Using the embed Tag

http://java.sun.com/docs/books/tutorial/deployment/applet/embedtag.html

You use the embed tag to deploy applets that are to be used only with the Mozilla family of browsers.

Following is an example of the embed tag:

<embed code="Applet1.class"
  width="200" height="200"
  type="application/x-java-applet;version=1.6.0"
  pluginspage="http://java.sun.com/javase/downloads"/>

The type attribute can have one of two forms:

• type="application/x-java-applet;version=1.6.0"

  With this form, the highest installed JRE that supports the MIME type

  application/x-java-applet;version=1.6.0 is invoked to run the applet. If a JRE with a version number equal to or greater than the version number specified is installed locally, then that JRE is invoked. Otherwise the user is directed to the URL specified as the value of the pluginspage attribute and prompted to download and install the required JRE. 

  type="application/x-java-applet;jpi-version=1.6.0_01

  With this form, a JRE with the exact version given by the the value of jpi-version (in this example, 1.6.0_01) is invoked to run the applet. Otherwise the user is directed to the URL specified as the value of the pluginspage attribute and prompted to download and install the required JRE.