之后在URL中执行javascript函数？这将设置querystring参数的值

I have some wierd but ETHICAL requirement. In our organization we have some tableau analytics dashboards. In Tableau web application paramaters required to filter the view can be pass through the querystring. E.g. I have date paramater defined as "StartDate" in tableau workbook, I can pass the value to this paramater using the querystring as www.xyz.com?StartDate="20/05/2016". Now my problem is, this tableau workbook URLs are embedded in another in-house web appplication but we don't have access to the code of that application so we can't pass the tableau parameter value from that web application. However we can request to embed the customized tableau URLs in that web application. But, for that we need to somehow send the date parameters through URL. I have some wierd but ETHICAL requirement. In o