list insert( new, pq )
	list new, pq;

	{struct rec r;
	list p;
	r.next = pq;
	p = &r;
	while ( p->next != NULL && p->next->k > new->k ) p = p->next;
	new->next = p->next;
	p->next = new;
	return( r.next );
	};