Takes two parameters, Source, Match
This command tallies the number of occurrences that the Match parameter is contained in the Source parameter, and returns the tally as an integer.
This is a similar command to Tally$, which returns the tally as a string.
[New] source = "abcda"
[New] match = "A"
[New] results = Tally$ source, match
Html ("results: " & results) 'results is equal to 0 (case sensitive)