add small images for product listing


i am new to cs-cart and have finished my data script to fill the store nearly.

i fill cscart_product_images and cscart_product_images_links to add an image to a product. this works fine. i can see the product in the store. i can see it in the product lsiting (category) as well. the problem is that the browser has to resize the picture. this needs a lot of power.

this i like to know if i can add an smaller image to a product, which will be show in the listing, with the aim that the browser do not has to resize it.

how can i do it? maybe a second image in cscart_product_images_links with annother type? i could solve it in the admin and than look the database how to do it.

i would be happy of anybody has an idea.