NAME
        RangeRand - generate a random number within a specific integer range

   SYNOPSIS
        number = RangeRand(maxValue);

        uword rangerand(uword);

   FUNCTION
        RangeRand() accepts a value from 0 to 65535, and returns a value
        within that range.

        maxValue is passed on stack as a 32-bit integer but used as though
        it is only a 16-bit integer. Variable named RangeSeed is available
        beginning with V33 that contains the global seed value passed from
        call to call and thus can be changed in a program by declaring:

          extern ULONG RangeSeed;

   INPUTS
        maxValue - the returned random number will be in the range
                   [0..maxValue-1]

   RESULT
        number - pseudo random number in the range of [0..maxValue-1].

   SEE ALSO
        fastrand()