diix

on replace_chars(this_text, search_string, replacement_string)
	if this_text contains the search_string then
		set AppleScript's text item delimiters to the search_string
		set the item_list to every text item of this_text
		set AppleScript's text item delimiters to the replacement_string
		set this_text to the item_list as string
		set AppleScript's text item delimiters to ""
	end if
	return this_text
end replace_chars