How make targetting Btn for MC inside Array as3

1

[COLOR=#000000][FONT=verdana]i have 3 MC in array [red, yellow, green] and i wanna connect [/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]1.Btn accelerator for green[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]2.Btn Brake for red[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]3.Btn clutch for yellow[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]This my code :[/FONT][/COLOR]


[COLOR=#000000][FONT=verdana]import flash.utils.Timer;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]import flash.events.TimerEvent;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]import flash.display.MovieClip;[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]var red:Red = new Red();[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]var yellow:Yellow = new Yellow();[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]var green:Green = new Green();[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]red.x = 116.5;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]yellow.x = 176.5;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]green.x = 236.5;[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]red.y = green.y = yellow.y = 43.5;[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]var array:Array = [red, yellow, green];[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]var prev:MovieClip;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]var curr:MovieClip;[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]var timer:Timer = new Timer(500, 20);[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]timer.addEventListener(TimerEvent.TIMER, trafficControl);[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]timer.start();[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]var count:Number = 0;[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]function trafficControl(event:TimerEvent):void[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]{[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]if(prev)[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]{[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]removeChild(prev);[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]}[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]curr = array[count] as MovieClip;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]addChild(curr);[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]count = Math.floor( array.length * Math.random() );[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]prev = curr;[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]}[/FONT][/COLOR]

[COLOR=#000000][FONT=verdana]i just need connet my Btn with my MC,[/FONT][/COLOR]
[COLOR=#000000][FONT=verdana]help please…[/FONT][/COLOR]