The applet is embedded in this page. When it has finished loading, it'll launch as a whole new Java window.
Remember that when you load a knot, within the application, it'll take a few seconds to download the knot data from the server.
If it doesn't pop up at all: 1) Check your browser's status bar to see if anything's happening; if so, then wait a bit longer; 2) then try this alternate page.
ALL the Java code used by the applet is COPYRIGHT January 2004 Dan Stowell. All written from scratch in Java 1.4 on a Mac OSX. The TONO algorithm is based on Piot Pieranski's SONO algorithm, as described in various of his publications.