Interactivity with AS3 - HELP PLEASE

programming flash
1

Im making a movie clip in which when you mouse over the image the image zooms to the point where the mouse is, this is my code so far as you can see the image i want to zoom has the instance name of “interactiveimage”

import:MouseEvent


interactiveimage.addEventListener(MouseEvent.MOUSE_OVER = function()
{
	  this._xscale = this.yscale = 120;
}


interactiveimage.addEventListener(MouseEvent.MOUSE_OUT = funtion()
{
	 this.xscale = this._yscale = 100;
}

when i test this nothing happens.

im new to flash and AS3 could anyone help me out and tell me where im going wrong please.

thanks in advance