diff -r 12f4f2509a38 -r 6718c03f8938 web/data/jquery-treeview/jquery.treeview.async.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/data/jquery-treeview/jquery.treeview.async.js	Thu Oct 23 11:42:20 2014 +0200
@@ -0,0 +1,108 @@
+/*
+ * Async Treeview 0.1 - Lazy-loading extension for Treeview
+ *
+ * http://bassistance.de/jquery-plugins/jquery-plugin-treeview/
+ *
+ * Copyright 2010 Jörn Zaefferer
+ * Released under the MIT license:
+ *   http://www.opensource.org/licenses/mit-license.php
+ */
+
+;(function($) {
+
+function load(settings, root, child, container) {
+	function createNode(parent) {
+		var current = $("<li/>").attr("id", this.id || "").html("<span>" + this.text + "</span>").appendTo(parent);
+		if (this.classes) {
+			current.children("span").addClass(this.classes);
+		}
+		if (this.expanded) {
+			current.addClass("open");
+		}
+		if (this.hasChildren || this.children && this.children.length) {
+			var branch = $("<ul/>").appendTo(current);
+			if (this.hasChildren) {
+				current.addClass("hasChildren");
+				createNode.call({
+					classes: "placeholder",
+					text: "&nbsp;",
+					children:[]
+				}, branch);
+			}
+			if (this.children && this.children.length) {
+				$.each(this.children, createNode, [branch])
+			}
+		}
+	}
+	$.ajax($.extend(true, {
+		url: settings.url,
+		dataType: "json",
+		data: {
+			root: root
+		},
+		success: function(response) {
+			child.empty();
+			$.each(response, createNode, [child]);
+	        $(container).treeview({add: child});
+	    }
+	}, settings.ajax));
+	/*
+	$.getJSON(settings.url, {root: root}, function(response) {
+		function createNode(parent) {
+			var current = $("<li/>").attr("id", this.id || "").html("<span>" + this.text + "</span>").appendTo(parent);
+			if (this.classes) {
+				current.children("span").addClass(this.classes);
+			}
+			if (this.expanded) {
+				current.addClass("open");
+			}
+			if (this.hasChildren || this.children && this.children.length) {
+				var branch = $("<ul/>").appendTo(current);
+				if (this.hasChildren) {
+					current.addClass("hasChildren");
+					createNode.call({
+						classes: "placeholder",
+						text: "&nbsp;",
+						children:[]
+					}, branch);
+				}
+				if (this.children && this.children.length) {
+					$.each(this.children, createNode, [branch])
+				}
+			}
+		}
+		child.empty();
+		$.each(response, createNode, [child]);
+        $(container).treeview({add: child});
+    });
+    */
+}
+
+var proxied = $.fn.treeview;
+$.fn.treeview = function(settings) {
+	if (!settings.url) {
+		return proxied.apply(this, arguments);
+	}
+	if (!settings.root) {
+		settings.root = "source";
+	}
+	var container = this;
+	if (!container.children().size())
+		load(settings, settings.root, this, container);
+	var userToggle = settings.toggle;
+	return proxied.call(this, $.extend({}, settings, {
+		collapsed: true,
+		toggle: function() {
+			var $this = $(this);
+			if ($this.hasClass("hasChildren")) {
+				var childList = $this.removeClass("hasChildren").find("ul");
+				load(settings, this.id, childList, container);
+			}
+			if (userToggle) {
+				userToggle.apply(this, arguments);
+			}
+		}
+	}));
+};
+
+})(jQuery);