how can i search all frames on a page to get the URL for a link named "Compose"?

the only code i know of that will help answer this question is how to search a document for a link by its name

Code:
    For i = 0 To WebBrowser1.Document.links.length - 1
        If WebBrowser1.Document.links(i).outertext = "Compose" Then
        msgbox WebBrowser1.Document.links(i).href
        End If
    Next i