if (tabs[tab] == null) {  return; }
	private void drawIdleImage(int tab){		Graphics g = tabs[tab].getIdleImage().getGraphics();				if( activeTab == tab){			g.drawImage(activeImage[tab], 0, 0, null);		} else {			g.drawImage(idleImage[tab], 0, 0, null);			if((tab - activeTab) == 1){				g.drawImage(selectedCorner, 0, 4, null);			} else if (tab > 0) {				g.drawImage(idleCorner, 0, 4, null);			}		}		g.dispose();	}