Web Design Using Slices in Photoshop
When you slice an image, the slice divides an image into smaller images that are shown on a web page using CSS layers, or html table. When you divide the image, you can assign different URL links to create page navigation, or your optimization settings are used to optimize each section of image. You export and optimize a sliced image using the save for web & devices option. Photoshop generates the html code or CSS code that you need to show you sliced image by saving each slice as a separate file. view source