Syntax	maxcol : int
Description	The maxcol function is used to determine the number of columns on the screen.
Example	This program outputs the maximum column number. put "Number of columns on the screen is ", maxrow
Details	For IBM PC compatibles as well as most UNIX dumb terminals, in "text" or "screen" mode, maxcol = 80. For the default IBM PC compatible "graphics" mode (CGA), maxcol = 40.
See also	locate procedure for an example of the use of maxcol.