Jquery Dynamic Sliding Boxes

I need a modified version of this sliding boxes plugin: [login to view URL] I will be using this on a page that will be populated via CMS and I need the sliding boxes to be able to adapt to different image sizes. The sliding pane will always come from the top and slide down covering 100% of the image. I need the script to detect the size of the image, and match the cover to that size. So I could have one image 100px x 300px and one image will be 234px x 678px and in both cases onhover will cover both boxes 100% in both directions. Feel free to message me if you need further clarification. Thanks!