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The Text Replacement technique that I present today is in some respects, very interesting. Unlike the classical image using CSS to replace operation , this technique uses a Flash movie to overwrite the titles of our site. Despite being a little more complex, requiring the creation of a Flash movie and the use of JavaScript, produces a number of considerable advantages:

• Keeps the 'accessibility to the site using a True-Unobtrusive Javascript- so that crawlers and spiders continue to see the page as simple and correct HTML
• It does not require the creation of n by n image titles. Only one movie to replace all the titles of our site, with a considerable saving in terms of the Download
• Also allows you to create simple titles but not normally used fonts on the Web
• Text can be rendered in HTML, thanks to the features of Flash
• The text is selectable
• As you can insert a Flash movie and interactive animations of any kind

You will note, also, that in this procedure are practically no CSS considered!

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The correct way to insert a title in graphics on a Web page is to replace operation with style sheets (see Progressive Enhancement in Accessibility and Usability: unobtrusive JavaScript ). This technique allows you to make content more accessible site regardless of the display graphics set by style sheets. Also, crawlers and spiders, have a correct reading of HTML, ignoring the replacement graphics offer the end user. Insert a picture directly (TAG img ), in fact, make the title text inaccessible to ordinary readers ASCII (crawlers, spiders, blog plugins, screen readers, etc ...).

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Allowing users to interact with a Web page in recent years has produced a significant increase in the use of client-side scripting: Javascript code can respond in real time and manipulate a variety of information. The Web2.0 is the ultimate expression of this capacity for interaction, in which the end user - the user-actively participates in the construction and to 'evolution of the Web site, interacting with it and helping yourself. Is referred to as User-Generated Content (UGC or - user-generated content) that sees the "navigator" definitely not passive!

To achieve this interaction, thus allowing the end user to add his contribution, we developed a series of techniques that have changed the appearance and behavior of Web pages (static so far, but now similar to the traditional applications of Desktop) in recent years. Change the content of a page, send files, giving their vote to a video or a document, register or change their personal data, are just some of the richest operations in many services (2.0 beta) on the Web

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