/// <summary>
/// Attach the event repeater to the specified document instance. Call Detach
/// when you no longer want to receive events from the document.
/// </summary>
/// <param name="webBrowser"></param>
public void Attach(IHTMLDocument2 document)
{
// confirm pre-conditions
Debug.Assert(document != null);
Debug.Assert(connectionPoint == null);
// query for the IConnectionPointContainer interface
IConnectionPointContainer cpContainer = (IConnectionPointContainer)document;
// find the HTMLDocumentEvents2 connection point
cpContainer.FindConnectionPoint(ref iidHTMLDocumentEvents2, out connectionPoint);
// attach to the event interface
connectionPoint.Advise(this, out connectionPointCookie);
//cache a handle to the document
HtmlDocument = document;
_eventCounter.Reset();
}