Are you using a browser that doesn't support JavaScript?
We use some JavaScript program to make the website more efficient and user friendly. If your browser does not support JavaScript, you can upgrade to a newer browser, such as Microsoft® Internet Explorer 6 or Netscape 6.
Have you disabled JavaScript?
If you have disabled JavaScript, you must re-enable JavaScript to sign in. To enable JavaScript:
Using Internet Explorer 6
  1. On the Tools menu, click Internet Options.
  2. Click the Security tab.
  3. Click Custom Level.
  4. Scroll to Scripting. Under Active scripting, click Enable.
  5. Click OK twice.
Using Netscape 6
  1. On the Edit menu, click Preferences.
  2. Click Advanced.
  3. Select the Enable JavaScript for Navigator check box.
  4. Click OK.
Using another browser
To sign in to Passport, you must use a browser that supports JavaScript. For detailed instructions about how to enable JavaScript, see Help in your browser.

Are you using a pop-up-blocking software?
When you click the icon "add to cart", a small window will pop up and show the item added to your cart. So please set your pop-up-blocking software(if any) to allow our website's pop up window.