I have a shopping website www.eurolabels.co.uk, and I would like to add google+ button to all the mail pages as well as the products. So my doubt is that in the main category page if add google+ button to the main category and the also to the products (near to the product image), how can Google identify which button is for the page and which one is for the product? is there any additional code/url should be added in any of the button? please give me your suggestions