[vb2008] Change iFrame src in webbrowser control

[n3mesis125]

Hey Folks, I'm looking to change the iframe src of an iframe in my webbrowser control using an onclick (the javascript triggers window.external.iflink()

and in VB2008 I have:

Public Sub iflink()
Dim CurrentWindow As HtmlWindow = WebBrowser1.Document.Window
        For Each Frame As HtmlWindow In CurrentWindow.Frames 'Get all frames
            If Frame.Name = "cf1" Then
                Frame.Navigate("csc.php")
            End If
        Next
End Sub

However the above code doesn't seem to work, how can i target iframe id (cf1) and change its source using an onclick within the webbrowser control?

Many thanks,
n3m.