Desperately seeking help for displaying image on button

i wrote the following method to create and display a button with an icon, doesn't work and i cannot figure out what the problem might be and how to fix it, please help me...
clo :))
public static void addButton(Container c, String title,
ActionListener listener)
JButton button = new JButton(title);
button.setBorder(null);
button.setFocusPainted(false);
button.setBorderPainted(false);
button.setContentAreaFilled(false);
ImageIcon icon = new ImageIcon("anImage.jpg");
button.setIcon(icon);
c.add(button);
button.addActionListener(listener);
the parameter c is of JPanel type and gets added to a JFrame object,
the source compiles and runs but i see no image on my button, sigh :((!
PS(the image file is placed in the same dir as the source file).

Why buttons and labels might not show up the icon?
Either your image is not in the classpath and you are trying to load it as a resource: see
http://java.sun.com/docs/books/tutorial/uiswing/misc/icon.html
or you are running the java machine from a different directory that you expect it does.
or the file doesn't exist.
To prove that the system cannot load the image use the example in the above link and the url will be null.
URL iconURL = ClassLoader.getSystemResource("anImage.jpg");

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