Multiple event handlers on one object

programming flash
1

I’m new to AS3 and trying to turn a Movie Clip into a classic button - roll-over to display text, roll-off and text goes away, click and go to frame of animation. Each works on its own but when I put all 3 on the same Movie Clip (Tick1) each succeeding event listener seems to erase the previous one. Am I doing something wrong? Here is the code:

var txtField:TextField = new TextField();
Tick1.addEventListener(MouseEvent.CLICK, GoToStart);
Tick1.buttonMode = true;
Tick1.addEventListener(MouseEvent.MOUSE_OVER, MouseOverTick1);
Tick1.addEventListener(MouseEvent.MOUSE_OUT, MouseOutTick1);
function GoToStart(event:MouseEvent):void
{ gotoAndStop(1);}
function MouseOverTick1(event:MouseEvent):void
{ txtField.text = “Vesicle Formation”;
txtField.x = 120;
txtField.y = 385;
addTextField ();}
function addTextField ():void
{ var myFormat:TextFormat = new TextFormat();
myFormat.color = 0x000000;
myFormat.size = 10;
txtField.setTextFormat(myFormat);
addChild (txtField);}
function MouseOutTick1(event:MouseEvent):void
//just adding some text to see if it works - will replace with “” when it does
txtField.text = “Yikes”; }