/usr/local/php/Cart.php
#@
#@ Class Cart - e-commerce system shopping cart. by john weider,
#@
#@ var shop_name - Store Name.
#@ var paypal_business - Paypal Payment account, for recieving payments.
#@ var address - Address to send check or mony order payments.
#@ var order_email - email address to send order notifications to.
#@
#@ function add(prdno,qty) - add qty of prdno to cart.
#@
#@
#@ function display_tiny() - display a small summary of the cart contents.
#@
#@
#@ function display(style) - display cart (style is not yet implemented)
#@
#@
#@ checkout() - allow customer to purchase contents of cart.
#@
#@
#@ tax(amt,state) - overide to calculate tax. (default NY 8%)
#@
#@
#@ shipping_charge(weight) - overide to calculate shipping (default weight based)
#@
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