/**
* Loads vocations list.
*
* <p>
* This method loads vocations from given file. You can create local instances of vocations lists directly - calling this method will associate loaded list with POT class instance and will make it available everywhere in the code.
* </p>
*
* <p>
* Note: Since 0.1.0 version this method loads instance of {@link OTS_VocationsList OTS_VocationsList} which you should fetch to get vocations info instead of calling POT class methods.
* </p>
*
* <p>
* Note: Since 0.2.0+SVN this method is static.
* </p>
*
* @version 0.2.0+SVN
* @since 0.0.5
* @param string $file vocations.xml file location.
* @throws DOMException On DOM operation error.
*/
public static function loadVocations($file)
{
// loads DOM document
self::$vocations = new OTS_VocationsList($file);
}
