"http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/accessibility/Accessibility.html#active">ActionScript 3.0 Language and Components Reference: Accessibility.active property</a>
								       </li>
            <li>
									         <a href="https://www.paciellogroup.com/blog/2008/04/developer-beware-using-flash-to-detect-screen-readers/">Developer Beware: Using Flash to Detect Screen Readers</a>
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