Adding items to cart by size/price
Hi, Can someone tell me how to add items using ecart, php, dreamweaver when there are different sizes and the different sizes have different prices? For example, we sell a shirt that comes in med, large and Xlarge. The med & large sizes cost $29.00, but the XLarge costs $31.00. How could the "add to cart" button be set up so that once XLarge is selected from the pull-down menu (the select list) the price of $31.00 would automatically populate in the shopping cart?
Please help.
Thanks!