I want to hide category description when some filter is applied.
You can hide category description if any filter is applied in the file
app\design\frontend\<your-package>\<your-theme>\template\catalog\category\view.phtml
just add a condition
<?php if (!Mage::helper('core')->isModuleEnabled('Amasty_Shopby') || !Mage::helper('amshopby/attributes')->getRequestedFilterCodes()):?>
...
... category title and description code ...
...
<?php endif ?>
See more details on Improved Layered Navigation page
See more details on Improved Layered Navigation page
See more details on Improved Layered Navigation page
See more details on Improved Layered Navigation page
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