switch (blockHt)
	        	{
	        	case 1:
	        	while (d > 0)
	        	{
	        		if (h - d - blockHt > max)
	        		{
	        			while (d > h - max - blockHt )
	        			{
	        				r.raise();
	        				d--;
	        			}
	        		break;
	        		}
	        		r.raise();
	        		d--;
	        	}
	        	break;
	            case 2:
	            while (d > 0)
	            {
	        		if (h - d - blockHt > max)
	        		{
	        			while (d > h - max - blockHt )
	        			{
	        				r.raise();
	        				d--;
	        			}
	        		break;
	        		}
	        		r.raise();
	        		d--;
	            }
	        	break;
	            case 3:
	            while (d > 0)
	            {
	        		if (h - d - blockHt > max)
	        	  {
	        		break;
	        	  }
	        	r.raise();
	        	d--;
	        	}
	            break;
	        	}