diff --git a/.gitmodules b/.gitmodules
index 2a37d1c..556bf7a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,3 +49,6 @@
 [submodule "lib/phpdoc_md"]
 	path = lib/phpdoc_md
 	url = ../lib_phpdoc_md.git
+[submodule "lib/jstree"]
+	path = lib/jstree
+	url = ../lib_jstree.git
diff --git a/lib/autoload.inc b/lib/autoload.inc
index 7cb7e27..0956abb 100644
--- a/lib/autoload.inc
+++ b/lib/autoload.inc
@@ -15,4 +15,5 @@ require_once dirname(__FILE__).'/jqbootstrapvalidation/autoload.inc';
 require_once dirname(__FILE__).'/scssphp/autoload.inc';
 require_once dirname(__FILE__).'/minify/autoload.inc';
 require_once dirname(__FILE__).'/phpdocumentor/autoload.inc';
-require_once dirname(__FILE__).'/phpdoc_md/autoload.inc';
\ No newline at end of file
+require_once dirname(__FILE__).'/phpdoc_md/autoload.inc';
+require_once dirname(__FILE__).'/jstree/autoload.inc';
\ No newline at end of file
diff --git a/lib/jstree b/lib/jstree
new file mode 160000
index 0000000..b632e12
--- /dev/null
+++ b/lib/jstree
@@ -0,0 +1 @@
+Subproject commit b632e12b1f2ac67ab2a6a3cb09f93524f27348bd