🚀 go-pugleaf

I have a script that applies xml tags to text frames and their paragraphs. I'd like it to ignore text frames that are on master pages. How do I do this? Here's a piece of the script:

Private Sub Command1_Click()
Dim myInDesign As InDesign.Application
Set myInDesign = CreateObject("InDesign.Application.2.0")
Set myDocument = myInDesign.ActiveDocument
Text1.Text = "Working..."
For myStoryCount = 1 To myDocument.Stories.Count
    Set myStory = myDocument.Stories.Item(myStoryCount)
    myXMLTag = "Story"
    Set myXMLStory = myDocument.XMLElements.Add(myXMLTag, myStory.TextFrames.Item(1))
        For myParaCount = 1 To myStory.Paragraphs.Count
            Set myPara = myStory.Paragraphs.Item(myParaCount)
            Select Case myPara.ParagraphStyle
                Case "Body Text"
                myXMLTag = "bodytext"
                Set myXMLPara = myXMLStory.XMLElements.Add(myXMLTag, myPara)
                Case "Heading 1"
                myXMLTag = "heading1"
                Set myXMLPara = myXMLStory.XMLElements.Add(myXMLTag, myPara)
                Case "Heading 2"
                myXMLTag = "heading2"...

Thanks,
Phil Redman