public void HTMLToOthers(string filename, string filetype)
{
  if (filename.Trim() != "")
  {
    Response.ContentType = "application/vnd" + filetype;
    Response.AddHeader("content-disposition", "attachment;filename=" + filename);
    System.IO.StringWriter stringWrite = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter htmlWrite = new System.Web.UI.HtmlTextWriter(stringWrite);
    System.Web.UI.Page sPage = new System.Web.UI.Page();
    sPage.RenderControl(htmlWrite);
    Response.Write(stringWrite.ToString());
  }



}