Magento validation problem

Question

i dont know whether am only getting this problem or some one else.

When entering string as input in the quantity filed of addtocart input box it never throws error and it takes as 1. how can i validate it. bcz they already made onclick function on addtocart function.

Please help me to solve this

Answer 1

There is a setting at a product level which is called "Maximum Qty Allowed in Shopping Cart" that may be set to one.