Javascript errors

Hi, i have just realised that the quantity selector and the cart button don't work in my site's search results page. I thought that maybe this is due to the search extension but it happens too with the results page returned from using the filters in the product list. My template support tell me it's because your megamenu has many javascript errors which are causing this malfunction.

You can see it here

goo.gl/rgBP7d

and here

goo.gl/RNIJEU

Would you be so kind to look into this?

I am using VM 2.6 and Joomla 2.5

Kind regards.

Dear brionny33.
Thanhks you for using product our.
I think, it don't correlate to cart button. You can give me your account of admin via private messages. I will check it.
Best Regards,
Huyen Tran

Details sent, thanks

Dear brionny33.
I checked megamenu for virtuemart on your site, when you Publish or Unpublish my product. cart button works same. The problem don't cause of My product.
You can checked it.
Please view this video:

Best Regards,
Huyen Tran

I see, thank you for looknig into it Huyen

Dear brionny33.
Thanks your feedback.
I will close this topic. You can go back when have other question.
I feel happy when support for you
Best Regards,
Huyen Tran