Add shopping cart feature to existing website.

The existing website sell baby carrying and baby related items. The website uses paypal for payment. There are not too many different items for sale, however the choices for each item can be many, ie: types of materials, colours, patterns, extras etc. I do not want to have to make buyers create accounts in order to buy items, I want buyers to visit pages, add items to buy, then process the order using paypal. I want a very simple secure administration built into the website. I want all images for items resized automatically after uploading. I would like the item images to be displayed one size, but if clicked on during "item detail" then a new window would open with a larger image if possible. Items on sale pages should display at all times but with an "out of stock" notice if they have been sold, so that visitors can still see what items are for sale and how many i have in stock. The shop must fit in with the existing website style, colours etc. I want it to be able to display items from the shop categories on different pages throughout the site, if the item is clicked on then the visitor is sent to the shopping pages for more details etc All shop contents will need to display images for products. I am sure you get an idea from this poor description but if you need further information, please ask. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform unix server, php & mysql