I am creating my first simple app. So far i cannot get my button to go to next scene when it is clicked. i have button defined in main-scene.html and am using the below to call it im my .jsjsjs $file$:

function MainAssistant(argFromPusher) {

MainAssistant.prototype = {
setup: function() {
Mojo.Event.listen(s("mybutton"), "click", this.nextScene.bindAsEventListener(this));

cleanup: function(event) {
nextScene = function(event) {

It seems as though the nextScene function breaks my app, as for I am not able to see even the main scene once i run it. Any suggestions?????