给一个button或text平添链接

给一个button或text添加链接
直接上代码，
Button：
<s:Button x="237" y="7" label="按钮" buttonMode="true"  click="linkURL()"/>
Text：
<mx:Text text="aa" x="140" y="10" id="linkUrl" fontSize="13" buttonMode="true"/>

private function linkURL():void {var request:URLRequest = new URLRequest("http://www.renrenwei.com");navigateToURL(request,"_blank");}private function initApp():void{   var str:String = "<a target='_blank' href='http://www.renrenwei.com'>aa</a>";   linkUrl.htmlText = str;  }