Web Site Modification 2

Hello, There are 3 modifications needed on this website: [login to view URL] 1. The first problem is that, at checkout, i don't want the page to refresh at every dropdown selection. If someone wants to order a menu he must choose a garnish, a salad and a sauce. And he can choose them at checkout from dropdowns. For every menu there are 3 dropdowns: garnish, salad and sauce. For example: If one wants to order 5 menus the page refreshes at every dropdown, meaning 15 times(A lot !). An if the client modifies the quantity of products, the page refreses again for each quantity modification and cost recalculation. 2. Some of the Garnishes, Salads and Sauces have diferent prices. I want to be able to give them prices, and when the client selects them from that dropdown, those prices to add up to te total cost. 3. After the client sends the order, an email with the proforma is sent to him and us. I want the text from the proforma to fit on a 8cm wide paper(the text must be max. 7cm) because it is going to be printed automatically on a thermal printer. At this moment all the text fits on 7cm with 1 exception: the text of fields "mesaj" and "adresa livrare" that is inserted by the client before placing the order. I need that the text entered by the client in those 2 fields, to be automatically formatted on the proforma for max. 7cm wide. Please give details about how are you going to solve this 3 points.