void rtabled(node cnode, int i, int j) throws valid_not_checked
	{
		cnode.removeRtable(i, j);
		query q,lastq=null;
		node tn;
		int found1=0,a=i;
		while (found1==0)
		{
			for(int b=0;b<common.maxCol;b++)
			{
				tn=cnode.getRtable(a, b);
				if (tn==null) continue;
				if (tn.isValid()==0)
				{
					cnode.removeRtable(a,b);
					continue;
				}
				q=new query(QTYPE.GIMMERTABLE,null,cnode);
				q.setCnode(tn);
				q.arg1=1;
				q.arg2=i;
				q.arg3=j;
				enq(q);
				lastq=q;
				found1=1;
			}
			a++;
			if (a==common.maxRow) break;
		}
		if (found1==1) lastq.arg4=1;
	}