title: How to add custom form before "add to cart" page
body: <p>I am using Magento 1.7. I need to get input from user so how to add custom form for taking input from user.</p>
  <p>Let me explain: when click on any product it display product information. Now there should be a button.On click that button it should show custom form. After submit that form it should redirect to &quot;add to cart&quot; page with all the details of that product and values of custom form fields which is filled by user.</p>
  <p>Is there any extension or any other way to do this?</p>