When a user tries to type in a number into the quantity field, whether in the cart or on the product groups/product details pages, there is an Ajax Error. Presumably this was known, because the field is set to disabled="disabled" and readonly="readonly" (although this wasn't the correct syntax).

At any rate I have disabled the control to mask the issue temporarily, but would like to know how to get it to work properly when someone enters a value, because they obviously won't want to have to click a button 100 times to get a 100 quantity.

Thanks for any help.