Magento get the root category url
I'm a Magento newbie.

I've customized the top navigation bar and now is something like this:

    HOME   CATALOG   CMS_LINK   CMS_LINK   CMS_LINK

For the `HOME` link and the `CMS_LINK` links all it's ok but I would when an user click on the `CATALOG` will see a page with all categories (subcategories of the root category) in a grid view with category i
Magento get the root category url
===

I'm a Magento newbie.

I've customized the top navigation bar and now is something like this:

    HOME   CATALOG   CMS_LINK   CMS_LINK   CMS_LINK

For the `HOME` link and the `CMS_LINK` links all it's ok but I would when an user click on the `CATALOG` will see a page with all categories (subcategories of the root category) in a grid view with category i