Web Building introduction

Every Web developer has to know the building blocks of the Web:

The future of the Web HTML The use of CSS (style sheets) XHTML XML and XSLT Client side scripting Server side scripting Managing data with SQL Web directory PHP Flash SEO Web programing What Will the Future Bring? One important thing to know is that the functionality of Web Sites will change very drastically. We will see a huge shift from sites displaying "static content" to data driven sites delivering "dynamic content". We will also see new browsers, like the browsers found in mobile devices. We will also see more use of XML for transmitting data between servers, or between servers and browsers. HTML HTML is the language of the Web, and every Web developer should have a basic understanding of it. HTML 4.01 is an important Web standard. and very different from HTML 3.2. When tags like and color attributes were added to HTML 3.2, it started a developer's nightmare. Development of web sites where font information must be added to every single Web page is a long and expensive pain. With HTML 4.01 all formatting can be moved out of the HTML document and into a separate style sheet. HTML 4.01 is also important because XHTML 1.0 (the latest HTML standard) is HTML 4.01 "reformulated" as an XML application. HTML 4.01 is also important because XHTML 1.0 is HTML 4.01 "reformulated" as an XML application. Cascading Style Sheets (CSS) Styles define how HTML elements are displayed, just like the font tag in HTML 4 .01tyles are normally saved in files external to HTML documents. External style sheets enable you to change the appearance and layout of all the pages in your Web, just by editing a single CSS document. If you have ever tried changing something like the font or color of all the headings in all your Web pages, you will understand how CSS can save you a lot of work. XHTML - The Future of HTML XHTML stands for Extensible HyperText Markup Language. XHTML 1.0 is now the latest HTML standard from W3C. It became an official Recommendation January 26, 2000. A W3C Recommendation means that the specification is stable and that the specification is now a Web standard.XHTML is a reformulation of HTML 4.01 in XML and can be put to immediate use with existing browsers by following a few simple guidelines. XML - A Tool for Describing Data The Extensible Markup Language (XML) is NOT a replacement for HTML. In future Web development, XML will be used to describe and carry the data, while HTML will be used to display the data. Our best description of XML is as a cross-platform, software- and hardware-independent tool for storing and transmitting information. We believe that XML is as important to the Web as HTML was to the foundation of the Web and that XML will be the most common tool for all data manipulation and data transmission. XSLT - A Tool for Transforming Data XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML. Future Web sites will have to deliver data in different formats, to different browsers, and to other Web servers. To transform XML data into different formats, XSLT is the new W3C standard. XSLT can transform an XML file into a format that is recognizable to a browser. One such format is HTML. Another format is WML - the mark-up language used in many handheld devices. Client-Side Scripting Client-side scripting is about "programming" the behavior of an Internet browser. To be able to deliver more dynamic web site content, you should teach yourself JavaScript: JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers, but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets" of code into their HTML pages. JavaScript can put dynamic text into an HTML page - A JavaScript statement like this: document.write(" " + name + " ") can write a variable text into an HTML page. JavaScript can react to events - A JavaScript can be set to execute when something happens, like when a page has finished loading or when a user clicks on an HTML element. JavaScript can read and write HTML elements - A JavaScript can read and change the content of an HTML element. JavaScript can be used to validate data - A JavaScript can be used to validate form data before it is submitted to a server, this will save the server from extra processing. Web Directory: Web directory, internet link index of quality family friendly websites. Personal Directory, Article directory, Top Lists Directories, Rss feeds Directories, Business Directory, Local Directories, Directory Submission Service, Reciprocal Web Directories, Search Engines, Directory Software. SEO: (Search Engine Optimization) Search engine optimization (SEO) is the process of improving the visibility of a web site or a web page in search engines via the "natural" or un-paid ("organic" or "algorithmic") search results. Other forms of search engine marketing (SEM) target paid listings. In general, the earlier , and more frequently a site appears in the search results list, the more visitors it will receive from the search engine. SEO may target different kinds of search, including image search, local search, video search and industry-specific vertical search engines. This gives a web site web presence.