diff --git a/ajax.php b/ajax.php
new file mode 100644
--- /dev/null
+++ b/ajax.php
@@ -0,0 +1,102 @@
+<?php
+/*
+ * Copyright 2011 Nathan Phillip Brink <ohnobinki@ohnopublishing.net>
+ *
+ * This file is a part of slate_permutate.
+ *
+ * slate_permutate is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * slate_permutate is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with slate_permutate.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * \file
+ *   This file is an endpoint for generic AJAX requests (as opposed to
+ *   autocompletion of course names).
+ */
+
+require_once('inc/school.inc');
+require_once('inc/class.page.php');
+require_once('inc/class.course.inc');
+
+page::session_start();
+
+/* should the following block of code be moved into a proposed Page::json()? */
+if (isset($_REQUEST['txt'])) {
+  header('Content-Type: text/plain; encoding=utf-8');
+}
+else {
+  header('Content-Type: application/json; encoding=utf-8');
+}
+
+/**
+ * \brief
+ *   Wrap an error message up in JSON and send it.
+ *
+ * \param $message
+ *   A valid XHTML fragment which will be wrapped in <div class="error" />
+ */
+function slate_permutate_json_error($message)
+{
+  echo json_encode(array('success' => FALSE, 'message' => '<div class="error">' . $message . '</div>'));
+  exit;
+}
+
+/**
+ * \brief
+ *   Send a successful JSON response.
+ *
+ * \param $data
+ *   A PHP array to be encoded with json_encode() and sent as
+ *   obj.data.
+ */
+function slate_permutate_json_success(array $data = array())
+{
+  echo json_encode(array('success' => TRUE, 'data' => $data));
+  exit;
+}
+
+if (isset($_REQUEST['school_registration_html']))
+  {
+    if (!empty($_REQUEST['school']))
+      $school = school_load($_REQUEST['school']);
+    if (empty($school))
+      {
+	$school = school_load_guess();
+	if (empty($school))
+	  slate_permutate_json_error('Unable to load any school.');
+      }
+
+    $page = new Page('', array(), FALSE);
+
+    $courses = array();
+    if (!empty($_REQUEST['courses']) && is_array($_REQUEST['courses']))
+      {
+	/*
+	 * The below course deserialization blob should be moved into
+	 * the Course object.
+	 */
+	foreach ($_REQUEST['courses'] as $course_json)
+	  {
+	    $course = Course::from_json_array($course_json);
+	    if (!empty($course))
+	      $courses[] = $course;
+	  }
+      }
+
+    $html = school_registration_html($page, $school, $courses);
+    if (empty($html))
+      slate_permutate_json_error('School\'s registration information producer returned no data.');
+    slate_permutate_json_success(array('html' => $html));
+  }
+
+slate_permutate_json_error('Unrecognized command.');