public static synchronized JarImageLoader getInstance(Class<?> clazz) 
	{
		if(instances == null)
			instances = new HashMap<Class<?>, JarImageLoader>();
		
		if(instances.containsKey(clazz) == false)
		{
			instances.put(clazz, new JarImageLoader(clazz));
		}
		
		return instances.get(clazz);
	}