It has been bothering me that the plugin required you to specify the dimensions of the image. The reason I wrote it that way was because the image wasn't loaded yet when it was added to the page, so we didn't have the dimensions. I have finally had the opportunity to enhance it to calculate those dimensions for you whether the image was preloaded or not. The fix was to attach the javascript that gets the image size in a "load" event handler on the new image. Since it is added to the DOM every time, it will always be fired. Enjoy the new version and let me know if you have any feature requests or bugs!