diff --git a/src/__celerity_resource_map__.php b/src/__celerity_resource_map__.php
index b533d8d712..04685c0873 100644
--- a/src/__celerity_resource_map__.php
+++ b/src/__celerity_resource_map__.php
@@ -72,7 +72,7 @@ celerity_register_resource_map(array(
   ),
   'aphront-form-view-css' =>
   array(
-    'uri' => '/res/38bc1599/rsrc/css/aphront/form-view.css',
+    'uri' => '/res/aec38c95/rsrc/css/aphront/form-view.css',
     'type' => 'css',
     'requires' =>
     array(
@@ -699,6 +699,18 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/core/behavior-error-log.js',
   ),
+  'javelin-behavior-fancy-datepicker' =>
+  array(
+    'uri' => '/res/b2d89e4c/rsrc/js/application/core/behavior-fancy-datepicker.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-behavior',
+      1 => 'javelin-util',
+      2 => 'javelin-dom',
+    ),
+    'disk' => '/rsrc/js/application/core/behavior-fancy-datepicker.js',
+  ),
   'javelin-behavior-files-drag-and-drop' =>
   array(
     'uri' => '/res/3a7a2a8a/rsrc/js/application/core/behavior-files-drag-and-drop.js',
@@ -2022,7 +2034,7 @@ celerity_register_resource_map(array(
 ), array(
   'packages' =>
   array(
-    '943d4357' =>
+    '803864a4' =>
     array(
       'name' => 'core.pkg.css',
       'symbols' =>
@@ -2047,7 +2059,7 @@ celerity_register_resource_map(array(
         17 => 'aphront-pager-view-css',
         18 => 'phabricator-transaction-view-css',
       ),
-      'uri' => '/res/pkg/943d4357/core.pkg.css',
+      'uri' => '/res/pkg/803864a4/core.pkg.css',
       'type' => 'css',
     ),
     '21d01ed8' =>
@@ -2194,17 +2206,17 @@ celerity_register_resource_map(array(
   'reverse' =>
   array(
     'aphront-attached-file-view-css' => 'f45e0b15',
-    'aphront-crumbs-view-css' => '943d4357',
-    'aphront-dialog-view-css' => '943d4357',
-    'aphront-form-view-css' => '943d4357',
+    'aphront-crumbs-view-css' => '803864a4',
+    'aphront-dialog-view-css' => '803864a4',
+    'aphront-form-view-css' => '803864a4',
     'aphront-headsup-action-list-view-css' => '18be02e0',
-    'aphront-list-filter-view-css' => '943d4357',
-    'aphront-pager-view-css' => '943d4357',
-    'aphront-panel-view-css' => '943d4357',
-    'aphront-side-nav-view-css' => '943d4357',
-    'aphront-table-view-css' => '943d4357',
-    'aphront-tokenizer-control-css' => '943d4357',
-    'aphront-typeahead-control-css' => '943d4357',
+    'aphront-list-filter-view-css' => '803864a4',
+    'aphront-pager-view-css' => '803864a4',
+    'aphront-panel-view-css' => '803864a4',
+    'aphront-side-nav-view-css' => '803864a4',
+    'aphront-table-view-css' => '803864a4',
+    'aphront-tokenizer-control-css' => '803864a4',
+    'aphront-typeahead-control-css' => '803864a4',
     'differential-changeset-view-css' => '18be02e0',
     'differential-core-view-css' => '18be02e0',
     'differential-inline-comment-editor' => 'b2139675',
@@ -2262,23 +2274,23 @@ celerity_register_resource_map(array(
     'maniphest-task-detail-css' => 'f45e0b15',
     'maniphest-task-summary-css' => 'f45e0b15',
     'maniphest-transaction-detail-css' => 'f45e0b15',
-    'phabricator-app-buttons-css' => '943d4357',
+    'phabricator-app-buttons-css' => '803864a4',
     'phabricator-content-source-view-css' => '18be02e0',
-    'phabricator-core-buttons-css' => '943d4357',
-    'phabricator-core-css' => '943d4357',
-    'phabricator-directory-css' => '943d4357',
+    'phabricator-core-buttons-css' => '803864a4',
+    'phabricator-core-css' => '803864a4',
+    'phabricator-directory-css' => '803864a4',
     'phabricator-drag-and-drop-file-upload' => 'b2139675',
     'phabricator-dropdown-menu' => '21d01ed8',
-    'phabricator-jump-nav' => '943d4357',
+    'phabricator-jump-nav' => '803864a4',
     'phabricator-keyboard-shortcut' => '21d01ed8',
     'phabricator-keyboard-shortcut-manager' => '21d01ed8',
     'phabricator-menu-item' => '21d01ed8',
     'phabricator-object-selector-css' => '18be02e0',
     'phabricator-paste-file-upload' => '21d01ed8',
-    'phabricator-remarkup-css' => '943d4357',
+    'phabricator-remarkup-css' => '803864a4',
     'phabricator-shaped-request' => 'b2139675',
-    'phabricator-standard-page-view' => '943d4357',
-    'phabricator-transaction-view-css' => '943d4357',
-    'syntax-highlighting-css' => '943d4357',
+    'phabricator-standard-page-view' => '803864a4',
+    'phabricator-transaction-view-css' => '803864a4',
+    'syntax-highlighting-css' => '803864a4',
   ),
 ));
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index e7f99dd42e..fb26bfa7ce 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -31,6 +31,7 @@ phutil_register_library_map(array(
     'AphrontFileResponse' => 'aphront/response/file',
     'AphrontFormCheckboxControl' => 'view/form/control/checkbox',
     'AphrontFormControl' => 'view/form/control/base',
+    'AphrontFormDateControl' => 'view/form/control/date',
     'AphrontFormDividerControl' => 'view/form/control/divider',
     'AphrontFormDragAndDropUploadControl' => 'view/form/control/draganddropupload',
     'AphrontFormFileControl' => 'view/form/control/file',
@@ -610,6 +611,7 @@ phutil_register_library_map(array(
     'PhabricatorFlagListController' => 'applications/flag/controller/list',
     'PhabricatorFlagListView' => 'applications/flag/view/list',
     'PhabricatorFlagQuery' => 'applications/flag/query/flag',
+    'PhabricatorFormExample' => 'applications/uiexample/examples/form',
     'PhabricatorGarbageCollectorDaemon' => 'infrastructure/daemon/garbagecollector',
     'PhabricatorGoodForNothingWorker' => 'infrastructure/daemon/workers/worker/goodfornothing',
     'PhabricatorHandleObjectSelectorDataView' => 'applications/phid/handle/view/selector',
@@ -976,6 +978,7 @@ phutil_register_library_map(array(
     'AphrontFileResponse' => 'AphrontResponse',
     'AphrontFormCheckboxControl' => 'AphrontFormControl',
     'AphrontFormControl' => 'AphrontView',
+    'AphrontFormDateControl' => 'AphrontFormControl',
     'AphrontFormDividerControl' => 'AphrontFormControl',
     'AphrontFormDragAndDropUploadControl' => 'AphrontFormControl',
     'AphrontFormFileControl' => 'AphrontFormControl',
@@ -1447,6 +1450,7 @@ phutil_register_library_map(array(
     'PhabricatorFlagEditController' => 'PhabricatorFlagController',
     'PhabricatorFlagListController' => 'PhabricatorFlagController',
     'PhabricatorFlagListView' => 'AphrontView',
+    'PhabricatorFormExample' => 'PhabricatorUIExample',
     'PhabricatorGarbageCollectorDaemon' => 'PhabricatorDaemon',
     'PhabricatorGoodForNothingWorker' => 'PhabricatorWorker',
     'PhabricatorHelpController' => 'PhabricatorController',
diff --git a/src/applications/uiexample/examples/form/PhabricatorFormExample.php b/src/applications/uiexample/examples/form/PhabricatorFormExample.php
new file mode 100644
index 0000000000..0cb2fdf040
--- /dev/null
+++ b/src/applications/uiexample/examples/form/PhabricatorFormExample.php
@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class PhabricatorFormExample extends PhabricatorUIExample {
+
+  public function getName() {
+    return 'Form';
+  }
+
+  public function getDescription() {
+    return 'Use <tt>AphrontFormView</tt> to render forms.';
+  }
+
+  public function renderExample() {
+    $request = $this->getRequest();
+    $user = $request->getUser();
+
+    $date = id(new AphrontFormDateControl())
+      ->setUser($user)
+      ->setName('date')
+      ->setLabel('Date');
+
+    $date->readValueFromRequest($request);
+
+    $form = id(new AphrontFormView())
+      ->setUser($user)
+      ->appendChild($date)
+      ->appendChild(
+        id(new AphrontFormSubmitControl())
+          ->setValue('Submit'));
+
+    $panel = new AphrontPanelView();
+    $panel->setHeader('Form');
+    $panel->appendChild($form);
+
+    return $panel;
+  }
+}
diff --git a/src/applications/uiexample/examples/form/__init__.php b/src/applications/uiexample/examples/form/__init__.php
new file mode 100644
index 0000000000..011652fa76
--- /dev/null
+++ b/src/applications/uiexample/examples/form/__init__.php
@@ -0,0 +1,18 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/uiexample/examples/base');
+phutil_require_module('phabricator', 'view/form/base');
+phutil_require_module('phabricator', 'view/form/control/date');
+phutil_require_module('phabricator', 'view/form/control/submit');
+phutil_require_module('phabricator', 'view/layout/panel');
+
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorFormExample.php');
diff --git a/src/view/form/control/date/AphrontFormDateControl.php b/src/view/form/control/date/AphrontFormDateControl.php
new file mode 100644
index 0000000000..e5372317ed
--- /dev/null
+++ b/src/view/form/control/date/AphrontFormDateControl.php
@@ -0,0 +1,201 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class AphrontFormDateControl extends AphrontFormControl {
+
+  private $user;
+
+  public function setUser($user) {
+    $this->user = $user;
+    return $this;
+  }
+
+  public function readValueFromRequest(AphrontRequest $request) {
+
+    $day = $request->getInt($this->getDayInputName());
+    $month = $request->getInt($this->getMonthInputName());
+    $year = $request->getInt($this->getYearInputName());
+
+    $err = $this->getError();
+
+    if ($day || $month || $year) {
+
+      // Assume invalid.
+      $err = 'Invalid';
+
+      $tz = new DateTimeZone('UTC');
+      try {
+        $date = new DateTime("{$year}-{$month}-{$day} 12:00:00 AM", $tz);
+        $value = $date->format('Y-m-d');
+        if ($value) {
+          $this->setValue($value);
+          $err = null;
+        }
+      } catch (Exception $ex) {
+        // Ignore, already handled.
+      }
+    }
+
+    $this->setError($err);
+
+    return $err;
+  }
+
+  public function getValue() {
+    if (!parent::getValue()) {
+      $this->setValue($this->formatTime(time(), 'Y-m-d'));
+    }
+    return parent::getValue();
+  }
+
+
+  protected function getCustomControlClass() {
+    return 'aphront-form-control-date';
+  }
+
+  private function getMinYear() {
+    $cur_year = $this->formatTime(
+      time(),
+      'Y');
+    $val_year = $this->getYearInputValue();
+
+    return min($cur_year, $val_year) - 3;
+  }
+
+  private function getMaxYear() {
+    $cur_year = $this->formatTime(
+      time(),
+      'Y');
+    $val_year = $this->getYearInputValue();
+
+    return max($cur_year, $val_year) + 3;
+  }
+
+  private function getDayInputValue() {
+    return (int)idx(explode('-', $this->getValue()), 2);
+  }
+
+  private function getMonthInputValue() {
+    return (int)idx(explode('-', $this->getValue()), 1);
+  }
+
+  private function getYearInputValue() {
+    return (int)idx(explode('-', $this->getValue()), 0);
+  }
+
+  private function formatTime($epoch, $fmt) {
+    return phabricator_format_local_time(
+      $epoch,
+      $this->user,
+      $fmt);
+  }
+
+  private function getDayInputName() {
+    return $this->getName().'_d';
+  }
+
+  private function getMonthInputName() {
+    return $this->getName().'_m';
+  }
+
+  private function getYearInputName() {
+    return $this->getName().'_y';
+  }
+
+  protected function renderInput() {
+    $min_year = $this->getMinYear();
+    $max_year = $this->getMaxYear();
+
+    $days = range(1, 31);
+    $days = array_combine($days, $days);
+
+    $months = array(
+      1 => 'Jan',
+      2 => 'Feb',
+      3 => 'Mar',
+      4 => 'Apr',
+      5 => 'May',
+      6 => 'Jun',
+      7 => 'Jul',
+      8 => 'Aug',
+      9 => 'Sep',
+      10 => 'Oct',
+      11 => 'Nov',
+      12 => 'Dec',
+    );
+
+    $years = range($this->getMinYear(), $this->getMaxYear());
+    $years = array_combine($years, $years);
+
+    $days_sel = AphrontFormSelectControl::renderSelectTag(
+      $this->getDayInputValue(),
+      $days,
+      array(
+        'name' => $this->getDayInputName(),
+        'sigil' => 'day-input',
+      ));
+
+    $months_sel = AphrontFormSelectControl::renderSelectTag(
+      $this->getMonthInputValue(),
+      $months,
+      array(
+        'name' => $this->getMonthInputName(),
+        'sigil' => 'month-input',
+      ));
+
+    $years_sel = AphrontFormSelectControl::renderSelectTag(
+      $this->getYearInputValue(),
+      $years,
+      array(
+        'name'  => $this->getYearInputName(),
+        'sigil' => 'year-input',
+      ));
+
+    $cal_icon = javelin_render_tag(
+      'a',
+      array(
+        'href'  => '#',
+        'class' => 'calendar-button',
+        'sigil' => 'calendar-button',
+      ),
+      '');
+
+    $id = celerity_generate_unique_node_id();
+
+    Javelin::initBehavior(
+      'fancy-datepicker',
+      array(
+        'root' => $id,
+      ));
+
+    return javelin_render_tag(
+      'div',
+      array(
+        'id' => $id,
+        'class' => 'aphront-form-date-container',
+      ),
+      self::renderSingleView(
+        array(
+          $days_sel,
+          $months_sel,
+          $years_sel,
+          $cal_icon,
+        )));
+  }
+
+}
diff --git a/src/view/form/control/date/__init__.php b/src/view/form/control/date/__init__.php
new file mode 100644
index 0000000000..b7eacce30c
--- /dev/null
+++ b/src/view/form/control/date/__init__.php
@@ -0,0 +1,19 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'infrastructure/celerity/api');
+phutil_require_module('phabricator', 'infrastructure/javelin/api');
+phutil_require_module('phabricator', 'infrastructure/javelin/markup');
+phutil_require_module('phabricator', 'view/form/control/base');
+phutil_require_module('phabricator', 'view/form/control/select');
+phutil_require_module('phabricator', 'view/utils');
+
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('AphrontFormDateControl.php');
diff --git a/src/view/form/control/select/AphrontFormSelectControl.php b/src/view/form/control/select/AphrontFormSelectControl.php
index 6162e4095b..f1b84aa0a7 100644
--- a/src/view/form/control/select/AphrontFormSelectControl.php
+++ b/src/view/form/control/select/AphrontFormSelectControl.php
@@ -60,7 +60,7 @@ final class AphrontFormSelectControl extends AphrontFormControl {
         phutil_escape_html($label));
     }
 
-    return phutil_render_tag(
+    return javelin_render_tag(
       'select',
       $attrs,
       implode("\n", $option_tags));
diff --git a/src/view/form/control/select/__init__.php b/src/view/form/control/select/__init__.php
index 2c37bdcb04..fc8348e869 100644
--- a/src/view/form/control/select/__init__.php
+++ b/src/view/form/control/select/__init__.php
@@ -6,6 +6,7 @@
 
 
 
+phutil_require_module('phabricator', 'infrastructure/javelin/markup');
 phutil_require_module('phabricator', 'view/form/control/base');
 
 phutil_require_module('phutil', 'markup');
diff --git a/webroot/rsrc/css/aphront/form-view.css b/webroot/rsrc/css/aphront/form-view.css
index 0e9e1bba53..72f7d98bf8 100644
--- a/webroot/rsrc/css/aphront/form-view.css
+++ b/webroot/rsrc/css/aphront/form-view.css
@@ -167,3 +167,123 @@ table.aphront-form-control-checkbox-layout th {
   background: #99ff99;
   border-color: #669966;
 }
+
+.calendar-button {
+  padding: 11px;
+  right: -30px;
+  top: -3px;
+
+  background: url(/rsrc/image/icon/fatcow/calendar_edit.png)
+    no-repeat center center;
+  z-index: 2;
+  position: absolute;
+  border: 1px solid transparent;
+}
+
+.aphront-form-date-container {
+  position: relative;
+  display: inline;
+}
+
+.aphront-form-date-container select{
+  margin: 2px;
+}
+
+.fancy-datepicker {
+  position: absolute;
+  top: -10px;
+  right: -8px;
+  width: 240px;
+  padding-bottom: 6em;
+}
+
+.fancy-datepicker-core {
+  padding: 1px;
+  font-size: 11px;
+  font-family: Verdana;
+  text-align: center;
+}
+
+.fancy-datepicker-core .month-table,
+.fancy-datepicker-core .day-table {
+  margin: 0 auto;
+  border-collapse: separate;
+  border-spacing: 1px;
+  width: 100%;
+}
+
+.fancy-datepicker-core .month-table {
+  margin-bottom: 6px;
+}
+
+.fancy-datepicker-core .month-table td.lrbutton {
+  width: 20%;
+}
+
+.fancy-datepicker-core .month-table td {
+  padding: 4px;
+  font-weight: bold;
+  color: #444444;
+}
+
+.fancy-datepicker-core .month-table td.lrbutton {
+  background: #e6e6e6;
+  border: 1px solid;
+  border-color: #a6a6a6 #969696 #868686 #a6a6a6;
+}
+
+.fancy-datepicker-core .day-table td {
+  overflow: hidden;
+  background: #f6f6f6;
+  vertical-align: center;
+  text-align: center;
+  border: 1px solid #d6d6d6;
+  padding: 4px 0;
+}
+
+.fancy-datepicker-core .day-table td.day-placeholder {
+  border-color: transparent;
+  background: transparent;
+}
+
+.fancy-datepicker-core .day-table td.weekend {
+  color: #666666;
+  border-color: #e6e6e6;
+}
+
+.fancy-datepicker-core .day-table td.day-name {
+  background: transparent;
+  border: 1px transparent;
+  vertical-align: bottom;
+  color: #888888;
+}
+
+.fancy-datepicker-core .day-table td.today {
+  background: #eeee99;
+  border-color: #aaaa66;
+}
+
+.fancy-datepicker-core .day-table td.datepicker-selected {
+  background: #0099ff;
+  border-color: #0066cc;
+}
+
+.fancy-datepicker-core td {
+  cursor: pointer;
+}
+
+.fancy-datepicker-core td.novalue {
+  cursor: inherit;
+}
+
+.picker-open .calendar-button,
+.fancy-datepicker-core {
+  background-color: white;
+  border: 1px solid #777777;
+
+  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.25);
+}
+
+.picker-open .calendar-button {
+  border-left: 1px solid white;
+}
diff --git a/webroot/rsrc/image/icon/fatcow/calendar_edit.png b/webroot/rsrc/image/icon/fatcow/calendar_edit.png
new file mode 100755
index 0000000000..31a2dfdf7c
Binary files /dev/null and b/webroot/rsrc/image/icon/fatcow/calendar_edit.png differ
diff --git a/webroot/rsrc/js/application/core/behavior-fancy-datepicker.js b/webroot/rsrc/js/application/core/behavior-fancy-datepicker.js
new file mode 100644
index 0000000000..000fe17f95
--- /dev/null
+++ b/webroot/rsrc/js/application/core/behavior-fancy-datepicker.js
@@ -0,0 +1,228 @@
+/**
+ * @provides javelin-behavior-fancy-datepicker
+ * @requires javelin-behavior
+ *           javelin-util
+ *           javelin-dom
+ */
+
+JX.behavior('fancy-datepicker', function(config) {
+
+  var picker;
+
+  var value_y;
+  var value_m;
+  var value_d;
+
+  var onopen = function(e) {
+    e.kill();
+
+    // If you click the calendar icon while the date picker is open, close it
+    // without writing the change.
+
+    if (picker) {
+      onclose(e);
+      return;
+    }
+
+    picker = JX.$N(
+      'div',
+      {className: 'fancy-datepicker'},
+      JX.$N('div', {className: 'fancy-datepicker-core'}));
+    root.appendChild(picker);
+
+    JX.DOM.alterClass(root, 'picker-open', true);
+
+    read_date();
+    render();
+  };
+
+  var onclose = function(e) {
+    if (!picker) {
+      return;
+    }
+
+    JX.DOM.remove(picker);
+    picker = null;
+    JX.DOM.alterClass(root, 'picker-open', false);
+    e.kill();
+  };
+
+  var get_inputs = function() {
+    return {
+      y: JX.DOM.find(root, 'select', 'year-input'),
+      m: JX.DOM.find(root, 'select', 'month-input'),
+      d: JX.DOM.find(root, 'select', 'day-input')
+    };
+  }
+
+  var read_date = function() {
+    var i = get_inputs();
+    value_y = i.y.value;
+    value_m = i.m.value;
+    value_d = i.d.value;
+  };
+
+  var write_date = function() {
+    var i = get_inputs();
+    i.y.value = value_y;
+    i.m.value = value_m;
+    i.d.value = value_d;
+  };
+
+  var render = function() {
+    JX.DOM.setContent(
+      picker.firstChild,
+      [
+        render_month(),
+        render_day(),
+      ]);
+  };
+
+  // Render a cell for the date picker.
+  var cell = function(label, value, selected, class_name) {
+
+    class_name = class_name || '';
+
+    if (selected) {
+      class_name += ' datepicker-selected';
+    }
+    if (!value) {
+      class_name += ' novalue';
+    }
+
+    return JX.$N('td', {meta: {value: value}, className: class_name}, label);
+  }
+
+
+  // Render the top bar which allows you to pick a month and year.
+  var render_month = function() {
+    var months = [
+      'January',
+      'February',
+      'March',
+      'April',
+      'May',
+      'June',
+      'July',
+      'August',
+      'September',
+      'October',
+      'November',
+      'December'];
+
+    var buttons = [
+      cell("\u25C0", 'm:-1', false, 'lrbutton'),
+      cell(months[value_m - 1] + ' ' + value_y, null),
+      cell("\u25B6", 'm:1', false, 'lrbutton')];
+
+    return JX.$N(
+      'table',
+      {className: 'month-table'},
+      JX.$N('tr', {}, buttons));
+  };
+
+
+  // Render the day-of-week and calendar views.
+  var render_day = function() {
+    var weeks = [];
+
+    // First, render the weekday names.
+    var weekdays = 'SMTWTFS';
+    var weekday_names = [];
+    for (var ii = 0; ii < weekdays.length; ii++) {
+      weekday_names.push(cell(weekdays.charAt(ii), null, false, 'day-name'));
+    }
+    weeks.push(JX.$N('tr', {}, weekday_names));
+
+
+    // Render the calendar itself. NOTE: Javascript uses 0-based month indexes
+    // while we use 1-based month indexes, so we have to adjust for that.
+    var days = [];
+    var start = new Date(value_y, value_m - 1, 1).getDay();
+    while (start--) {
+      days.push(cell('', null, false, 'day-placeholder'));
+    }
+
+    var today = new Date();
+
+    for (var ii = 1; ii <= 31; ii++) {
+      var date = new Date(value_y, value_m - 1, ii);
+      if (date.getMonth() != (value_m - 1)) {
+        // We've spilled over into the next month, so stop rendering.
+        break;
+      }
+
+      var is_today = (today.getYear() == date.getYear() &&
+                      today.getMonth() == date.getMonth() &&
+                      today.getDate() == date.getDate());
+
+      var classes = [];
+      if (is_today) {
+        classes.push('today');
+      }
+      if (date.getDay() == 0 || date.getDay() == 6) {
+        classes.push('weekend');
+      }
+
+      days.push(cell(ii, 'd:'+ii, value_d == ii, classes.join(' ')));
+    }
+
+    // Slice the days into weeks.
+    for (var ii = 0; ii < days.length; ii += 7) {
+      weeks.push(JX.$N('tr', {}, days.slice(ii, ii + 7)));
+    }
+
+    return JX.$N('table', {className: 'day-table'}, weeks);
+  };
+
+
+  var root = JX.$(config.root);
+
+  JX.DOM.listen(
+    root,
+    'click',
+    'calendar-button',
+    onopen);
+
+  JX.DOM.listen(
+    root,
+    'click',
+    'tag:td',
+    function(e) {
+      e.kill();
+
+      var data = e.getNodeData('tag:td');
+      if (!data.value) {
+        return;
+      }
+
+      var p = data.value.split(':');
+      switch (p[0]) {
+        case 'm':
+          // User clicked left or right month selection buttons.
+          value_m = value_m - 1;
+          value_m = value_m + parseInt(p[1]);
+          if (value_m >= 12) {
+            value_m -= 12;
+            value_y += 1;
+          } else if (value_m < 0) {
+            value_m += 12;
+            value_y -= 1;
+          }
+          value_m = value_m + 1;
+          break;
+        case 'd':
+          // User clicked a day.
+          value_d = parseInt(p[1]);
+          write_date();
+
+          // Wait a moment to close the selector so they can see the effect
+          // of their action.
+          setTimeout(JX.bind(null, onclose, e), 150);
+          break;
+      }
+
+      render();
+    });
+
+});