How can I add javascript text fields to Acrobat pages from Applescript please?

Question

I have a real need to add text fields to Acrobat document pages from Applescript. I can't access the Headers and Footers from Applescript in Acrobat XI. I can set watermarks using the following script, but cannot for the life of me work out how to add text fields. Any advice please?
Regards
set TempAttachmentName to "(20140717121212Z)"
set PreserveFileName to "This is a test"
set bypass to false
tell application "Adobe Acrobat Pro"
  activate
  set CountOfPages to count of pages
  repeat with PageCounter from 1 to CountOfPages
  tell application "System Events" to tell process "AdobeAcrobat"
  try
  click menu item "Page..." of menu 1 of menu item "Go To" of menu 1 of menu bar item "View" of menu bar 1
  tell current application to delay 0.1
  keystroke PageCounter as text
  tell current application to delay 0.1
  keystroke return
  if not bypass then
  my ADDHeaderFooter(TempAttachmentName, PreserveFileName & " " & CountOfPages, PageCounter)
  end if
  end try
  end tell
  end repeat
end tell
on ADDHeaderFooter(The_String1, The_String2, currentPage)
  tell application "Adobe Acrobat Pro"
  activate
  set myDocument to document 1
  tell myDocument
  tell page currentPage
  set cbox to crop box
  set item 2 of cbox to (item 2 of cbox) + 44
  set item 4 of cbox to (item 4 of cbox) - 44
  set media box to cbox
  set crop box to cbox
  set theResult1 to my Add_WaterMarkText(The_String1, "IDAutomationHC39M", 12, 1, 1, 1, 0, 3, 10, 3, 0)
  do script theResult1
  set theResult2 to my Add_WaterMarkText(The_String2, "Times", 16, 1, 1, 1, 0, 4, 10, -6, 0)
  do script theResult2
  end tell
  end tell
  end tell
end ADDHeaderFooter
on Add_WaterMarkText(cText, cFont, nFontSize, nS, nE, nTA, nHA, nVA, nHV, nVV, nR)
  set Params to "cText: '" & cText & "'," & return
  set Params to Params & "cFont: '" & cFont & "'," & return
  set Params to Params & "nFontSize: '" & nFontSize & "'," & return
  if class of nS is integer then set Params to Params & "nStart: " & (nS - 1) & "," & return
  if class of nE is integer then set Params to Params & "nEnd: " & (nE - 1) & "," & return
  -- 0 = left, 1 = centre, 2 = right
  if class of nHA is integer then set Params to Params & "nHorizAlign: " & nHA & "," & return
  -- 3 = top, 4 = bottom
  if class of nVA is integer then set Params to Params & "nVertAlign: " & nVA & "," & return
  -- offset in points
  if class of nHV is integer then set Params to Params & "nHorizValue: " & nHV & "," & return
  -- offset in points
  if class of nVV is integer then set Params to Params & "nVertValue: " & nVV & "," & return
  if class of nR is integer then set Params to Params & "nRotation: " & nR & "," & return
  set javascript to "this.addWatermarkFromText({" & Params & "});"
  return javascript
end Add_WaterMarkText

Answer 1

G'day
Unfortunately I don't have the API. My Adobe Reader installation updating to version XI failed, and subsequent attempts to fall back on the X version are blocked by the partial install of XI. Damn Adobe stuff.
Could someone please post the relevant part of the API to give me some pointers, please.
I ha mucked about with some information I found on the Web, and come up with the following, which fails because I can't work out how to address the current document with the variable myDoc.
Regards, Brian
set Params to Params & "var myDoc = this;" & return
set TempAttachmentName to "(20140717121212Z)"
set PreserveFileName to "This is a test"
set bypass to false
tell application "Adobe Acrobat Pro"
  activate
  set CountOfPages to count of pages
  repeat with PageCounter from 1 to 1 # CountOfPages
  tell application "System Events" to tell process "AdobeAcrobat"
  try
  click menu item "Page..." of menu 1 of menu item "Go To" of menu 1 of menu bar item "View" of menu bar 1
  tell current application to delay 0.1
  keystroke PageCounter as text
  tell current application to delay 0.1
  keystroke return
  if not bypass then
  my ADDHeaderFooter(TempAttachmentName, PreserveFileName & " " & CountOfPages, PageCounter)
  end if
  end try
  end tell
  end repeat
end tell
on ADDHeaderFooter(The_String1, The_String2, currentPage)
  tell application "Adobe Acrobat Pro"
  activate
  set myDoc to document 1
  tell myDoc
  tell page currentPage
  set cbox to crop box
  set item 2 of cbox to (item 2 of cbox) + 44
  set item 4 of cbox to (item 4 of cbox) - 44
  set media box to cbox
  set crop box to cbox
  set theResult1 to my Add_WaterMarkText(The_String1, "IDAutomationHC39M", 12, 1, 1, 1, 0, 3, 10, 3, 0, myDoc)
  do script theResult1
  set theResult2 to my Add_WaterMarkText(The_String2, "Times", 16, 1, 1, 1, 0, 4, 10, -6, 0, myDoc)
  do script theResult2
  end tell
  end tell
  end tell
end ADDHeaderFooter
on Add_WaterMarkText(cText, cFont, nFontSize, nS, nE, nTA, nHA, nVA, nHV, nVV, nR, myDoc2)
  #set Params to "var myDoc = app.newDoc();" & return
  set Params to ""
  set Params to Params & "var myDoc = this;" & return
  set Params to Params & "var inch = 72;" & return
  set Params to Params & "var Bbox = this.getPageBox(" & "\"Crop\"" & ");" & return
  set Params to Params & "var f = myDoc.addField(" & "\"Text1\"" & ", " & "\"" & cText & "\"" & ", 0, [72, Bbox[1]-inch, Bbox[2]-2*inch, Bbox[1]-2*inch ] );" & return
  set Params to Params & "f.strokecolor = color.black;" & return
  set Params to Params & "f.richText = true;" & return
  set javascript to Params
  return javascript
end Add_WaterMarkText