Подправил глючек при сортировке в меню

			//TABLE BODY
			$r = 0;
			while ($item = mysql_fetch_assoc($result)){			
				$r++;
				if ($r % 2) { $row_class = 'lt_row1'; } else { $row_class = 'lt_row2'; }

                                $is_up_arrow=true; $is_down_arrow=true;
                                if(!is_able_up($item['NSLeft'])) $is_up_arrow=false; 
                                if(!is_able_down($item['NSRight'])) $is_down_arrow=false; 

if ($is_down_arrow) echo '<a title="Вниз" href="?view='.$GLOBALS['applet'].'&do=move_down&co='.$item[$_fields[$key]['field']].'&id='.$item['id'].'"><img src="images/actions/down.gif" /></a>'; else echo '<img src="images/actions/blank.gif" />';
 
if ($is_up_arrow) echo '<a title="Вверх" href="?view='.$GLOBALS['applet'].'&do=move_up&co='.$item[$_fields[$key]['field']].'&id='.$item['id'].'""><img src="images/actions/top.gif" /></a>'; else echo '<img src="images/actions/blank.gif" />';

function is_able_down($nsright) {
$view = $_REQUEST['view'];
if ($view != 'menu') return true;
$res=false; $nsright++;
$sql = "SELECT NSLeft, NSRight FROM cms_menu WHERE NSLeft=$nsright";
$result = dbQuery($sql) ;
 
if (mysql_num_rows($result)>0) { 
   $res=true;
} else {
   $res=false;
}
 
return $res;
}
 
function is_able_up($nsleft) {
$view = $_REQUEST['view'];
if ($view != 'menu') return true;
 
$res=false; $nsleft--;
$sql = "SELECT NSLeft, NSRight FROM cms_menu WHERE NSRight=$nsleft";
$result = dbQuery($sql) ;
 
if (mysql_num_rows($result)>0) { 
   $res=true;
} else {
   $res=false;
}
 
return $res;
}