Magento Ajax Popup by Hussey Codings is not working in home page. But working in other pages fine.

[eraatest]

We have upgraded magento site from version 1.7 to 1.9. Magento Ajax Popup by Hussey Codings is not working in home page. But working in other pages fine.

Inner pages like category listing page and product view page it is working fine. But the add to cart is not working in homepage only.

The code for the add to cart button is coming like the following:

<button class="button btn-cart" onclick="setLocation('http://www.akku-laden24.de/Magento_New_Upgrade/checkout/cart/add/uenc/aHR0cDovL3d3dy5ha2t1LWxhZGVuMj..." title="In den Warenkorb" type="button">

And it redirects to empty cart page. 

Any solution for this problem?

[FMEExtensions]

Are you looking for functionality similar to this AJAX Add to Cart FME Magento Module? The popup in this plugin is responsive, the contents are also customizable and a lot more included in the extension.