gistfile1.diff

diff --git a/cloud-carousel.1.0.5.js b/cloud-carousel.1.0.5.js
index b6fc6a9..2e7bdf6 100644
--- a/cloud-carousel.1.0.5.js
+++ b/cloud-carousel.1.0.5.js
@@ -147,19 +147,22 @@
                                clearTimeout(event.data.showFrontTextTimer);                    
                                $(options.altBox).html( ($(event.target).attr('alt') ));
                                $(options.titleBox).html( ($(event.target).attr('title') ));                                                    
-                               if ( options.bringToFront && event.type == 'click' )                            
-                               {
-                               
-                                       var     idx = $(event.target).data('itemIndex');        
-                                       var     frontIndex = event.data.frontIndex;
-                                       //var   diff = idx - frontIndex;                    
-                    var        diff = (idx - frontIndex) % images.length;
-                    if (Math.abs(diff) > images.length / 2) {
-                        diff += (diff > 0 ? -images.length : images.length);
-                    }
-                    
-                                       event.data.rotate(-diff);
+                       }
+                       if ( options.bringToFront && event.type == 'click' )
+                       {
+
+                               var     idx = $(event.target).data('itemIndex');
+                               if (idx == undefined) {
+                                       return;
+                               }
+                               var     frontIndex = event.data.frontIndex;
+                               //var   diff = idx - frontIndex;
+                               var        diff = (idx - frontIndex) % images.length;
+                               if (Math.abs(diff) > images.length / 2) {
+                                       diff += (diff > 0 ? -images.length : images.length);
                                }
+
+                               event.data.rotate(-diff);
                        }
                });
                // If we have moved out of a carousel item (or the container itself),