# view mouse over only for first sub-category cp ./app/code/core/Mage/Catalog/Block/Navigation.php ./app/code/local/Mage/Catalog/Block/Navigation.php wget -nv http://www.panticz.de/sites/default/files/magento/nav-container-mouse-over/Navigation.php.diff -O /tmp/Navigation.php.htmlChildren.diff patch -p2 ./app/code/local/Mage/Catalog/Block/Navigation.php < /tmp/Navigation.php.htmlChildren.diff # to complete disable mouse over change if ($hasChildren && $level == 0){ to if ($hasChildren && $level == -1){ in ./app/code/local/Mage/Catalog/Block/Navigation.php in line 223