I'd like to make a link to a product info page and have an attribute selected. The shopping cart does exactly this when attributes are selected:
products_id=28:060d12b3f0c4c51e8f3c91ebc9ec776b for this attribute
products_id=28:a47455e1f1876e14a92bee8068b809ae for that one
I'm working on a gift registry and don't just want the link from the registry to be to the item but have the attribute selected. It's obviously possible (shopping cart does it) but how/where is that number after the colon generated?
Thanks
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