点击a旋钮屏蔽或者变灰b按钮

点击a按钮屏蔽或者变灰b按钮
//屏蔽
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical">
<mx:Button id="a"
label="Button"
height="140"
click="menuChange();" />
<mx:Button id="b"
label="Button1"
height="163"/>
      <mx:Script>
        <![CDATA[
        private function menuChange():void
        {
              b.visible=false;
        }
        ]]>
      </mx:Script>

</mx:Application>
//变灰
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
backgroundColor="#FFFFFF">
<mx:Button id="a"
label="Button"
height="140"
click="menuChange();" />
<mx:Button id="b"
label="Button1"
height="163"/>
      <mx:Script>
        <![CDATA[
        private function menuChange():void
        {
              b.enabled=false;
        }
        ]]>
      </mx:Script>

</mx:Application>