组件的写成

(function (window, document, $, undefined) {
    //todo
}(window, document, jQuery));

WebcamToy.Audio = (function (c) {
}(WebcamToy));

WebcamToy.Camera = (function () {
})()

window.homeNav = {
    open:function(){
        //开始动画
        console.log("open");
    };
    close:function(){
        //结束动画

    };
}

var WebcamToy = {};
WebcamToy.RuntimeTimer=function(){
    var _this=this,endtime=180,current=0,timer;

    this.update=function(){
        current=0;
    }

    this.destroy=function(){
        clearInterval(timer);
        window.location.reload();
    }

    this.start=function(){
        timer=setInterval(function(){
            current++;
            if(current>=endtime){
                _this.destroy();
            }
        },1000);
    }

    var _init=function(){

        this.start();
    }

    _init.apply(this,arguments);
}