The server side push is a script for animating images. It starts with the script name followed by a question mark, and the base part of the image name and the path to it as a parameter, and optionally the number of times to repeat the animation. In short, this looks like:
<IMG SRC="/cgi-bin/nph-spush?<URL path>rot.gif:10"> e.g. for virtual servers: <IMG SRC="/cgi-bin/nph-spush?/images/rot.gif:10"> for ~userid accounts: <IMG SRC="/cgi-bin/nph-spush?~yourid/images/rot.gif:10">This will display the series of images 01rot.gif, 02rot.gif,... up to 99rot.gif (max) one after another and cycle through the complete sequence 10 times. For a never ending display you can set the count to zero. (The default is 1)
You may pause between images by adding another : and the delay in seconds to the end of the URL. The following example will run through the sequence of images once (the default) and pause 1 second between images.
<IMG SRC="/cgi-bin/nph-spush?~yourid/images/rot.gif::1">Notes: The script figures out how many images you have. The animation can be a little jerky due the quirks of communication delays and server loading. The ~yourid/images/rot.gif pathname corresponds to an images subdirectory of your pubhtml directory.