void openTileset() {
		try {
			int success = tschooser.showOpenDialog(mainFrame);
			if (success == JFileChooser.APPROVE_OPTION) {
				GraphicsBank g = new GraphicsBank();
				g.loadTileset(tschooser.getSelectedFile());
				setGraphicsBank(g);
			}
		} catch (FileNotFoundException e) {
			PromptDialog.tell("Selected file could not be found", "OK");
			System.out.println(e);
			e.printStackTrace();
		} catch (IOException e) {
			PromptDialog.tell("Could not read the file", "OK");
			System.out.println(e);
			e.printStackTrace();
		}
	}