diff --git a/modules/overlay/overlay-parent.js b/modules/overlay/overlay-parent.js
index 4134759..67c4d42 100644
--- a/modules/overlay/overlay-parent.js
+++ b/modules/overlay/overlay-parent.js
@@ -76,6 +76,7 @@ Drupal.overlay.open = function (url) {
   if (this.isOpen || this.isOpening) {
     return this.load(url);
   }
+  $(document).trigger('drupalOverlayBeforeOpen');
   this.isOpening = true;
   // Store the original document title.
   this.originalTitle = document.title;
@@ -204,6 +205,8 @@ Drupal.overlay.close = function () {
     this.destroy();
     this.isClosing = false;
   }
+  
+  $(document).trigger('drupalOverlayCloseDone');
   return true;
 };