cocos2d-html5 can't make a basic ccmenu work - cocos2d-iphone

Question

Sorry if this is a newbie question but I have just started using cocos2d-html and I am having some issues creating a ccmenu with an image. Here is my code:
var ActionLayer = cc.Layer.extend({
getTexture: function (name) {
return cc.TextureCache.getInstance()
.addImage('./images/' + name + '.png');
},
addObject: function (desc) {
var sprite = cc.Sprite.createWithTexture(this.getTexture(desc.name));
sprite.setAnchorPoint(desc.anchor || cc.p(0.5, 0.5));
sprite.setScaleX(desc.scaleX || desc.scale || 1);
sprite.setScaleY(desc.scaleY || desc.scale || 1);
sprite.setRotation(desc.rotation || 0);
sprite.setPosition(cc.p(desc.x || 0, desc.y || 0));
this.addChild(sprite, desc.z || 0);
return sprite;
},
checkAnswer:function(){
alert('yay');
},
init: function () {
this._super();
this.removeAllChildrenWithCleanup(true);
this.setTouchEnabled(true);
var layer1 = cc.LayerColor.create(
new cc.Color4B(00, 185, 214, 255), 1024, 768);
layer1.setPosition(new cc.Point(0.0,0.0));
this.addChild(layer1,-2);
var director = cc.Director.getInstance(),
self = this,
winSize = director.getWinSize();
var bgSprite = this.addObject({
name: "GenericBG",
scaleY: 1,
anchor: cc.p(0, 0),
z: 0
});
var closeItem = cc.MenuItemImage.create('./images/sign.png','./images/sign.png',this,'checkAnswer');
closeItem.setAnchorPoint(cc.p(0.5, 0.5));
var menu = cc.Menu.create(closeItem);
menu.setPosition(500,300);
this.addChild(menu, 5);
}
}); //end ActionLayer
//--------------------- Scene ---------------------
var ActionLayerScene = cc.Scene.extend({
onEnter: function () {
this._super();
var layer = new ActionLayer();
layer.init();
this.addChild(layer);
}
});
The menu is displayed on the screen but when I click on the menuitem, nothing happens
There is no javascript error on the console so I really don't know how to debug this.
Thanks
Cyril

Answer 1

Your parameter for cc.MenuItemImage.create() is wrong. Instead of:
var closeItem = cc.MenuItemImage.create('./images/sign.png','./images/sign.png',this,'checkAnswer');
it should be:
var closeItem = cc.MenuItemImage.create('./images/sign.png','./images/sign.png','checkAnswer', this);

Answer 2

for(var i=0; i<5; i++){
var colorImg = cc.MenuItemImage.create(color_list[i], color_list[i], "colorAction", this);
colorImg.setPosition(new cc.Point(40+i*70, 38));
colorImg.tag = i+100;
this.colorImageArray.push(colorImg);
colorMenu.addChild(colorImg);
}
colorAction:function(event)
{
var colorTag = event.tag;
switch(colorTag)
{
case 1:
break;
case 2:
break;
case 3:
break;
}
}