Introduced simple datepicker
diff --git a/dev/demo/datepickerdemo.js b/dev/demo/datepickerdemo.js
new file mode 100644
index 0000000..ce0913e
--- /dev/null
+++ b/dev/demo/datepickerdemo.js
@@ -0,0 +1,15 @@
+requirejs.config({
+  baseUrl: '../js/src',
+  paths : {
+    'lib': '../lib'
+  }
+});
+
+require(['datepicker', 'lib/domReady'], function (dpClass, domReady) {
+  domReady(function () {
+    var dp = dpClass.create();
+    document.getElementById('dp').appendChild(
+      dp.select(2015,4,12).show(2015,4)
+    );
+  });
+});