Create a simple image based fabric selection tool/script/application for my website

I need a fabric selection tool made for my website that will allow my customers to visually see what a particular quilt pattern would look like with a variety of fabrics. The tool should have a center panel that holds the selected pattern image (max image size 1500px x 1500px). It should have scrolling pattern thumbnails on the left from which my customers can choose a pattern. It should have scrolling fabric thumbnails on the right from which they can choose a fabric. When a fabric is chosen it should appear in the center panel on the pattern that was previously selected. (see attached graphic - [login to view URL] for a mock-up) This tool must be super easy for my customers to use and it also should be quick and easy for me to add to or remove patterns and/or fabric choices from the code.