private InputStream getFileFromJar(String jarFilename, String entryFilename) throws IOException
	{
		JarFile jarfile = new JarFile(jarFilename);
		
		try {
			Enumeration<JarEntry> entries = jarfile.entries();
			if(entries != null) {
				while(entries.hasMoreElements()) {
					JarEntry entry = entries.nextElement();
					
					if(!entry.isDirectory()) {
						if(entry.getName().equals(entryFilename)) {
							return jarfile.getInputStream(entry);
						}
					}
				}
			}
			
			return null;
		}
		finally {
			jarfile.close();
		}
	}