Please do not confuse Java with JavaScript.
Java and JavaScript are not the same, do not mix them up. Java is a complete
compiled language developed by Sun Microsystems, its use and the clone
language developed by MS is not now included in the latest releases of XP.
Something about copyright infringement by MS. Java Applets are in effect
executable programs. These small programs rely on the JVM and your OS to
work. A malicious Java Applet can take over your computer. It is a good idea
to turn off Java, or only allow Java on trusted sites.
Now, JavaScript is a text language developed by Netscape. JavaScript doesn't
rely on any OS to operate. The JavaScript text code is read by the browser.
JavaScript is very limited, it cannot get your email address, or personal
information about you unless you give it in a form. JavaScript can open
windows and control window focus. JavaScript can create mouse-over triggered
image changes, form actions, and much more. JavaScript is an integral part
of many websites. It can be annoying, but in most instances it is helpful
and enhances the internet experience.
Jeff