Accessing a clip object out of scope

I have a clip that has a textbox and then a button inside. I need to change the color of the text when I hover over the text. Below is a code snippet. How to access the link to the "Text" field outside the function? Thanks in advance.

private function createRows () {var containerMc: MovieClip = string;

//Create Text           
var myTxt:TextField = new TextField();
myTxt.htmlText = labelName;
myTxt.antiAliasType = AntiAliasType.ADVANCED;
myTxt.selectable = false;

//Create Symbol Format Text
var myTxtFormat:TextFormat = new TextFormat();
myTxtFormat.color = 0x000000;
myTxtFormat.font  = font;
myTxtFormat.bold = "bold";
myTxtFormat.size = fontSize;

//Format text
myTxt.setTextFormat(myTxtFormat);
containerMc.addChild(myTxt);

//Create button         
var btn:Sprite = new Sprite();
btn.graphics.beginFill(rowColor);

btn.graphics.drawRect(0, 0, width, height);
btn.graphics.endFill();
btn.alpha = 0;
btn.name = someName;
btn.buttonMode = true;

btn.addEventListener(MouseEvent.MOUSE_OVER,testMouseOver);              
containerMc.addChild(btn);

      

        
        
        
      

    

}

private function testMouseOver (e: MouseEvent) {var myTxtFormat: TextFormat = new TextFormat (); myTxtFormat.color = 0xccff00;

var myText:TextField = new TextField;
myText.htmlText = e.currentTarget.name;

myText.setTextFormat(symTxtFormat);

      

        
        
        
      

    

}