[taponitrof]

Thanks for the reply. I figured out how to do it. If I read your message right, you suggest the same way
Anyway, code below works.

{if ($main neq 'cart' or $cart_empty) and $main neq 'checkout'}
{if $main neq 'catalog' or $current_category.category neq ""}
<div id="left-bar">
{include file="customer/left_bar.tpl"}
</div>
{/if}
{/if}