void _WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
try
{
string str = webBrowser1.DocumentText;

submit = null;
foreach (HtmlElement he in webBrowser1.Document.GetElementsByTagName("input") )
{
string type = he.GetAttribute("type");
string name = he.GetAttribute("name");

if ((type == "text") && (name == "firstname"))
{
he.SetAttribute("value", ename);
}

if ((type == "text") && (name == "lastname"))
{
he.SetAttribute("value", famil);
}