Hi, a couple of times now I've seen these new type of pop-ups on web sites that I would like to know how to make. When you click on an image, the website darkens, a little white window opens and then expands to the size of the image and then the image appears. At the top it says "close X" and when you click "close X" the box closes and the website brightens up again. Does anyone know how to make this happen on a website? Thank you.