Here you can configure advanced forms of Web content, from simple images and sound clips to more advanced audio/video content.
Web pages are made up of a combination of text and images. Images usually take longer to transfer to your computer than text. To sacrifice images for quicker page loading, you can show pages with no images, or only with images that have already been transferred to your computer (in the cache).
Some images can be animated, and are mostly used for advertisement banners in Web pages. Turning animation off will display only the first image in the series of animation, resulting in a calmer perception of the page.
Some Web pages have video streams and background sound embedded into them. If you find this time-consuming, you can turn them off.
Some Web pages use Java, which is a high-level programming language which makes it possible to create powerful, interactive applications and games on the Web. Opera for Mac uses Macintosh Runtime for Java, which you can download from Apple.
Plug-ins are libraries made by third parties to enable different sorts of advanced Web content such as Shockwave Flash presentations, embedded Quicktime movie files, Adobe PDF documents, RealPlayer media and so on. You have to download and install a plug-in for each type of plug-in content. You can disable plug-ins altogether if you want.
JavaScript is a programming language commonly embedded into the Web page source code, to make Web pages more dynamic. JavaScript is not a clearly defined standard, thus JavaScript content is sometimes poorly implemented. If you are concerned about using JavaScript, you can turn it off, but some Web services may not work as a result.
To be warned about problems with JavaScript on a page, turn on error reporting. This is both useful for people developing in JavaScript, and for people who want to notify Webmasters about problems on sites.
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