flash课件怎么实现点击跳转到不同的题目?

var numAry:Array=[2,3,4,5,6,7,8];
var index:int=0;
var idAry:Array=new Array();
mc.gotoAndS(1);
idAry=GetRandomAry(numAry);
btn.addEventListener(MouseEvent.CLICK,GetNextFrame);
function GetNextFrame(e:MouseEvent):void
{
if(index<idAry.length)
{
mc.gotoAndS(idAry[index]);
index++;
}
else
{
mc.gotoAndS(mc.totalFrames);
}
}
function GetRandomAry(ary:Array):Array
{
var tempAry:Array=new Array();
var tempAry2:Array=ary;
while(tempAry2.length>0)
{
var temp:int=int(Math.random()10000)%tempAry2.length;
tempAry.push(tempAry2[temp]);
tempAry2.splice(temp,1);
}
return tempAry;
}