Timer not acting as expected

I have an FLA file with several frames. Frame 1 is the "home page". Button take you to frame 2, 3, etc.  Those frames have movie clip on them. Each movie clip contains 3-4 frames of content.

I found some AS3 code for a timer that track mouse movement. Each time the mouse is touched the timer resets. The timer is set to return to frame 1 (home page) of the main timeline if the mouse is left untouched for longer than a set amount of time in the code.

This timer seems to work fine for a bit. Then it starts getting going haywire the more its used. Some times I jump to a frame with a movie clip on it and after 1 second it jumps back the home page. The next time I navigate down the timeline it may stay on a frame for a longer period of time.

From reading through the forums I am thinking I am trigerring multiple timers maybe. I am not sure.

At the end of the day I want have the site sit at the home page until I click a button to go to another frame to view other movie clips and their content. Once I am done browsing, I want to be a ble to walk away from it and after a set amount of time I want the timeline to return to frame 1 (home page) so it is ready to use for the next person.

Here is the code I am currently using that I found online and tried to repurpose for this.

//------------------

var nPrevMouseX:Number;

var nPrevMouseY:Number;

var myTimer:Timer = new Timer(180000);

myTimer.addEventListener(TimerEvent.TIMER, fOnTimer, false, 0, true);

myTimer.start();

function fOnTimer(evtTimer:TimerEvent):void {

// If the mouse has not moved

if(mouseX == nPrevMouseX && mouseY == nPrevMouseY){

gotoAndStop(1);

stage.addEventListener(MouseEvent.MOUSE_MOVE, fOnMouseMove, false, 0, true);

myTimer.reset();

}else{

// Capture the mouse's position

nPrevMouseX = mouseX;

nPrevMouseY = mouseY;

}

}

function fOnMouseMove(evtMouseMove:MouseEvent):void {

Mouse.show();

// Restart the timer

myTimer.start();

// Remove the listener

stage.removeEventListener(MouseEvent.MOUSE_MOVE, fOnMouseMove);

}

//----------------

Thank you for any insight you might have. Take Care.