button to add and remove a movieclip

I'm trying to make a button that will add and remove a movieclip. For some reason it wont remove the movieclip when it's clicked on and I can't seem to figure out what I did wrong. Below is the code I'm using. Even if I remove the else part from the function it wont remove the movieclip when the button is clicked on.

var instructions = new instructionsFirewall();

var instructionsOut:Boolean=false;

instructionButton.addEventListener(MouseEvent.CLICK, instructionsClick);

addChild(instructions);

instructions.x = 48;

instructions.y = 99;

function instructionsClick(MouseEvent):void {

          if (instructionsOut=false){

                    removeChild(instructions)

                    instructionsOut=true

          }

          else{

                    addChild(instructions);

                    instructions.x = 48;

                    instructions.y = 99;

                    instructionsOut=false

          }

}