Synopsis: 

       glb_set(index,string)

Arguments:

       index - This is the index into the static global array (from 0 to 1023)

       string - This is the string value to set the specified global array element to.

Description:   This function allows for an element of the static global array to be set.     The index to the global array runs from 0 to 1023 (giving a maximum of 1024 elements).        The maximum length of each string in the global array is 255 characters.

Returns:    0 if successful, -1 if an invalid element is specified.