 import flash.text.TextFormatAlign;
 import flash.text.TextLineMetrics;
 import flash.utils.getQualifiedClassName;
+import flash.accessibility.Accessibility;
+import flash.accessibility.AccessibilityProperties;
 
 import mx.automation.IAutomationObject;
 import mx.binding.BindingManager;

        _updateCompletePendingFlag = value;
    }

    //--------------------------------------------------------------------------
    //
    //  Variables: Invalidation
    //

 *  <pre>
 *  &lt;mx:<i>tagname</i>
 *   <b>Properties </b>
 *    accessibilityDescription="null"
 *    accessibilityName="null"
 *    accessibilityShortcut="null"
 *    accessibilitySilent="true|false"
 *    automationName="null"
 *    cachePolicy="auto|on|off"
 *    currentState="null"
