[SOLVED] Multiple SKU's, weights and prices

-- url of the page with the problem -- : walldorff.be/ybody/yg-black
-- HikaShop version -- : Business 2.6.0
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.4.43
-- Browser(s) name and version -- : Chrome 47.0.2526.73 m / Firefox 42.0

PRODUCTS (simplified):

--------------------------------------------------
SKU	category	Name		Price
--------------------------------------------------
01-10	black	Product_black_10_gram	1,60
01-20	black	Product_black_20_gram	2,75
01-50	black	Product_black_50_gram	4,35
02-10	bronze	Product_bronze_10_gram	1,60
02-20	bronze	Product_bronze_20_gram	2,75
02-50	bronze	Product_bronze_50_gram	4,35

• 1 record for "black" with 3 variants/characteristics, each with different SKU, weight and price.
• 1 record for "bronze" with 3 variants/characteristics, each with different SKU, weight and price.

So I tried several things.

1. Characteristics.
See images 1.xxx.jpg to 5.xxx.jpg.

1. Made new characteristics.
2. Put those into the product.
3. The Variants tab does not work. I made the adjustment (deletion) in show.php.
4. View the product in the category view: button: Choose options.
5. Click on Choose options: there are no options.

1. Made new product, no price, only the options - which are full blown products.
2. View the product in the category view: button: Choose options.
3. Click on Choose options:
   - I get dropdowns of every option instead of a list. "Characteristics selection method" is set to "List".
   - Cannot choose different quantity per option.
   - The "main" (free) product appears in the view AND in the cart.

New login posted in contact form.

There's an error in hikashop.js, line 670:

var l = tabs[k].childNodes[0], lr = l.getAttribute('rel');

Uncaught TypeError: Object #<Text> has no method 'getAttribute'

Thank you Nicolas! Egg on my face because I messed up. But I'm glad it's working.