Product Details php file

Dear Sirs and Madams!

In our test webshop, I select some product and I get product details for selected item. Now, for every attribute the image shows, which is all ok. But, I have to make some cosmetic and logic modifications and my question is, which php file is responsible for showing product details. This is a file that I have to modify.

Sincerely,
Marko

You are most likely looking for tpl_product_info_display.php but the actual wording on the page comes from your database. What is it you want to do?

Thanks for your reply, the file is right! I've removed some functionality, but now I have challenging issue: Let's say, I (as customer) click on product, that can be shipped ni 1L bottle, 4L bottle, 100L barrel and 200L barrel. These are all attribute values for product attribute named (for example) Packaging. So:
Product A has attribute named Packaging with values 1L, 4L, 100L, 200L. The attribute is set as Combobox, so the customer can click on wished packaging. Now, how do I add action handling for this attribute combobox? If customer, for instance, selects 100L packaging, I would like to show 100L barrel instead of main product picture with recalculated final price. Where do add action handling?

Sincerely,
Marko

There are these:

http://www.zen-cart.com/downloads.php?do=file&id=699
http://www.zen-cart.com/downloads.php?do=file&id=1301

I haven't used either, and you'll have to test them, preferably on a separate Zencart test site, to see if they work with Zencart version 1.5 and if they work together.

Thanks for links, but I have to do it myself. In php file, I found section that fills combobox with attribute values, but where do I add "onchange" modifier to combobox? In which file?

Since the Dynamic Price Updater does at least some of what you want, I suggest you look at how that works for the onchange handling. Ditto for the Attribute Image mod.