LiveConnect is a feature of web browsers which allows Java applets to communicate with the JavaScript engine in the browser, and JavaScript on the web page to interact with applets. The LiveConnect concept originated in the Netscape web browser, and to this date, Mozilla and Firefox browsers have had the most complete support for LiveConnect features. It has, however, been possible to call between JavaScript and Java in some fashion on all web browsers for a number of years.
http://jdk6.java.net/plugin2/liveconnect/
