private void clearTimeT()
		{//sets all values of timeT to null
			for (int i = 0; i < DataBase.timeT.length; i++) {
				for (int j = 0; j < DataBase.timeT[0].length; j++) {
					for (int k = 0; k < DataBase.timeT[0][0].length; k++) {
						for (int l = 0; l < DataBase.timeT[0][0][0].length; l++) {
							if (DataBase.timeT[i][j][k][l] != null) {
								DataBase.timeT[i][j][k][l] = null;
							}
						}
					}
				}
			}
		}