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8.6 HTML Plug-ins

Plug-ins are computer programs that extend the standard functionality of the browser.

Plug-ins

Plug-ins were designed to be used for many different purposes:

  • To run Java applets
  • To run Microsoft ActiveX controls
  • To display Flash movies
  • To display maps
  • To scan for viruses
  • To verify a bank id
  • Warning !
  • Most browsers no longer support Java Applets and Plug-ins.
  • ActiveX controls are no longer supported in any browsers.
  • The support for Shockwave Flash has also been turned off in modern browsers.

The <object> Element

  • The <object> element is supported by all browsers.
  • The <object> element defines an embedded object within an HTML document.
  • It was designed to embed plug-ins (like Java applets, PDF readers, and Flash Players) in web pages, but can also be used to include HTML in HTML:
Example 1:The object element
 <object width="100%" height="500px" data="snippet.html"></object>

Or images if you like:

Example 2: HTML image as an object
 <object data="audi.jpeg"></object>

The <embed> Element

  • The <embed> element is supported in all major browsers.
  • The <embed> element also defines an embedded object within an HTML document.
  • Web browsers have supported the <embed> element for a long time. However, it has not been a part of the HTML specification before HTML5.
Example 3: The embed element
<embed src="audi.jpeg">

Note that the <embed> element does not have a closing tag. It can not contain alternative text.

The <embed> element can also be used to include HTML in HTML:

Example 4: HTML page as an embed object 
<embed width="100%" height="500px" src="snippet.html">

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Module 8: HTML Graphics and Media