int class_lookup (const char *name)
{
   int class;
 
   for ( class = 0; class < (MAX_CLASS-1); class++)
   {
        if (LOWER(name[0]) == LOWER(class_table[class].name[0])
        &&  !str_prefix( name,class_table[class].name))
	{
            return class;
	}
   }
 
   return -1;
}