view picture timer actionscript3,0(FLASH BUILDER) - actionscript

Question

I want to view each picture after a few seconds.
function display is rolling in program.
please add necessary　code.
I could not understand timer function of actionscript.
function display(q:int):void{
if(q ==0)
{
ue.visible= true;
migi.visible= false;
shita.visible= false;
hidari.visible= false;
}
else if(q ==1)
{
ue.visible= false;
migi.visible= true;
shita.visible= false;
hidari.visible= false;
}
else if(q ==2)
{
ue.visible= false;
migi.visible= false;
shita.visible= true;
hidari.visible= false;
}
else
{
ue.visible= false;
migi.visible= false;
shita.visible= false;
hidari.visible= true;
}
}

Answer 1

Give the following a try. I've tried to include comments to explain what I'm doing:
import flash.utils.Timer;
import flash.events.TimerEvent;
// Put all the clips in an array to manage
var pictures:Array = [this.ue, this.migi, this.shita, this.hidari];
// Store the current image index
var currentPicture = 0;
// Delay in milliseconds to wait between each image
var delay = 1000;
// We can reuse the same timer instance throughout cycle
var timer:Timer = new Timer(this.delay, 1);
timer.addEventListener(TimerEvent.TIMER_COMPLETE, timerCompleteHandler);
// Hide all the pictures in the array
function hidePictures():void
{
for (var i:int = 0; i < this.pictures.length; i ++)
{
MovieClip(this.pictures[i]).visible = false;
}
}
function showPicture():void
{
// Show the current image
MovieClip(this.pictures[this.currentPicture]).visible = true;
// Now start the pause on the current image
timer.start();
}
function timerCompleteHandler(event:TimerEvent):void
{
// Hide the old image
MovieClip(this.pictures[this.currentPicture]).visible = false;
// Increment current picture index unless we're at the end in which case loop
this.currentPicture = (this.currentPicture < this.pictures.length - 1)
? this.currentPicture + 1 : 0;
// Show the next picture
showPicture();
}
hidePictures();
showPicture();