function checkuncheck(tog,item)%CHECKUNCHECK Check or uncheck a menu item%%	CHECKUNCHECK(TOG,ITEM)%%       if the value of TOG is 1, check the menu item%	if the value of TOG is 0, uncheck the menu item%%	M. Young 6 February, 1995%%% Copyright (c) 1995 by Claudio Rivetti and Mark Young% claudio@alice.uoregon.edu,    mark@alice.uoregon.edu%if get(tog,'value')==0	set(item,'Checked','off');else	set(item,'Checked','on');endreturn