CAllSite::IsDistinctDocRoots

static function IsDistinctDocRoots($arFilter=array())
{
	$s = false;
	$res = CSite::GetList('', '', $arFilter);
	while($ar = $res->Fetch())
	{
		if($s!==false && $s!=$ar["ABS_DOC_ROOT"])
			return true;
		$s = $ar["ABS_DOC_ROOT"];
	}
	return false;
}