'UPDATES THE ACTIVE FEATURE THEMES TO CARRY A NEW ID FILED NAMED "New_ID" CONTAINING AUTO-GENERATED UNIQUE IDs

'LOADING SCRIPTS
' 1. Double-click on an empty area on the bar containing all buttons, The "Customize" dialog appears
' 2. In the "Type" pull-down, select "View"
' 3. In the "Category" pull-down, select "Buttons", The display right below the pull down changes to show an array of buttons
' 4. Slide the scrollbar (below the button display) to the right and select the last button by clicking on it, Now click on "New"
' 5. A new blank button appears. Double-click on the blank area to the right of the entry "Click" (just below the button display)
' 6. The "Script Manager" Dialog appears, Click on "New", Enter any name in the input box that appears (prefix it with "Z_" so that it goes in the last)
' 7. A new blank script document (With the name just specified) appears. Delete whatever is on it...
' 8. Either copy-paste this ENTIRE script on the document, or, click on the button with the open-folder icon (tooltip reads "Load text file") and navigate to this file
' 9. Either done, click on the button with the tick-mark icon ("compile"). If spatial analyst is not loaded, there will be some error message, Load it
' 10. After the script is compiled (the tick-mark buton should be grayed out), close the script window and return to the view
' 11. Click on the new button to run the script

TheView=Av.GetActiveDoc

ActiveThemes=TheView.GetActiveThemes.Count

if (ActiveThemes=0) then
msgbox.error("Please activate the theme to be updated","No active theme!")
exit
end

TheTheme=TheView.GetActiveThemes.Get(0)

TheFtab=TheTheme.GetFtab

TheFtab.SetEditable(TRUE)
TheField=TheFtab.FindField("New_ID")

if (TheField=Nil) then
  NewField=Field.Make("New_ID",#FIELD_LONG,8,0)
  fldlist={NewField}
  TheFtab.AddFields(fldList)
  TheField=NewField
end

ctr=0

for each rec in TheFtab
ctr=ctr+1
TheFtab.SetValue(TheField,rec,ctr)
end

TheFtab.SetEditable(False)
msgbox.info("Attribute table updated","Operation Complete")