char *menu2[]={
	"cut",
	"snarf",
	"paste",
	0
};
char *menu3[]={
	"read",
	"write",
	"exit",
	0
};
void popup(void){
	Panel *m2, *m3, *pop;
	m2=plmenu(0, 0, menu2, PACKN|FILLX, 0);
	m3=plmenu(0, 0, menu3, PACKN|FILLX, 0);
	root=plframe(0, EXPAND);
	pop=plpopup(root, EXPAND, 0, m2, m3);
	pledit(pop, EXPAND, Pt(0,0),
		L"How now, brown cow?", 19, 0);
}