CAllWorkflow::__CheckSite

static function __CheckSite($site)
{
	if($site!==false)
	{
		if($site <> '')
		{
			$res = CSite::GetByID($site);
			if(!($arSite = $res->Fetch()))
				$site = false;
		}
		else
			$site = false;
	}

	return $site;
}