Problem with scene link button

i m a new user for flash, my flash version is CS3.
i have some problem with the AS3 code.
now my project have 3 scene and i want to link between all scene.

this common i use to go to next page and previous page for each scene,
stop();
function nextscene1(event:MouseEvent):void
{
nextScene();
}
function prevscene(event:MouseEvent):void
{
prevScene();
}

prev.addEventListener(MouseEvent.CLICK, prevscene);
nex1.addEventListener(MouseEvent.CLICK, nextscene1);

and this common i use to link to each scene,

stop();
function buttonClick(event:MouseEvent):void

{
gotoAndStop(“3”, “menu”);
}
page2.addEventListener(MouseEvent.CLICK,buttonClic k);

my problem is i can success with the next/prev function if i only click the “nex/prev” button, but when i click the “page2” button to link to particular page, it only can function 1 time and at some time the “nex” and “prev” function will lost