public static SendResourceHashes getCRCMap()
	{
		// Create a hashmap as return value and populate it with
		// entries of key - hashID
		HashMap<String,Long> rval = new HashMap<String,Long>();
		for(String key : resourceByString.keySet())
		{
			Resource resource = resourceByString.get(key);
			rval.put(key, resource.hashID);
		}
		
		// Generate a network object and pack the resource hashes into it.
		SendResourceHashes network_object = new SendResourceHashes();
		network_object.filenameToCRC = rval;
		return network_object;
	}