCS_DATA['version'], "/?callback=?"].join("");
-
-      $.getJSON(versionURL, onData);
-
-      function onData (data) {
-        if (data.is_highest) {
-          return;
-        }
-
-        var currentURL = window.location.pathname.replace(READTHEDOCS_DATA['version'], data.slug),
-            warning = $('<div class="admonition warning"> <p class="first \
-                         admonition-title">Note</p> <p class="last"> \
-                         You are not using the most up to date version \
-                         of the library. <a href="#"></a> is the newest version.</p>\
-                         </div>');
-
-        warning
-          .find('a')
-          .attr('href', currentURL)
-          .text(data.version);
-
-        body = $("div.body");
-        if (!body.length) {
-          body = $("div.document");
-        }
-        body.prepend(warning);
-      }
-
-
-    // Override MkDocs styles
-    if ("builder" in READTHEDOCS_DATA && READTHEDOCS_DATA["builder"] == "mkdocs") {
-      $('<input>').attr({
-          type: 'hidden',
-          name: 'project',
-          value: READTHEDOCS_DATA["project"]
-      }).appendTo('#rtd-search-form');
-      $('<input>').attr({
-          type: 'hidden',
-          name: 'version',
-          value: READTHEDOCS_DATA["version"]
-      }).appendTo('#rtd-search-form');
-      $('<input>').attr({
-          type: 'hidden',
-          name: 'type',
-          value: 'file'
-      }).appendTo('#rtd-search-form');
-
-      $("#rtd-search-form").prop("action", API_HOST + "/elasticsearch/");
-
-      // Apply stickynav to mkdocs builds
-      var nav_bar = $('nav.wy-nav-side:first'),
-          win = $(window),
-          sticky_nav_class = 'stickynav',
-          apply_stickynav = function () {
-              if (nav_bar.height() <= win.height()) {
-                  nav_bar.addClass(sticky_nav_class);
-              } else {
-                  nav_bar.removeClass(sticky_nav_class);
-              }
-          };
-      win.on('resize', apply_stickynav);
-      apply_stickynav();
-    }
-    
+    footer.init();
+    sphinx.init();
+    grokthedocs.init();
+    mkdocs.init();
 });
diff --git a/readthedocs/core/static/core/js/readthedocs-doc-embed.js b/readthedocs/core/static/core/js/readthedocs-doc-embed.js
index 4504f5398cb..f8c52c56131 100644
--- a/readthedocs/core/static/core/js/readthedocs-doc-embed.js
+++ b/readthedocs/core/static/core/js/readthedocs-doc-embed.js
@@ -1 +1,546 @@
-!function t(e,o,r){function n(a,s){if(!o[a]){if(!e[a]){var c="function"==typeof require&&require;if(!s&&c)return c(a,!0);if(i)return i(a,!0);var d=new Error("Cannot find module '"+a+"'");throw d.code="MODULE_NOT_FOUND",d}var l=o[a]={exports:{}};e[a][0].call(l.exports,function(t){var o=e[a][1][t];return n(o?o:t)},l,l.exports,t,e,o,r)}return o[a].exports}for(var i="function"==typeof require&&require,a=0;a<r.length;a++)n(r[a]);return n}({1:[function(t,e,o){function r(t){this.config=t,"sphinx_rtd_theme"!=this.config.theme&&1==$("div.rst-other-versions").length&&(this.config.theme="sphinx_rtd_theme"),void 0==this.config.api_host&&(this.config.api_host="https://readthedocs.org")}e.exports={Build:r},r.prototype.is_rtd_theme=function(){return"sphinx_rtd_theme"==this.config.theme},r.prototype.is_sphinx_builder=function(){return!("builder"in this.config)||"mkdocs"!=this.config.builder},r.prototype.show_promo=function(){return"https://readthedocs.com"!=this.config.api_host&&this.is_sphinx_builder()&&this.is_rtd_theme()}},{}],2:[function(t,e,o){var r=t("./sponsorship"),n=t("./doc");$(document).ready(function(){function t(t){var e=t.closest("li");e.siblings("li.current").removeClass("current"),e.siblings().find("li.current").removeClass("current"),e.find("> ul li.current").removeClass("current"),e.toggleClass("current")}function e(t){if(!t.is_highest){var e=window.location.pathname.replace(READTHEDOCS_DATA.version,t.slug),o=$('<div class="admonition warning"> <p class="first                          admonition-title">Note</p> <p class="last">                          You are not using the most up to date version                          of the library. <a href="#"></a> is the newest version.</p>                         </div>');o.find("a").attr("href",e).text(t.version),body=$("div.body"),body.length||(body=$("div.document")),body.prepend(o)}}var o=new n.Build(READTHEDOCS_DATA);get_data={project:READTHEDOCS_DATA.project,version:READTHEDOCS_DATA.version,page:READTHEDOCS_DATA.page,theme:READTHEDOCS_DATA.theme,format:"jsonp"},"docroot"in READTHEDOCS_DATA&&(get_data.docroot=READTHEDOCS_DATA.docroot),"source_suffix"in READTHEDOCS_DATA&&(get_data.source_suffix=READTHEDOCS_DATA.source_suffix);var i=READTHEDOCS_DATA.api_host;void 0===i&&(i="https://readthedocs.org"),0===window.location.pathname.indexOf("/projects/")&&(get_data.subproject=!0),$.ajax({url:i+"/api/v2/footer_html/",crossDomain:!0,xhrFields:{withCredentials:!0},dataType:"jsonp",data:get_data,success:function(t){function e(t){return/^(GET|HEAD|OPTIONS|TRACE)$/.test(t)}if(o.is_rtd_theme()?$("div.rst-other-versions").html(t.html):$("body").append(t.html),t.version_active?!t.version_supported:$(".rst-current-version").addClass("rst-out-of-date"),t.promo&&o.show_promo()){var n=new r.Promo(t.promo_data.id,t.promo_data.text,t.promo_data.link,t.promo_data.image);n&&n.display()}$.ajaxSetup({beforeSend:function(t,o){e(o.type)||t.setRequestHeader("X-CSRFToken",$("a.bookmark[token]").attr("token"))}})},error:function(){console.log("Error loading Read the Docs footer")}}),$(document).on("click","[data-toggle='rst-current-version']",function(){var t=$("[data-toggle='rst-versions']").hasClass("shift-up")?"was_open":"was_closed";_gaq&&_gaq.push(["rtfd._setAccount","UA-17997319-1"],["rtfd._trackEvent","Flyout","Click",t])}),(!("builder"in READTHEDOCS_DATA)||"builder"in READTHEDOCS_DATA&&"mkdocs"!=READTHEDOCS_DATA.builder)&&($(document).on("click","[data-toggle='wy-nav-top']",function(){$("[data-toggle='wy-nav-shift']").toggleClass("shift"),$("[data-toggle='rst-versions']").toggleClass("shift")}),$(document).on("click",".wy-menu-vertical .current ul li a",function(){var e=$(this);$("[data-toggle='wy-nav-shift']").removeClass("shift"),$("[data-toggle='rst-versions']").toggleClass("shift"),t(e),"undefined"!=typeof window.SphinxRtdTheme&&window.SphinxRtdTheme.StickyNav.hashChange()}),$(document).on("click","[data-toggle='rst-current-version']",function(){$("[data-toggle='rst-versions']").toggleClass("shift-up")}),$("table.docutils:not(.field-list)").wrap("<div class='wy-table-responsive'></div>"),$(".wy-menu-vertical ul").siblings("a").each(function(){var e=$(this);expand=$('<span class="toctree-expand"></span>'),expand.on("click",function(o){return t(e),o.stopPropagation(),!1}),e.prepend(expand)}),window.SphinxRtdTheme=function(t){var e=function(){var e,o,r=!1,n=!1,i=0,a=function(){s(),c(),o.on("hashchange",c),o.on("scroll",function(){n||(r=!0)}),setInterval(function(){if(r){r=!1;var t=o.scrollTop(),n=e.scrollTop(),a=n+(t-i);e.scrollTop(a),i=t}},25)},s=function(){e=t("nav.wy-nav-side:first"),o=t(window)},c=function(){var t=encodeURI(window.location.hash);if(t)try{var e=$(".wy-menu-vertical").find('[href="'+t+'"]');$(".wy-menu-vertical li.toctree-l1 li.current").removeClass("current"),e.closest("li.toctree-l2").addClass("current"),e.closest("li.toctree-l3").addClass("current"),e.closest("li.toctree-l4").addClass("current")}catch(o){console.log("Error expanding nav for anchor",o)}},d=function(){n=!0,o.one("hashchange",function(){n=!1})};return t(s),{enable:a,hashChange:d}}();return{StickyNav:e}}($)),$.ajax({url:"https://api.grokthedocs.com/static/javascript/bundle-client.js",crossDomain:!0,dataType:"script"});var a=[i+"/api/v1/version/",READTHEDOCS_DATA.project,"/highest/",READTHEDOCS_DATA.version,"/?callback=?"].join("");if($.getJSON(a,e),"builder"in READTHEDOCS_DATA&&"mkdocs"==READTHEDOCS_DATA.builder){$("<input>").attr({type:"hidden",name:"project",value:READTHEDOCS_DATA.project}).appendTo("#rtd-search-form"),$("<input>").attr({type:"hidden",name:"version",value:READTHEDOCS_DATA.version}).appendTo("#rtd-search-form"),$("<input>").attr({type:"hidden",name:"type",value:"file"}).appendTo("#rtd-search-form"),$("#rtd-search-form").prop("action",i+"/elasticsearch/");var s=$("nav.wy-nav-side:first"),c=$(window),d="stickynav",l=function(){s.height()<=c.height()?s.addClass(d):s.removeClass(d)};c.on("resize",l),l()}})},{"./doc":1,"./sponsorship":3}],3:[function(t,e,o){function r(t,e,o,r){this.id=t,this.text=e,this.link=o,this.image=r,this.promo=null}var n=window.$;e.exports={Promo:r},r.prototype.create=function(){function t(){_gaq&&_gaq.push(["rtfd._setAccount","UA-17997319-1"],["rtfd._trackEvent","Promo","Click",e.id])}var e=this,o=n("nav.wy-nav-side");if(o.length){promo=n("<div />").attr("class","wy-menu rst-pro");{var r=n("<div />").attr("class","rst-pro-about"),i=n("<a />").attr("href","http://docs.readthedocs.org/en/latest/sponsors.html#sponsorship-information").appendTo(r);n("<i />").attr("class","fa fa-info-circle").appendTo(i)}if(r.appendTo(promo),e.image){{var a=n("<a />").attr("class","rst-pro-image-wrapper").attr("href",e.link).attr("target","_blank").on("click",t);n("<img />").attr("class","rst-pro-image").attr("src",e.image).appendTo(a)}promo.append(a)}var s=n("<span />").html(e.text);return n(s).find("a").each(function(){n(this).attr("class","rst-pro-link").attr("href",e.link).attr("target","_blank").on("click",t)}),promo.append(s),promo.appendTo(o),promo.wrapper=n("<div />").attr("class","rst-pro-wrapper").appendTo(o),promo}},r.prototype.display=function(){var 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+// Documentation build state
+
+module.exports = {
+    Build: Build
+};
+
+function Build (config) {
+    this.config = config;
+
+    // Crappy heuristic, but people change the theme name on us.  So we have to
+    // do some duck typing.
+    if (this.config['theme'] != 'sphinx_rtd_theme') {
+        if ($('div.rst-other-versions').length == 1) {
+            this.config['theme'] = 'sphinx_rtd_theme';
+        }
+    }
+
+    if (this.config['api_host'] == undefined) {
+        this.config['api_host'] = 'https://readthedocs.org';
+    }
+}
+
+Build.prototype.is_rtd_theme = function () {
+    return (this.config['theme'] == 'sphinx_rtd_theme');
+};
+
+Build.prototype.is_sphinx_builder = function () {
+    return (!('builder' in this.config) || this.config['builder'] != 'mkdocs');
+};
+
+Build.prototype.show_promo = function () {
+    return (this.config['api_host'] != 'https://readthedocs.com'
+            && this.is_sphinx_builder()
+            && this.is_rtd_theme()
+           );
+};
+
+},{}],2:[function(require,module,exports){
+var Build = require('./build').Build;
+var rtddata = require('./rtd-data');
+var versionCompare = require('./version-compare');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    var get_data = {
+        project: rtd['project'],
+        version: rtd['version'],
+        page: rtd['page'],
+        theme: rtd['theme'],
+        format: "jsonp",
+    };
+
+    // Crappy heuristic, but people change the theme name on us.
+    // So we have to do some duck typing.
+    if ("docroot" in rtd) {
+        get_data['docroot'] = rtd['docroot'];
+    }
+
+    if ("source_suffix" in rtd) {
+        get_data['source_suffix'] = rtd['source_suffix'];
+    }
+
+    if (window.location.pathname.indexOf('/projects/') === 0) {
+        get_data['subproject'] = true;
+    }
+
+    // Get footer HTML from API and inject it into the page.
+    $.ajax({
+        url: rtd.api_host + "/api/v2/footer_html/",
+        crossDomain: true,
+        xhrFields: {
+            withCredentials: true,
+        },
+        dataType: "jsonp",
+        data: get_data,
+        success: function (data) {
+            versionCompare.init(data.version_compare);
+            injectFooter(data);
+            setupBookmarkCSRFToken();
+        },
+        error: function () {
+            console.error('Error loading Read the Docs footer');
+        }
+    });
+}
+
+
+function injectFooter(data) {
+    var build = new Build(rtddata.get());
+
+    // If the theme looks like ours, update the existing badge
+    // otherwise throw a a full one into the page.
+    if (build.is_rtd_theme()) {
+        $("div.rst-other-versions").html(data['html']);
+    } else {
+        $("body").append(data['html']);
+    }
+
+    if (!data['version_active']) {
+        $('.rst-current-version').addClass('rst-out-of-date');
+    } else if (!data['version_supported']) {
+        //$('.rst-current-version').addClass('rst-active-old-version')
+    }
+
+    // Show promo selectively
+    if (data.promo && build.show_promo()) {
+        var promo = new sponsorship.Promo(
+            data.promo_data.id,
+            data.promo_data.text,
+            data.promo_data.link,
+            data.promo_data.image
+        )
+        if (promo) {
+            promo.display();
+        }
+    }
+}
+
+
+function setupBookmarkCSRFToken() {
+    function csrfSafeMethod(method) {
+        // these HTTP methods do not require CSRF protection
+        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+    }
+
+    $.ajaxSetup({
+        beforeSend: function(xhr, settings) {
+            if (!csrfSafeMethod(settings.type)) {
+                xhr.setRequestHeader("X-CSRFToken", $('a.bookmark[token]').attr('token'));
+            }
+        }
+    });
+}
+
+
+module.exports = {
+    init: init
+};
+
+},{"./build":1,"./rtd-data":5,"./version-compare":7}],3:[function(require,module,exports){
+function init() {
+    // Add Grok the Docs Client
+    $.ajax({
+        url: "https://api.grokthedocs.com/static/javascript/bundle-client.js",
+        crossDomain: true,
+        dataType: "script",
+    });
+}
+
+
+module.exports = {
+    init: init
+};
+
+},{}],4:[function(require,module,exports){
+/*
+ * Mkdocs specific JS code.
+ */
+
+
+var rtddata = require('./rtd-data');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    // Override MkDocs styles
+    if ("builder" in rtd && rtd["builder"] == "mkdocs") {
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'project',
+          value: rtd["project"]
+      }).appendTo('#rtd-search-form');
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'version',
+          value: rtd["version"]
+      }).appendTo('#rtd-search-form');
+      $('<input>').attr({
+          type: 'hidden',
+          name: 'type',
+          value: 'file'
+      }).appendTo('#rtd-search-form');
+
+      $("#rtd-search-form").prop("action", rtd.api_host + "/elasticsearch/");
+
+      // Apply stickynav to mkdocs builds
+      var nav_bar = $('nav.wy-nav-side:first'),
+          win = $(window),
+          sticky_nav_class = 'stickynav',
+          apply_stickynav = function () {
+              if (nav_bar.height() <= win.height()) {
+                  nav_bar.addClass(sticky_nav_class);
+              } else {
+                  nav_bar.removeClass(sticky_nav_class);
+              }
+          };
+      win.on('resize', apply_stickynav);
+      apply_stickynav();
+    }
+
+}
+
+
+module.exports = {
+    init: init
+};
+
+},{"./rtd-data":5}],5:[function(require,module,exports){
+/*
+ * This exposes data injected during the RTD build into the template. It's
+ * provided via the global READTHEDOCS_DATA variable and is exposed here as a
+ * module for cleaner usage.
+ */
+
+
+/*
+ * Access READTHEDOCS_DATA on call, not on module load. The reason is that the
+ * READTHEDOCS_DATA might not be available during script load time.
+ */
+function get() {
+    return $.extend({
+        api_host: 'https://readthedocs.org'
+    }, window.READTHEDOCS_DATA);
+}
+
+
+module.exports = {
+    get: get
+};
+
+},{}],6:[function(require,module,exports){
+/*
+ * Sphinx builder specific JS code.
+ */
+
+
+var rtddata = require('./rtd-data');
+
+
+function init() {
+    var rtd = rtddata.get();
+
+    /// Click tracking on flyout
+    $(document).on('click', "[data-toggle='rst-current-version']", function() {
+      var flyout_state = $("[data-toggle='rst-versions']").hasClass('shift-up') ? 'was_open' : 'was_closed'
+      if (_gaq) {
+        _gaq.push(
+            ['rtfd._setAccount', 'UA-17997319-1'],
+            ['rtfd._trackEvent', 'Flyout', 'Click', flyout_state]
+        );
+      }
+    });
+
+    /// Read the Docs Sphinx theme code
+    if (!("builder" in rtd) || "builder" in rtd && rtd["builder"] != "mkdocs") {
+        function toggleCurrent (elem) {
+            var parent_li = elem.closest('li');
+            parent_li.siblings('li.current').removeClass('current');
+            parent_li.siblings().find('li.current').removeClass('current');
+            parent_li.find('> ul li.current').removeClass('current');
+            parent_li.toggleClass('current');
+        }
+
+        // Shift nav in mobile when clicking the menu.
+        $(document).on('click', "[data-toggle='wy-nav-top']", function() {
+            $("[data-toggle='wy-nav-shift']").toggleClass("shift");
+            $("[data-toggle='rst-versions']").toggleClass("shift");
+        });
+        // Nav menu link click operations
+        $(document).on('click', ".wy-menu-vertical .current ul li a", function() {
+            var target = $(this);
+            // Close menu when you click a link.
+            $("[data-toggle='wy-nav-shift']").removeClass("shift");
+            $("[data-toggle='rst-versions']").toggleClass("shift");
+            // Handle dynamic display of l3 and l4 nav lists
+            toggleCurrent(target);
+            if (typeof(window.SphinxRtdTheme) != 'undefined') {
+                window.SphinxRtdTheme.StickyNav.hashChange();
+            }
+        });
+        $(document).on('click', "[data-toggle='rst-current-version']", function() {
+            $("[data-toggle='rst-versions']").toggleClass("shift-up");
+        });
+        // Make tables responsive
+        $("table.docutils:not(.field-list)").wrap("<div class='wy-table-responsive'></div>");
+
+        // Add expand links to all parents of nested ul
+        $('.wy-menu-vertical ul').siblings('a').each(function () {
+            var link = $(this);
+                expand = $('<span class="toctree-expand"></span>');
+            expand.on('click', function (ev) {
+                toggleCurrent(link);
+                ev.stopPropagation();
+                return false;
+            });
+            link.prepend(expand);
+        });
+
+        // Sphinx theme state
+        window.SphinxRtdTheme = (function (jquery) {
+            var stickyNav = (function () {
+                var navBar,
+                    win,
+                    winScroll = false,
+                    linkScroll = false,
+                    winPosition = 0,
+                    enable = function () {
+                        init();
+                        reset();
+                        win.on('hashchange', reset);
+
+                        // Set scrolling
+                        win.on('scroll', function () {
+                            if (!linkScroll) {
+                                winScroll = true;
+                            }
+                        });
+                        setInterval(function () {
+                            if (winScroll) {
+                                winScroll = false;
+                                var newWinPosition = win.scrollTop(),
+                                    navPosition = navBar.scrollTop(),
+                                    newNavPosition = navPosition + (newWinPosition - winPosition);
+                                navBar.scrollTop(newNavPosition);
+                                winPosition = newWinPosition;
+                            }
+                        }, 25);
+                    },
+                    init = function () {
+                        navBar = jquery('nav.wy-nav-side:first');
+                        win = jquery(window);
+                    },
+                    reset = function () {
+                        // Get anchor from URL and open up nested nav
+                        var anchor = encodeURI(window.location.hash);
+                        if (anchor) {
+                            try {
+                                var link = $('.wy-menu-vertical')
+                                    .find('[href="' + anchor + '"]');
+                                $('.wy-menu-vertical li.toctree-l1 li.current')
+                                    .removeClass('current');
+                                link.closest('li.toctree-l2').addClass('current');
+                                link.closest('li.toctree-l3').addClass('current');
+                                link.closest('li.toctree-l4').addClass('current');
+                            }
+                            catch (err) {
+                                console.log("Error expanding nav for anchor", err);
+                            }
+                        }
+                    },
+                    hashChange = function () {
+                        linkScroll = true;
+                        win.one('hashchange', function () {
+                            linkScroll = false;
+                        });
+                    };
+                jquery(init);
+                return {
+                    enable: enable,
+                    hashChange: hashChange
+                };
+            }());
+            return {
+                StickyNav: stickyNav
+            };
+        }($));
+    }
+
+}
+
+
+module.exports = {
+    init: init
+};
+
+},{"./rtd-data":5}],7:[function(require,module,exports){
+var rtddata = require('./rtd-data');
+
+
+function init(data) {
+    var rtd = rtddata.get();
+
+    /// Out of date message
+
+    if (data.is_highest) {
+        return;
+    }
+
+    var currentURL = window.location.pathname.replace(rtd['version'], data.slug);
+    var warning = $(
+        '<div class="admonition warning"> ' +
+        '<p class="first admonition-title">Note</p> ' +
+        '<p class="last"> ' +
+        'You are not using the most up to date version of the library. ' +
+        '<a href="#"></a> is the newest version.' +
+        '</p>' +
+        '</div>');
+
+    warning
+      .find('a')
+      .attr('href', currentURL)
+      .text(data.version);
+
+    var body = $("div.body");
+    if (!body.length) {
+        body = $("div.document");
+    }
+    body.prepend(warning);
+}
+
+
+module.exports = {
+    init: init
+};
+
+},{"./rtd-data":5}],8:[function(require,module,exports){
+var sponsorship = require('./sponsorship'),
+    footer = require('./doc-embed/footer.js'),
+    grokthedocs = require('./doc-embed/grokthedocs-client'),
+    mkdocs = require('./doc-embed/mkdocs'),
+    rtddata = require('./doc-embed/rtd-data'),
+    sphinx = require('./doc-embed/sphinx');
+
+$(document).ready(function () {
+    footer.init();
+    sphinx.init();
+    grokthedocs.init();
+    mkdocs.init();
+});
+
+},{"./doc-embed/footer.js":2,"./doc-embed/grokthedocs-client":3,"./doc-embed/mkdocs":4,"./doc-embed/rtd-data":5,"./doc-embed/sphinx":6,"./sponsorship":9}],9:[function(require,module,exports){
+/* Read the Docs - Documentation promotions */
+
+var $ = window.$;
+
+module.exports = {
+    Promo: Promo
+};
+
+function Promo (id, text, link, image) {
+    this.id = id;
+    this.text = text;
+    this.link = link;
+    this.image = image;
+    this.promo = null;
+}
+
+Promo.prototype.create = function () {
+    var self = this,
+        nav_side = $('nav.wy-nav-side');
+
+    if (nav_side.length) {
+        // Add elements
+        promo = $('<div />')
+            .attr('class', 'wy-menu rst-pro');
+
+        // Promo info
+        var promo_about = $('<div />')
+            .attr('class', 'rst-pro-about');
+        var promo_about_link = $('<a />')
+            .attr('href', 'http://docs.readthedocs.org/en/latest/sponsors.html#sponsorship-information')
+            .appendTo(promo_about);
+        var promo_about_icon = $('<i />')
+            .attr('class', 'fa fa-info-circle')
+            .appendTo(promo_about_link);
+        promo_about.appendTo(promo);
+
+        // On Click handler
+        function promo_click() {
+            if (_gaq) {
+                _gaq.push(
+                    ['rtfd._setAccount', 'UA-17997319-1'],
+                    ['rtfd._trackEvent', 'Promo', 'Click', self.id]
+                );
+            }
+        }
+
+        // Promo image
+        if (self.image) {
+            var promo_image_link = $('<a />')
+                .attr('class', 'rst-pro-image-wrapper')
+                .attr('href', self.link)
+                .attr('target', '_blank')
+                .on('click', promo_click);
+            var promo_image = $('<img />')
+                .attr('class', 'rst-pro-image')
+                .attr('src', self.image)
+                .appendTo(promo_image_link);
+            promo.append(promo_image_link);
+        }
+
+        // Create link with callback
+        var promo_text = $('<span />')
+            .html(self.text);
+        $(promo_text).find('a').each(function () {
+            $(this)
+                .attr('class', 'rst-pro-link')
+                .attr('href', self.link)
+                .attr('target', '_blank')
+                .on('click', promo_click);
+        });
+        promo.append(promo_text);
+
+        promo.appendTo(nav_side);
+
+        promo.wrapper = $('<div />')
+            .attr('class', 'rst-pro-wrapper')
+            .appendTo(nav_side);
+
+        return promo;
+    }
+}
+
+// Position promo
+Promo.prototype.display = function () {
+    var promo = this.promo,
+        self = this;
+
+    if (! promo) {
+        promo = this.promo = this.create();
+    }
+    promo.show();
+}
+
+Promo.prototype.disable = function () {
+}
+
+// Variant factory method
+Promo.from_variants = function (variants) {
+    if (variants.length == 0) {
+        return null;
+    }
+    var chosen = Math.floor(Math.random() * variants.length),
+        variant = variants[chosen],
+        text = variant.text,
+        link = variant.link,
+        image = variant.image,
+        id = variant.id;
+    return new Promo(id, text, link, image);
+};
+
+},{}]},{},[8]);
diff --git a/readthedocs/donate/static/donate/js/donate.js b/readthedocs/donate/static/donate/js/donate.js
index 956fa1a9887..69c52c4f450 100644
--- a/readthedocs/donate/static/donate/js/donate.js
+++ b/readthedocs/donate/static/donate/js/donate.js
@@ -1 +1 @@
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o=String.fromCharCode(t.which),!/^\d+$/.test(o)||(n=$(t.currentTarget),l=n.val(),r=e(l+o),a=(l.replace(/\D/g,"")+o).length,u=16,r&&(u=r.length[r.length.length-1]),a>=u||null!=n.prop("selectionStart")&&n.prop("selectionStart")!==l.length)?void 0:(i=r&&"amex"===r.type?/^(\d{4}|\d{4}\s\d{6})$/:/(?:^|\s)(\d{4})$/,i.test(l)?(t.preventDefault(),setTimeout(function(){return n.val(l+" "+o)})):i.test(l+o)?(t.preventDefault(),setTimeout(function(){return n.val(l+o+" ")})):void 0)},o=function(e){var t,n;return t=$(e.currentTarget),n=t.val(),8!==e.which||null!=t.prop("selectionStart")&&t.prop("selectionStart")!==n.length?void 0:/\d\s$/.test(n)?(e.preventDefault(),setTimeout(function(){return t.val(n.replace(/\d\s$/,""))})):/\s\d?$/.test(n)?(e.preventDefault(),setTimeout(function(){return t.val(n.replace(/\d$/,""))})):void 0},f=function(e){return setTimeout(function(){var t,n;return t=$(e.currentTarget),n=t.val(),n=$.payment.formatExpiry(n),t.val(n)})},u=function(e){var t,n,r;return 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t=this,e=e||{};i.publishableKey=t.stripe_key=e.key,t.form=e.form,t.cc_number=o.observable(null),t.cc_expiry=o.observable(null),t.cc_cvv=o.observable(null),t.cc_error_number=o.observable(null),t.cc_error_expiry=o.observable(null),t.cc_error_cvv=o.observable(null),t.initialize_form(),t.error=o.observable(null),t.process_form=function(){var e=a.payment.cardExpiryVal(t.cc_expiry()),n={number:t.cc_number(),exp_month:e.month,exp_year:e.year,cvc:t.cc_cvv()};return t.error(null),t.cc_error_number(null),t.cc_error_expiry(null),t.cc_error_cvv(null),a.payment.validateCardNumber(n.number)?a.payment.validateCardExpiry(n.exp_month,n.exp_year)?a.payment.validateCardCVC(n.cvc)?void i.createToken(n,function(e,n){if(200===e){var r=t.form.find("#id_last_4_digits"),o=t.form.find("#id_stripe_id,#id_stripe_token");r.val(n.card.last4),o.val(n.id),t.form.submit()}else t.error(n.error.message)}):(t.cc_error_cvv("Invalid security code"),!1):(t.cc_error_expiry("Invalid expiration 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+!function e(t,n,r){function o(i,u){if(!n[i]){if(!t[i]){var l="function"==typeof require&&require;if(!u&&l)return l(i,!0);if(a)return a(i,!0);var c=new Error("Cannot find module '"+i+"'");throw c.code="MODULE_NOT_FOUND",c}var s=n[i]={exports:{}};t[i][0].call(s.exports,function(e){var n=t[i][1][e];return o(n?n:e)},s,s.exports,e,t,n,r)}return n[i].exports}for(var a="function"==typeof require&&require,i=0;i<r.length;i++)o(r[i]);return o}({1:[function(e,t,n){(function(){var e,t,n,r,o,a,i,u,l,c,s,p,d,h,f,v,m,g,y,w,_,b=[].slice,C=[].indexOf||function(e){for(var t=0,n=this.length;n>t;t++)if(t in this&&this[t]===e)return t;return-1};$.payment={},$.payment.fn={},$.fn.payment=function(){var e,t;return 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t=$(e.currentTarget),n=t.val(),n=n.replace(/\D/g,"").slice(0,4),t.val(n)})},w=function(e){var t;return e.metaKey||e.ctrlKey?!0:32===e.which?!1:0===e.which?!0:e.which<33?!0:(t=String.fromCharCode(e.which),!!/[\d\s]/.test(t))},g=function(t){var n,r,o,a;return n=$(t.currentTarget),o=String.fromCharCode(t.which),/^\d+$/.test(o)&&!s(n)?(a=(n.val()+o).replace(/\D/g,""),r=e(a),r?a.length<=r.length[r.length.length-1]:a.length<=16):void 0},y=function(e){var t,n,r;return t=$(e.currentTarget),n=String.fromCharCode(e.which),/^\d+$/.test(n)&&!s(t)?(r=t.val()+n,r=r.replace(/\D/g,""),r.length>6?!1:void 0):void 0},m=function(e){var t,n,r;return t=$(e.currentTarget),n=String.fromCharCode(e.which),/^\d+$/.test(n)&&!s(t)?(r=t.val()+n,r.length<=4):void 0},_=function(e){var t,r,o,a,i;return t=$(e.currentTarget),i=t.val(),a=$.payment.cardType(i)||"unknown",t.hasClass(a)?void 0:(r=function(){var e,t,r;for(r=[],e=0,t=n.length;t>e;e++)o=n[e],r.push(o.type);return r}(),t.removeClass("unknown"),t.removeClass(r.join(" ")),t.addClass(a),t.toggleClass("identified","unknown"!==a),t.trigger("payment.cardType",a))},$.payment.fn.formatCardCVC=function(){return this.on("keypress",w),this.on("keypress",m),this.on("paste",d),this.on("change",d),this.on("input",d),this},$.payment.fn.formatCardExpiry=function(){return this.on("keypress",w),this.on("keypress",y),this.on("keypress",u),this.on("keypress",c),this.on("keypress",l),this.on("keydown",a),this.on("change",f),this.on("input",f),this},$.payment.fn.formatCardNumber=function(){return this.on("keypress",w),this.on("keypress",g),this.on("keypress",i),this.on("keydown",o),this.on("keyup",_),this.on("paste",h),this.on("change",h),this.on("input",h),this.on("input",_),this},$.payment.fn.restrictNumeric=function(){return this.on("keypress",w),this.on("paste",v),this.on("change",v),this.on("input",v),this},$.payment.fn.cardExpiryVal=function(){return $.payment.cardExpiryVal($(this).val())},$.payment.cardExpiryVal=function(e){var t,n,r,o;return e=e.replace(/\s/g,""),o=e.split("/",2),t=o[0],r=o[1],2===(null!=r?r.length:void 0)&&/^\d+$/.test(r)&&(n=(new Date).getFullYear(),n=n.toString().slice(0,2),r=n+r),t=parseInt(t,10),r=parseInt(r,10),{month:t,year:r}},$.payment.validateCardNumber=function(t){var n,r;return t=(t+"").replace(/\s+|-/g,""),/^\d+$/.test(t)?(n=e(t),n?(r=t.length,C.call(n.length,r)>=0&&(n.luhn===!1||p(t))):!1):!1},$.payment.validateCardExpiry=function(e,t){var n,r,o;return"object"==typeof e&&"month"in e&&(o=e,e=o.month,t=o.year),e&&t?(e=$.trim(e),t=$.trim(t),/^\d+$/.test(e)&&/^\d+$/.test(t)&&e>=1&&12>=e?(2===t.length&&(t=70>t?"20"+t:"19"+t),4!==t.length?!1:(r=new Date(t,e),n=new Date,r.setMonth(r.getMonth()-1),r.setMonth(r.getMonth()+1,1),r>n)):!1):!1},$.payment.validateCardCVC=function(e,n){var r,o;return e=$.trim(e),/^\d+$/.test(e)?(r=t(n),null!=r?(o=e.length,C.call(r.cvcLength,o)>=0):e.length>=3&&e.length<=4):!1},$.payment.cardType=function(t){var n;return t?(null!=(n=e(t))?n.type:void 0)||null:null},$.payment.formatCardNumber=function(t){var n,r,o,a;return t=t.replace(/\D/g,""),(n=e(t))?(o=n.length[n.length.length-1],t=t.slice(0,o),n.format.global?null!=(a=t.match(n.format))?a.join(" "):void 0:(r=n.format.exec(t),null!=r?(r.shift(),r=$.grep(r,function(e){return e}),r.join(" ")):void 0)):t},$.payment.formatExpiry=function(e){var t,n,r,o;return(n=e.match(/^\D*(\d{1,2})(\D+)?(\d{1,4})?/))?(t=n[1]||"",r=n[2]||"",o=n[3]||"",o.length>0?r=" / ":" /"===r?(t=t.substring(0,1),r=""):2===t.length||r.length>0?r=" / ":1===t.length&&"0"!==t&&"1"!==t&&(t="0"+t,r=" / "),t+r+o):""}}).call(this)},{}],2:[function(e,t,n){function r(e){var t=this,e=e||{};i.publishableKey=t.stripe_key=e.key,t.form=e.form,t.cc_number=o.observable(null),t.cc_expiry=o.observable(null),t.cc_cvv=o.observable(null),t.cc_error_number=o.observable(null),t.cc_error_expiry=o.observable(null),t.cc_error_cvv=o.observable(null),t.initialize_form(),t.error=o.observable(null),t.process_form=function(){var e=a.payment.cardExpiryVal(t.cc_expiry()),n={number:t.cc_number(),exp_month:e.month,exp_year:e.year,cvc:t.cc_cvv()};return t.error(null),t.cc_error_number(null),t.cc_error_expiry(null),t.cc_error_cvv(null),a.payment.validateCardNumber(n.number)?a.payment.validateCardExpiry(n.exp_month,n.exp_year)?a.payment.validateCardCVC(n.cvc)?void i.createToken(n,function(e,n){if(200===e){var r=t.form.find("#id_last_4_digits"),o=t.form.find("#id_stripe_id,#id_stripe_token");r.val(n.card.last4),o.val(n.id),t.form.submit()}else t.error(n.error.message)}):(t.cc_error_cvv("Invalid security code"),!1):(t.cc_error_expiry("Invalid expiration 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o.PaymentView(e)),t.dollars=a.observable(),t.logo_url=a.observable(),t.site_url=a.observable(),a.computed(function(){var e=window.$("input#id_logo_url").closest("p"),n=window.$("input#id_site_url").closest("p");t.dollars()<400?(t.logo_url(null),t.site_url(null),e.hide(),n.hide()):(e.show(),n.show())}),t.urls_enabled=a.computed(function(){return t.dollars()>=400})}var o=e("../../../../core/static-src/core/js/payment"),a=e("knockout");r.init=function(e,t){var n=new r(e),t=t||$("#donate-payment")[0];return a.applyBindings(n,t),n},t.exports.DonateView=r,"undefined"!=typeof window&&(window.donate=t.exports)},{"../../../../core/static-src/core/js/payment":2,knockout:"knockout"}]},{},[3]);
\ No newline at end of file
diff --git a/readthedocs/gold/static/gold/js/gold.js b/readthedocs/gold/static/gold/js/gold.js
index 5d048739b13..e25d4d7e881 100644
--- a/readthedocs/gold/static/gold/js/gold.js
+++ b/readthedocs/gold/static/gold/js/gold.js
@@ -1 +1 @@
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e=$(t.currentTarget),n=e.val(),n=n.replace(/\D/g,"").slice(0,4),e.val(n)})},w=function(t){var e;return t.metaKey||t.ctrlKey?!0:32===t.which?!1:0===t.which?!0:t.which<33?!0:(e=String.fromCharCode(t.which),!!/[\d\s]/.test(e))},y=function(e){var n,r,o,a;return n=$(e.currentTarget),o=String.fromCharCode(e.which),/^\d+$/.test(o)&&!s(n)?(a=(n.val()+o).replace(/\D/g,""),r=t(a),r?a.length<=r.length[r.length.length-1]:a.length<=16):void 0},g=function(t){var e,n,r;return e=$(t.currentTarget),n=String.fromCharCode(t.which),/^\d+$/.test(n)&&!s(e)?(r=e.val()+n,r=r.replace(/\D/g,""),r.length>6?!1:void 0):void 0},m=function(t){var e,n,r;return e=$(t.currentTarget),n=String.fromCharCode(t.which),/^\d+$/.test(n)&&!s(e)?(r=e.val()+n,r.length<=4):void 0},C=function(t){var e,r,o,a,i;return e=$(t.currentTarget),i=e.val(),a=$.payment.cardType(i)||"unknown",e.hasClass(a)?void 0:(r=function(){var t,e,r;for(r=[],t=0,e=n.length;e>t;t++)o=n[t],r.push(o.type);return 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$.payment.cardExpiryVal($(this).val())},$.payment.cardExpiryVal=function(t){var e,n,r,o;return t=t.replace(/\s/g,""),o=t.split("/",2),e=o[0],r=o[1],2===(null!=r?r.length:void 0)&&/^\d+$/.test(r)&&(n=(new Date).getFullYear(),n=n.toString().slice(0,2),r=n+r),e=parseInt(e,10),r=parseInt(r,10),{month:e,year:r}},$.payment.validateCardNumber=function(e){var n,r;return e=(e+"").replace(/\s+|-/g,""),/^\d+$/.test(e)?(n=t(e),n?(r=e.length,b.call(n.length,r)>=0&&(n.luhn===!1||p(e))):!1):!1},$.payment.validateCardExpiry=function(t,e){var n,r,o;return"object"==typeof t&&"month"in t&&(o=t,t=o.month,e=o.year),t&&e?(t=$.trim(t),e=$.trim(e),/^\d+$/.test(t)&&/^\d+$/.test(e)&&t>=1&&12>=t?(2===e.length&&(e=70>e?"20"+e:"19"+e),4!==e.length?!1:(r=new Date(e,t),n=new Date,r.setMonth(r.getMonth()-1),r.setMonth(r.getMonth()+1,1),r>n)):!1):!1},$.payment.validateCardCVC=function(t,n){var r,o;return t=$.trim(t),/^\d+$/.test(t)?(r=e(n),null!=r?(o=t.length,b.call(r.cvcLength,o)>=0):t.length>=3&&t.length<=4):!1},$.payment.cardType=function(e){var n;return e?(null!=(n=t(e))?n.type:void 0)||null:null},$.payment.formatCardNumber=function(e){var n,r,o,a;return e=e.replace(/\D/g,""),(n=t(e))?(o=n.length[n.length.length-1],e=e.slice(0,o),n.format.global?null!=(a=e.match(n.format))?a.join(" "):void 0:(r=n.format.exec(e),null!=r?(r.shift(),r=$.grep(r,function(t){return t}),r.join(" ")):void 0)):e},$.payment.formatExpiry=function(t){var e,n,r,o;return(n=t.match(/^\D*(\d{1,2})(\D+)?(\d{1,4})?/))?(e=n[1]||"",r=n[2]||"",o=n[3]||"",o.length>0?r=" / ":" /"===r?(e=e.substring(0,1),r=""):2===e.length||r.length>0?r=" / ":1===e.length&&"0"!==e&&"1"!==e&&(e="0"+e,r=" / "),e+r+o):""}}).call(this)},{}],2:[function(t,e,n){function r(t){var e=this,t=t||{};i.publishableKey=e.stripe_key=t.key,e.form=t.form,e.cc_number=o.observable(null),e.cc_expiry=o.observable(null),e.cc_cvv=o.observable(null),e.cc_error_number=o.observable(null),e.cc_error_expiry=o.observable(null),e.cc_error_cvv=o.observable(null),e.initialize_form(),e.error=o.observable(null),e.process_form=function(){var t=a.payment.cardExpiryVal(e.cc_expiry()),n={number:e.cc_number(),exp_month:t.month,exp_year:t.year,cvc:e.cc_cvv()};return e.error(null),e.cc_error_number(null),e.cc_error_expiry(null),e.cc_error_cvv(null),a.payment.validateCardNumber(n.number)?a.payment.validateCardExpiry(n.exp_month,n.exp_year)?a.payment.validateCardCVC(n.cvc)?void i.createToken(n,function(t,n){if(200===t){var r=e.form.find("#id_last_4_digits"),o=e.form.find("#id_stripe_id,#id_stripe_token");r.val(n.card.last4),o.val(n.id),e.form.submit()}else e.error(n.error.message)}):(e.cc_error_cvv("Invalid security code"),!1):(e.cc_error_expiry("Invalid expiration date"),!1):(e.cc_error_number("Invalid card number"),console.log(n),!1)}}var o=t("knockout"),a=(t("./../../../../../bower_components/jquery.payment/lib/jquery.payment.js"),null),i=null;a="undefined"==typeof window?t("jquery"):window.$,"undefined"!=typeof window&&"undefined"!=typeof window.Stripe&&(i=window.Stripe||{}),r.prototype.initialize_form=function(){var t=a("input#cc-number"),e=a("input#cc-cvv"),n=a("input#cc-expiry");t.payment("formatCardNumber"),n.payment("formatCardExpiry"),e.payment("formatCardCVC")},r.init=function(t,e){var n=new GoldView(t),e=e||a("#payment-form")[0];return o.applyBindings(n,e),n},e.exports.PaymentView=r,"undefined"!=typeof window&&(window.payment=e.exports)},{"./../../../../../bower_components/jquery.payment/lib/jquery.payment.js":1,jquery:"jquery",knockout:"knockout"}],3:[function(t,e,n){function r(t){var e=this,t=t||{};a.utils.extend(e,new o.PaymentView(t))}var o=t("../../../../core/static-src/core/js/payment"),a=t("knockout");r.init=function(t,e){var n=new r(t),e=e||$("#payment-form")[0];return a.applyBindings(n,e),n},e.exports.GoldView=r,"undefined"!=typeof window&&(window.payment=e.exports)},{"../../../../core/static-src/core/js/payment":2,knockout:"knockout"}]},{},[3]);
\ No newline at end of file
+!function t(e,n,r){function o(i,u){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!u&&c)return c(i,!0);if(a)return a(i,!0);var l=new Error("Cannot find module '"+i+"'");throw l.code="MODULE_NOT_FOUND",l}var s=n[i]={exports:{}};e[i][0].call(s.exports,function(t){var n=e[i][1][t];return o(n?n:t)},s,s.exports,t,e,n,r)}return n[i].exports}for(var a="function"==typeof require&&require,i=0;i<r.length;i++)o(r[i]);return o}({1:[function(t,e,n){(function(){var t,e,n,r,o,a,i,u,c,l,s,p,h,d,f,v,m,y,g,w,C,_=[].slice,b=[].indexOf||function(t){for(var e=0,n=this.length;n>e;e++)if(e in this&&this[e]===t)return e;return-1};$.payment={},$.payment.fn={},$.fn.payment=function(){var t,e;return e=arguments[0],t=2<=arguments.length?_.call(arguments,1):[],$.payment.fn[e].apply(this,t)},r=/(\d{1,4})/g,$.payment.cards=n=[{type:"visaelectron",pattern:/^4(026|17500|405|508|844|91[37])/,format:r,length:[16],cvcLength:[3],luhn:!0},{type:"maestro",pattern:/^(5(018|0[23]|[68])|6(39|7))/,format:r,length:[12,13,14,15,16,17,18,19],cvcLength:[3],luhn:!0},{type:"forbrugsforeningen",pattern:/^600/,format:r,length:[16],cvcLength:[3],luhn:!0},{type:"dankort",pattern:/^5019/,format:r,length:[16],cvcLength:[3],luhn:!0},{type:"visa",pattern:/^4/,format:r,length:[13,16],cvcLength:[3],luhn:!0},{type:"mastercard",pattern:/^(5[0-5]|2[2-7])/,format:r,length:[16],cvcLength:[3],luhn:!0},{type:"amex",pattern:/^3[47]/,format:/(\d{1,4})(\d{1,6})?(\d{1,5})?/,length:[15],cvcLength:[3,4],luhn:!0},{type:"dinersclub",pattern:/^3[0689]/,format:/(\d{1,4})(\d{1,6})?(\d{1,4})?/,length:[14],cvcLength:[3],luhn:!0},{type:"discover",pattern:/^6([045]|22)/,format:r,length:[16],cvcLength:[3],luhn:!0},{type:"unionpay",pattern:/^(62|88)/,format:r,length:[16,17,18,19],cvcLength:[3],luhn:!1},{type:"jcb",pattern:/^35/,format:r,length:[16],cvcLength:[3],luhn:!0}],t=function(t){var e,r,o;for(t=(t+"").replace(/\D/g,""),r=0,o=n.length;o>r;r++)if(e=n[r],e.pattern.test(t))return e},e=function(t){var e,r,o;for(r=0,o=n.length;o>r;r++)if(e=n[r],e.type===t)return e},p=function(t){var e,n,r,o,a,i;for(r=!0,o=0,n=(t+"").split("").reverse(),a=0,i=n.length;i>a;a++)e=n[a],e=parseInt(e,10),(r=!r)&&(e*=2),e>9&&(e-=9),o+=e;return o%10===0},s=function(t){var e;return null!=t.prop("selectionStart")&&t.prop("selectionStart")!==t.prop("selectionEnd")?!0:null!=("undefined"!=typeof document&&null!==document&&null!=(e=document.selection)?e.createRange:void 0)&&document.selection.createRange().text?!0:!1},v=function(t){return setTimeout(function(){var e,n;return e=$(t.currentTarget),n=e.val(),n=n.replace(/\D/g,""),e.val(n)})},d=function(t){return setTimeout(function(){var e,n;return e=$(t.currentTarget),n=e.val(),n=$.payment.formatCardNumber(n),e.val(n)})},i=function(e){var n,r,o,a,i,u,c;return o=String.fromCharCode(e.which),!/^\d+$/.test(o)||(n=$(e.currentTarget),c=n.val(),r=t(c+o),a=(c.replace(/\D/g,"")+o).length,u=16,r&&(u=r.length[r.length.length-1]),a>=u||null!=n.prop("selectionStart")&&n.prop("selectionStart")!==c.length)?void 0:(i=r&&"amex"===r.type?/^(\d{4}|\d{4}\s\d{6})$/:/(?:^|\s)(\d{4})$/,i.test(c)?(e.preventDefault(),setTimeout(function(){return n.val(c+" "+o)})):i.test(c+o)?(e.preventDefault(),setTimeout(function(){return n.val(c+o+" ")})):void 0)},o=function(t){var e,n;return e=$(t.currentTarget),n=e.val(),8!==t.which||null!=e.prop("selectionStart")&&e.prop("selectionStart")!==n.length?void 0:/\d\s$/.test(n)?(t.preventDefault(),setTimeout(function(){return e.val(n.replace(/\d\s$/,""))})):/\s\d?$/.test(n)?(t.preventDefault(),setTimeout(function(){return e.val(n.replace(/\d$/,""))})):void 0},f=function(t){return setTimeout(function(){var e,n;return e=$(t.currentTarget),n=e.val(),n=$.payment.formatExpiry(n),e.val(n)})},u=function(t){var e,n,r;return n=String.fromCharCode(t.which),/^\d+$/.test(n)?(e=$(t.currentTarget),r=e.val()+n,/^\d$/.test(r)&&"0"!==r&&"1"!==r?(t.preventDefault(),setTimeout(function(){return e.val("0"+r+" / ")})):/^\d\d$/.test(r)?(t.preventDefault(),setTimeout(function(){return e.val(""+r+" / ")})):void 0):void 0},c=function(t){var e,n,r;return n=String.fromCharCode(t.which),/^\d+$/.test(n)?(e=$(t.currentTarget),r=e.val(),/^\d\d$/.test(r)?e.val(""+r+" / "):void 0):void 0},l=function(t){var e,n,r;return r=String.fromCharCode(t.which),"/"===r||" "===r?(e=$(t.currentTarget),n=e.val(),/^\d$/.test(n)&&"0"!==n?e.val("0"+n+" / "):void 0):void 0},a=function(t){var e,n;return e=$(t.currentTarget),n=e.val(),8!==t.which||null!=e.prop("selectionStart")&&e.prop("selectionStart")!==n.length?void 0:/\d\s\/\s$/.test(n)?(t.preventDefault(),setTimeout(function(){return e.val(n.replace(/\d\s\/\s$/,""))})):void 0},h=function(t){return setTimeout(function(){var e,n;return e=$(t.currentTarget),n=e.val(),n=n.replace(/\D/g,"").slice(0,4),e.val(n)})},w=function(t){var e;return t.metaKey||t.ctrlKey?!0:32===t.which?!1:0===t.which?!0:t.which<33?!0:(e=String.fromCharCode(t.which),!!/[\d\s]/.test(e))},y=function(e){var n,r,o,a;return n=$(e.currentTarget),o=String.fromCharCode(e.which),/^\d+$/.test(o)&&!s(n)?(a=(n.val()+o).replace(/\D/g,""),r=t(a),r?a.length<=r.length[r.length.length-1]:a.length<=16):void 0},g=function(t){var e,n,r;return e=$(t.currentTarget),n=String.fromCharCode(t.which),/^\d+$/.test(n)&&!s(e)?(r=e.val()+n,r=r.replace(/\D/g,""),r.length>6?!1:void 0):void 0},m=function(t){var e,n,r;return e=$(t.currentTarget),n=String.fromCharCode(t.which),/^\d+$/.test(n)&&!s(e)?(r=e.val()+n,r.length<=4):void 0},C=function(t){var e,r,o,a,i;return e=$(t.currentTarget),i=e.val(),a=$.payment.cardType(i)||"unknown",e.hasClass(a)?void 0:(r=function(){var t,e,r;for(r=[],t=0,e=n.length;e>t;t++)o=n[t],r.push(o.type);return r}(),e.removeClass("unknown"),e.removeClass(r.join(" ")),e.addClass(a),e.toggleClass("identified","unknown"!==a),e.trigger("payment.cardType",a))},$.payment.fn.formatCardCVC=function(){return this.on("keypress",w),this.on("keypress",m),this.on("paste",h),this.on("change",h),this.on("input",h),this},$.payment.fn.formatCardExpiry=function(){return this.on("keypress",w),this.on("keypress",g),this.on("keypress",u),this.on("keypress",l),this.on("keypress",c),this.on("keydown",a),this.on("change",f),this.on("input",f),this},$.payment.fn.formatCardNumber=function(){return this.on("keypress",w),this.on("keypress",y),this.on("keypress",i),this.on("keydown",o),this.on("keyup",C),this.on("paste",d),this.on("change",d),this.on("input",d),this.on("input",C),this},$.payment.fn.restrictNumeric=function(){return this.on("keypress",w),this.on("paste",v),this.on("change",v),this.on("input",v),this},$.payment.fn.cardExpiryVal=function(){return $.payment.cardExpiryVal($(this).val())},$.payment.cardExpiryVal=function(t){var e,n,r,o;return t=t.replace(/\s/g,""),o=t.split("/",2),e=o[0],r=o[1],2===(null!=r?r.length:void 0)&&/^\d+$/.test(r)&&(n=(new Date).getFullYear(),n=n.toString().slice(0,2),r=n+r),e=parseInt(e,10),r=parseInt(r,10),{month:e,year:r}},$.payment.validateCardNumber=function(e){var n,r;return e=(e+"").replace(/\s+|-/g,""),/^\d+$/.test(e)?(n=t(e),n?(r=e.length,b.call(n.length,r)>=0&&(n.luhn===!1||p(e))):!1):!1},$.payment.validateCardExpiry=function(t,e){var n,r,o;return"object"==typeof t&&"month"in t&&(o=t,t=o.month,e=o.year),t&&e?(t=$.trim(t),e=$.trim(e),/^\d+$/.test(t)&&/^\d+$/.test(e)&&t>=1&&12>=t?(2===e.length&&(e=70>e?"20"+e:"19"+e),4!==e.length?!1:(r=new Date(e,t),n=new Date,r.setMonth(r.getMonth()-1),r.setMonth(r.getMonth()+1,1),r>n)):!1):!1},$.payment.validateCardCVC=function(t,n){var r,o;return t=$.trim(t),/^\d+$/.test(t)?(r=e(n),null!=r?(o=t.length,b.call(r.cvcLength,o)>=0):t.length>=3&&t.length<=4):!1},$.payment.cardType=function(e){var n;return e?(null!=(n=t(e))?n.type:void 0)||null:null},$.payment.formatCardNumber=function(e){var n,r,o,a;return e=e.replace(/\D/g,""),(n=t(e))?(o=n.length[n.length.length-1],e=e.slice(0,o),n.format.global?null!=(a=e.match(n.format))?a.join(" "):void 0:(r=n.format.exec(e),null!=r?(r.shift(),r=$.grep(r,function(t){return t}),r.join(" ")):void 0)):e},$.payment.formatExpiry=function(t){var e,n,r,o;return(n=t.match(/^\D*(\d{1,2})(\D+)?(\d{1,4})?/))?(e=n[1]||"",r=n[2]||"",o=n[3]||"",o.length>0?r=" / ":" /"===r?(e=e.substring(0,1),r=""):2===e.length||r.length>0?r=" / ":1===e.length&&"0"!==e&&"1"!==e&&(e="0"+e,r=" / "),e+r+o):""}}).call(this)},{}],2:[function(t,e,n){function r(t){var e=this,t=t||{};i.publishableKey=e.stripe_key=t.key,e.form=t.form,e.cc_number=o.observable(null),e.cc_expiry=o.observable(null),e.cc_cvv=o.observable(null),e.cc_error_number=o.observable(null),e.cc_error_expiry=o.observable(null),e.cc_error_cvv=o.observable(null),e.initialize_form(),e.error=o.observable(null),e.process_form=function(){var t=a.payment.cardExpiryVal(e.cc_expiry()),n={number:e.cc_number(),exp_month:t.month,exp_year:t.year,cvc:e.cc_cvv()};return e.error(null),e.cc_error_number(null),e.cc_error_expiry(null),e.cc_error_cvv(null),a.payment.validateCardNumber(n.number)?a.payment.validateCardExpiry(n.exp_month,n.exp_year)?a.payment.validateCardCVC(n.cvc)?void i.createToken(n,function(t,n){if(200===t){var r=e.form.find("#id_last_4_digits"),o=e.form.find("#id_stripe_id,#id_stripe_token");r.val(n.card.last4),o.val(n.id),e.form.submit()}else e.error(n.error.message)}):(e.cc_error_cvv("Invalid security code"),!1):(e.cc_error_expiry("Invalid expiration date"),!1):(e.cc_error_number("Invalid card number"),console.log(n),!1)}}var o=t("knockout"),a=(t("./../../../../../bower_components/jquery.payment/lib/jquery.payment.js"),null),i=null;a="undefined"==typeof window?t("jquery"):window.$,"undefined"!=typeof window&&"undefined"!=typeof window.Stripe&&(i=window.Stripe||{}),r.prototype.initialize_form=function(){var t=a("input#cc-number"),e=a("input#cc-cvv"),n=a("input#cc-expiry");t.payment("formatCardNumber"),n.payment("formatCardExpiry"),e.payment("formatCardCVC")},r.init=function(t,e){var n=new GoldView(t),e=e||a("#payment-form")[0];return o.applyBindings(n,e),n},e.exports.PaymentView=r,"undefined"!=typeof window&&(window.payment=e.exports)},{"./../../../../../bower_components/jquery.payment/lib/jquery.payment.js":1,jquery:"jquery",knockout:"knockout"}],3:[function(t,e,n){function r(t){var e=this,t=t||{};a.utils.extend(e,new o.PaymentView(t))}var o=t("../../../../core/static-src/core/js/payment"),a=t("knockout");r.init=function(t,e){var n=new r(t),e=e||$("#payment-form")[0];return a.applyBindings(n,e),n},e.exports.GoldView=r,"undefined"!=typeof window&&(window.payment=e.exports)},{"../../../../core/static-src/core/js/payment":2,knockout:"knockout"}]},{},[3]);
\ No newline at end of file
diff --git a/readthedocs/restapi/views/footer_views.py b/readthedocs/restapi/views/footer_views.py
index ef8af615252..3ded9147c0d 100644
--- a/readthedocs/restapi/views/footer_views.py
+++ b/readthedocs/restapi/views/footer_views.py
@@ -7,9 +7,39 @@
 from rest_framework.renderers import JSONPRenderer, JSONRenderer, BrowsableAPIRenderer
 from rest_framework.response import Response
 
+from readthedocs.builds.constants import LATEST
 from readthedocs.builds.models import Version
-from readthedocs.projects.models import Project
 from readthedocs.donate.models import SupporterPromo
+from readthedocs.projects.models import Project
+from readthedocs.projects.version_handling import highest_version
+from readthedocs.projects.version_handling import parse_version_failsafe
+
+
+def get_version_compare_data(project, base_version=None):
+    highest_version_obj, highest_version_comparable = highest_version(
+        project.versions.filter(active=True))
+    ret_val = {
+        'project': unicode(highest_version_obj),
+        'version': unicode(highest_version_comparable),
+        'is_highest': True,
+    }
+    if highest_version_obj:
+        ret_val['url'] = highest_version_obj.get_absolute_url()
+        ret_val['slug'] = highest_version_obj.slug,
+    if base_version and base_version.slug != LATEST:
+        try:
+            base_version_comparable = parse_version_failsafe(
+                base_version.verbose_name)
+            if base_version_comparable:
+                # This is only place where is_highest can get set. All error
+                # cases will be set to True, for non- standard versions.
+                ret_val['is_highest'] = (
+                    base_version_comparable >= highest_version_comparable)
+            else:
+                ret_val['is_highest'] = True
+        except (Version.DoesNotExist, TypeError):
+            ret_val['is_highest'] = True
+    return ret_val
 
 
 @decorators.api_view(['GET'])
@@ -64,6 +94,8 @@ def footer_html(request):
     if not promo_obj:
         show_promo = False
 
+    version_compare_data = get_version_compare_data(project, version)
+
     context = Context({
         'project': project,
         'path': path,
@@ -88,6 +120,7 @@ def footer_html(request):
     resp_data = {
         'html': html,
         'version_active': version.active,
+        'version_compare': version_compare_data,
         'version_supported': version.supported,
         'promo': show_promo,
     }
diff --git a/readthedocs/rtd_tests/tests/test_api_version_compare.py b/readthedocs/rtd_tests/tests/test_api_version_compare.py
new file mode 100644
index 00000000000..509cbcc764c
--- /dev/null
+++ b/readthedocs/rtd_tests/tests/test_api_version_compare.py
@@ -0,0 +1,33 @@
+from django.test import TestCase
+
+from readthedocs.builds.constants import LATEST
+from readthedocs.projects.models import Project
+from readthedocs.restapi.views.footer_views import get_version_compare_data
+
+
+class VersionCompareTests(TestCase):
+    fixtures = ['eric.json', 'test_data.json']
+
+    def test_not_highest(self):
+        project = Project.objects.get(slug='read-the-docs')
+        version = project.versions.get(slug='0.2.1')
+
+        data = get_version_compare_data(project, version)
+        self.assertEqual(data['is_highest'], False)
+
+    def test_latest_version_highest(self):
+        project = Project.objects.get(slug='read-the-docs')
+
+        data = get_version_compare_data(project)
+        self.assertEqual(data['is_highest'], True)
+
+        version = project.versions.get(slug=LATEST)
+        data = get_version_compare_data(project, version)
+        self.assertEqual(data['is_highest'], True)
+
+    def test_real_highest(self):
+        project = Project.objects.get(slug='read-the-docs')
+        version = project.versions.get(slug='0.2.2')
+
+        data = get_version_compare_data(project, version)
+        self.assertEqual(data['is_highest'], True)
diff --git a/readthedocs/rtd_tests/tests/test_footer.py b/readthedocs/rtd_tests/tests/test_footer.py
index df8bc3c2e69..7b78530bcf0 100644
--- a/readthedocs/rtd_tests/tests/test_footer.py
+++ b/readthedocs/rtd_tests/tests/test_footer.py
@@ -1,4 +1,5 @@
 import json
+import mock
 
 from django.test import TestCase
 
@@ -18,6 +19,7 @@ def test_footer(self):
         r = self.client.get('/api/v2/footer_html/?project=pip&version=latest&page=index', {})
         resp = json.loads(r.content)
         self.assertEqual(resp['version_active'], True)
+        self.assertEqual(resp['version_compare']['is_highest'], True)
         self.assertEqual(resp['version_supported'], True)
         self.assertEqual(r.context['main_project'], self.pip)
         self.assertEqual(r.status_code, 200)
@@ -29,6 +31,19 @@ def test_footer(self):
         self.assertEqual(resp['version_active'], False)
         self.assertEqual(r.status_code, 200)
 
+    def test_footer_uses_version_compare(self):
+        version_compare = 'readthedocs.restapi.views.footer_views.get_version_compare_data'
+        with mock.patch(version_compare) as get_version_compare_data:
+            get_version_compare_data.return_value = {
+                'MOCKED': True
+            }
+
+            r = self.client.get('/api/v2/footer_html/?project=pip&version=latest&page=index', {})
+            self.assertEqual(r.status_code, 200)
+
+            resp = json.loads(r.content)
+            self.assertEqual(resp['version_compare'], {'MOCKED': True})
+
     def test_pdf_build_mentioned_in_footer(self):
         with fake_paths_by_regex('\.pdf$'):
             response = self.client.get(