Javascript 反应动力学

我正在努力使我的动态JS容器响应。目前这是我的代码

    window.onresize = function(event) {  //this function will resize your stage to the size of your window
        stage.setWidth(window.innerWidth);
        stage.setHeight(window.innerHeight);
        stage.draw(); //redraw the stage, not sure if really needed, but good to have.
    }

    var stage = new Kinetic.Stage({
        container: 'gamebox', // Find an HTML element
        width: window.innerWidth, // Set width
        height: window.innerHeight // Set heigth
    });

在使用Bootstrap时，我希望获得div类的宽度，而不是获取浏览器窗口的innerWidth。有可能吗？如果有，你怎么做

编辑： 我最终解决了我的问题，把我的代码改成这个

window.onresize = function(event) {  //this function will resize your stage to the size of your window
    stage.setWidth($('.col-lg-6').width());
    stage.setHeight($('.col-lg-6').height());
    stage.draw(); //redraw the stage, not sure if really needed, but good to have.
}
var stage = new Kinetic.Stage({
    container: 'gamebox', // Find an HTML element
    width: $('.col-lg-6').width(), // Set width
    height: $('.col-lg-6').height() // Set heigth
});

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你应该把你的答案放在答案部分，并在stackoverflow允许的时候接受它。干杯