求救如何做好教教看板娘

就是想在看板娘的页面显示一个对话框，提示欢迎信息

<script type="text/javascript" src="assets/plugins/custom/L2Dwidget/L2Dwidget.min.js"></script>
    <script type="text/javascript" src="assets/plugins/custom/L2Dwidget/L2Dwidget.0.min.js"></script>
    <script type="text/javascript">
        $(function () {
            L2Dwidget.init({
                "model": {
                    jsonPath: HOST_URL+"/assets/plugins/custom/L2Dwidget/haruto/haruto.model.json",
                    "scale": 1
                },
                "display": {
                    "superSample": 1,
                    "width": 100,
                    "height": 210,
                    "position": "left",
                    "hOffset": 0,
                    "vOffset": 0
                }

            });
        })
    </script>

你要的是这个不？