Drawing Dynamic object in flash cs3:

Code:

import flash.display.Sprite;
import flash.events.Event;
var spr:Sprite=new Sprite();
spr.graphics.beginFill(0xFF00FF,1);
spr.graphics.drawRect(100,100,200,200);
spr.graphics.endFill()
spr.name="sara";
spr.addEventListener(MouseEvent.CLICK,sarafun);
addChild(spr)
function sarafun(event:MouseEvent){
trace(event.target.name);
}


Explanation:

Sprite:
Derived from DisplayObject Class..
Lightweight..
Similar to movieclip but contains single frame or no timeline..

var spr:Sprite=new Sprite();

this is to create dynamic sprite..

Note:Similar to create empty movleclip


spr.graphics.beginFill(0xFF00FF,1);
spr.graphics.drawRect(100,100,200,200);
spr.graphics.endFill()

here how to create drawing objects...
Many ways like drawCircle(),drawEllipse()..,

spr.addEventListener(MouseEvent.CLICK,sarafun);
here we are adding listener...to object...more like

Note:
onpress=onrelease=MouseEvent.CLICK
onmousedown=MouseEvent.MOUSE_DOWN
onmouseup=MouseEvent.MOUSE_UP
soon..

addChild(spr);
here we are adding sprite to the display list...

Note:there is no need to specify depth since it manages itself