public static void addTextLine(String s){ 
		StyledDocument doc = GuiWindow.textArea.getStyledDocument();

		Style style = GuiWindow.textArea.addStyle("I'm a Style", null);
		StyleConstants.setForeground(style, Color.black);
		
		try { 
		 doc.insertString(doc.getLength(), s + "\n" ,style); 
		}
		catch (BadLocationException e){}
	}