Let\'s say I have two categegories, A and B.
I set A to use \'layout_a\' on Catalog -> Catalog Categories -> Click a category -> click custom design tab
I se
Create an attribute with dropdown type and name attribute code 'which_category'. On the options tab fill in 'category_a' and 'category_b'
Create two files in /app/design/frontend/default/YOURTEMP/template/catalog/product/
lets say: view_cat_a.phtml and view_cat_b.phtml
You can design your specific category product view page based on view.phtml.
Change view.phtml to:
helper('catalog/output');
$_product = $this->getProduct();
if ( $_product->getAttributeText('which_category') == category_a) {
include('view_cat_a.phtml');
} else {
include('view_cat_b.phtml');
}
When you create a product you can choose the category on the attribute (define them in attribute_set)