If a WebBrowser control makes a new window by registering a new
WebBrowser and form like,

Set frmPop = New frmPopUp
frmWB.WebBrowser1.RegisterAsBrowser = True
Set ppDisp = frmPop.WebBrowser1.object
frmPop.Visible = True

and the new form contains a javascript popup window, all is fine.
However, if this popup window has a close button with a window.close, the
html document (WebBrowser control) will close, but the frmPop stays open
as a blank form. Is there any to catch this window.close and close the
frmPop when the WebBrowser closes? I think I can capture the window.close
using html object library but I don't know what event to put it in. Thank
you for your help.