def join_path(path, file_name):
    """ Joins path with short file name. If file name is full file name - 
		returns just it. """
    full_name = file_name
    sep = '/'
    if path != None and path != '' and not sep in file_name:
        if path.endswith(sep):
            sep = ''
        full_name = path + sep + file_name
    return full_name
