insert product quantity of cart insto the attributes in prestashop 1.5.4.1

insert product quantity of cart insto the attributes in prestashop 1.5.4.1

I want to insert the number of products you want to buy the customer
within subject design attributes but when inserting it does not work, only
grabs 1 product, as I have to do to make functions thanks![enter image
description here][1]
http://www.entrepaginas.es/images/sabor.jpg this is the format

this is the code product.tpl do not allow in the post
http://www.entrepaginas.es/images/codigo.html