Paypal - Add to cart button creation
On website's we've seen a Paypal button - created and delivered from Paypal - that allows a product purchaser to enter the number of items they wish to purchase.
This is entered into a textbox directly above the Paypal button.
As soon as a purchaser enters the quantity they wish to purchase the - Total Amount (i.e. Value of purchase) is calculated internally by the button codespec.
What Paypal seems to do is permit the button creator to embed a - single unit cost price - into the button codespec at creation time.
Then displays a textbox above the button that captures - Quantity Purchased.
The value entered into the textbox is then multiplied by the - Unit Price - embedded into the button codespec.
This value is then returned to Paypal as the amount to be paid by the purchaser.
Please take a look at the attached image, which indicates what we are trying to achieve.
This type of - Add to Cart - button can be created via Paypal's button creation webpage.
We really want to know, step by step, how to create such a button using Paypal's button creation webpage.