crop internet browser?

I placed a rotating banner from my website in my application. The problem is that I only want the browser to show the banner and none of the surrounding website. How can I crop the browser to show only the banner?

Add a Picturebox to the Form and place the WebBrowser control within it (so the Picturebox is the WebBrowsers Parent.), i.e.

Code:

---

Private Sub Command1_Click()
    On Error GoTo Load_Cancel
    With CommonDialog1
        .CancelError = True
        .DialogTitle = "Open an Animated GIF"
        .Filter = "GIFS (*.GIF)|*.GIF"
        .ShowOpen
        WebBrowser1.Navigate .FileName
        WebBrowser1.Move ScaleX(-12, vbPixels, vbTwips), ScaleY(-19, vbPixels, vbTwips), Width, Height
        Picture1 = LoadPicture(.FileName)
        Picture1.AutoSize = True
    End With
Load_Cancel:
End Sub

---