 			// of the underlying popUp
 			underneathPopUpData = popupInfo[index - 1];
 			
-			underneathPopUpData.owner.accessibilityProperties.silent = false;
+			if (underneathPopUpData.owner.accessibilityProperties)
+				underneathPopUpData.owner.accessibilityProperties.silent = false;
 			
 			// All the nested popUp's AccessibilityProperties 
 			// changes should be handled by a single 

				// This hides top-level document content from assistive technology.	
				sbRoot.document.accessibilityProperties.silent = true;
				
				Accessibility.updateProperties();
			}
			return true;
		}

					sbRoot.document.accessibilityProperties.silent = false;
				}
				
				try {
					Accessibility.updateProperties();
				}
				catch(e:Error) {
					// Flash Player issue on windows causes hasAccessibility and active to be true when accessibility is turned off 
				}
			}
			return true;
		}
