TextEvent

 import flash.text.TextField;
 import flash.events.TextEvent;   
 
 var tf:TextField = new TextField();
 tf.htmlText = "<a href='event:myEvent'>Click Me.</a>";
 tf.addEventListener("link", clickHandler);
 addChild(tf);
 
 function clickHandler(e:TextEvent):void {
  trace(e.type); // link
  trace(e.text); // myEvent
 }