No Show Other Image In Ps 1.6.1.3

[bagzpain]

Hi

 

i use leotheme clothing on ps 1.6.1.3on localhost, in the demo site when you hover pointer to image of product, the image will change. but in my site, it doesn't happen but the product image turns dissapear.

 

and there is a difference between my site's script and demo site's script

 

in my site, this is the script

<span class="product-additional" data-idproduct="4"></span>

in the demo, this is the script 

<span class="product-additional" data-idproduct="4">
<img class="img-responsive" title="" alt="" src="http://demo4leotheme.com/prestashop/leo_fitness_stone_demo/clothing/174-home_default_clothing/printed-dress.jpg">
</span>

can anyone help me?

 

Thanks in advance and sorry for my bad english