Clicking fast mess

Hi

Let’s say i have 3 buttons that calls different function every function calls a tween movement, but if i click real fast all the buttons all messes real bad.

Anyone could advice me, how can i avoid that?

thanks in advance

btn1.onRelease=mov1
btn2.onRelease=mov2
btn2.onRelease=mov3

function mov1():void{
new Tween (frame, "_height", Back.easeOut, 50, 200, .5, true)

}

function mov2():void{
new Tween (frame, "_x", Back.easeOut, 150, 400, .5, true)

}

function mov4():void{
new Tween (frame, "_width", Back.easeOut, 150, 600, .5, true)

}