Professional JavaScript For Web Developers

Chapter 18
If there is no registered plugin for the MIME type, the browser may (depending on which one you are
using) offer to install the correct plugin for the file. Many browsers also look for the pluginspage
attribute, which is an unofficial attribute of (it doesn’t exist in the HTML specification).
This attribute specifies where to find the plugin for the embedded object if it isn’t already on the user’s
machine. Example:
Including parameters
Sometimes an object requires additional parameters before it can start running. To specify parameters for
an embedded object, use the element with its name and value attributes:
Each object can have any number of parameters. Including parameters that aren’t necessary doesn’t
have any negative effect.
Netscape 4.x
The old Netscape 4.x browsers don’t support the element, so you use the old Netscape proprietary
element. The element accepts most of the same attributes as
(indeed, was modeled after ), except the src attribute is used instead of data:
As you can see, this approach is very similar to using . The problem is that newer browsers
don’t support this element (it has officially been deprecated). So if you plan on supporting Netscape 4.x,
the preferred solution is to use with an element inside of it, such as in the following:
Using this approach, the newer browsers ignore the element and use to embed
the file; Netscape 4.x ignores and uses to embed the file.
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