Setting the aside product menu

[tombaoth]

Hello, prestashop fans,

 

I am trying to make my first site on prestashop CMS and now I need to solve one problem. When left side menu where customer can choose the category of products that he is looking for, so when I cliced on cutegory the left side menu will change because it jump into the category and on in the menu area only displays the subcategories or nothing if the category have no subcategories. Does anybody know to fix it? Bacause I want to have visible all the categories even if customers is in some subcategory. Thank you for any halp.

 

LINK to the web for better understandig: http://obchod.ecolit.cz/index.php