By default calling slideviewer.cgi by itself will display the slideshow selection form. There are a number of parameters you can parse to the script. This is particularly useful for sites with multiple users running the same script with their own setup. If you don't specify one, the default will be used. This can be used for continious shows.
Values are forward and backward .
This can be useful if you want to jump to a slide in the middle of the show. This can be used to set an appropriate scale based on screen resolution. A value of 0 is normal size, negative numbers reduce the image size and positive numbers increase the image size. Values are enlarge and reduce . If you don't specify one, the default design file will be used.