Returns the index of the first occurrence of findStr in the given string, starting from the end of the string and moving backwards. Use a start value of -1 to start at the very end of the string regardless of length. Index 1 is the first character in the string, returns 0 if not found. By default this is case insensitive, use the ignoreCase parameter to set case sensitivity.
integer FindStringReverse( str, findStr, ignoreCase, start )
integer FindStringReverse( str, findStr )