public function createChangeset($changesets=array())
	{
		$token = $this->oauth->getToken();

		// Set parameters.
		$parameters = array(
			'oauth_token'        => $token['key'],
			'oauth_token_secret' => $token['secret'],
		);

		// Set the API base
		$base = 'changeset/create';

		// Build the request path.
		$path = $this->getOption('api.url') . $base;

		$xml = '<?xml version="1.0" encoding="UTF-8"?>
			<osm version="0.6" generator="JoomlaOpenStreetMap">';

		if (!empty($changesets))
		{
			// Create Changeset element for every changeset
			foreach ($changesets as $tags)
			{
				$xml .= '<changeset>';

				if (!empty($tags))
				{
					// Create a list of tags for each changeset
					foreach ($tags as $key => $value)
					{
						$xml .= '<tag k="' . $key . '" v="' . $value . '"/>';
					}
				}

				$xml .= '</changeset>';
			}
		}

		$xml .= '</osm>';

		$header['Content-Type'] = 'text/xml';

		// Send the request.
		$response = $this->oauth->oauthRequest($path, 'PUT', $parameters, $xml, $header);

		return $response->body;
	}