Mega Code Archive
Use a class selector to apply effects
<![CDATA[
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Style>
.textAreaStyle{
mouseDownEffect: WipeLeft;
}
</mx:Style>
<mx:WipeLeft id="slowWipe" duration="5000" />
<mx:TextArea id="myTA" styleName="textAreaStyle" />
</mx:Application>
]]>