The functionalities that I am looking for in the grid are:
1. Fixed width (columns x rows, images as 200x200 with 20 pixels of space in between each image)
2. Infinite scrolling (loading new new data/images automatically from DB via php/ajax when user reaches the bottom of the page)
3. should be easily integrated with php
4. on hover of an image/product the title and pricetag of the product should be revealed, on click the image will point to a url.