Happy network technology used by the web

Happy to use what network a large number of web technology, web2.0?
Do not have to be able to refresh the page to change the dynamic, who can tell us.
What is more, actually, I have to text messages, the focus will be automatically moved to the Input dialog box, so the cattle ~~~~~

from its Web site, is to use the PHP language, PHP is an acronym for Hypertext Preprocessor, the Chinese translation for Hypertext Pre-processor, a Web site commonly used languages.
Web2.0 is not a “web technology”, but a page, in the form of Web site so that people In order to be distinguished from the older generation sites before they make such a statement.The older generation of so-called Web site, which is Web1.0, his main characteristics of a Web site also said that only a few participants, such as the station master and the only administrator, and the great Some people just spectators, the user, for example, traditional search engines is the type of Web site.Web2.0 However, the introduction of the users in the form of participation, such as blog, podcast, wiki, community, friends, and other types of sites, users are no longer just Watch, but can participate in the Web site of a number of activities for the increase in the content of the site.
Happy network is a class of the web2.0 social, making friends site.
As you said, do not have to be able to refresh the page to change the dynamic, the focus of Will be automatically moved to the dialog box input, and so on, the only language PHP application, to master the language page, which is not very difficult things.