Modal Box Image Handler

Hello,

I have Hikashop Essential installed and require some guidance as to where to modify the image modal popup code.

Instead of the image modal being sent the variables

rel="{handler: 'iframe', size: {x: 420, y: 400}}"

I would like to send it:

rel="{handler: 'image'}"

The reason for this is that when the modal handler is set to image it resizes the modal window to fit the screen size and appropriately resizes the image to fit..

The website to be modified is located here:

hairificwigs.com.au/index.php/online-shop/hats

Thanks for your help

Kind Regards
Matt