to get the page source of webpage including javascript functions of the page

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C#

I need the full page source of for example www.rbi.org.in. itried by using http request and also i used web client request. but i got only the html code i didnt get inner java script code pls anyone help me. i am using c#

string url = "http://www.rbi.org.in/";
CWebClient wc = new CWebClient();
doc = wc.DownloadString(url);