Untitled

private void WbrBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    {

        HtmlElementCollection Elements = wbrBrowser.Document.Body.All;
        foreach (HtmlElement elem in Elements)
        {
            elem.DoubleClick += new HtmlElementEventHandler(WbrBrowser_MouseDoubleClick);
        }
    }

private void WbrBrowser_MouseDoubleClick(object sender, HtmlElementEventArgs e)
    {
        rtbTextEditor.SelectionStart = 0;
        HtmlElement elem = (HtmlElement)sender;
        rtbTextEditor.Focus();
        string start = elem.InnerText;
        if (wbrBrowser.DocumentText.IndexOf(start) == -1)//not found
        {
            rtbUserTextEditorOnlyText.Text = @"String not found in: " + elem.TagName;
        }
        else
        {
            rtbTextEditor.SelectionStart = wbrBrowser.DocumentText.IndexOf(start);
        }
    }

<html>
<head>
<title>IntroPage editing page</title>
<body>
<h1 id ="testing">Wanna change this! Now here is some text to try some different things with.</h1>
<div>Hello from DIV</div><p>So here is another element, a "p" element, let's try to make this a little more generic..
</p>
</body>
</head>
</html>