def dbh_xlg(path, contenttype, extension, roottag, nsurl):
    """ Generic XLG Handler - Returns xlg_viewer for all XLG files """
    if (extension == 'xlg' or extension == 'xlp') and nsurl.startswith(
        'http://thermal.cnde.iastate.edu'):
        return 'db_datacollect_v2_viewer'
    else:
        return False
