AJAX is a cross-platform technique that can be use on different operating system and web application based on JavaScript and DOM. It is a powerful approach of web application technique using client-side scripting to exchange data with the web server. This means that with AJAX, web pages increases interactivity and faster responsiveness of user interface by having an independent communication with the server. Gone are the traditional ways of web browsing whereby a new page communicates with each user's request. This creates dynamic web application user interface that renders effective usability of every desktop applications. AJAX primary purpose is to increase the web page's interactivity, speed, functionality, and usability.

Ajax, by definition, is not technology. In fact, it is an application of several technologies. Ajax incorporates several existing web application like XHTML and CSS for standard-based presentation; the Document Object Model for dynamic display and interaction; XML and XSLT for data interchange between the server and the client; the XMLHttpRequest to exchange asynchronous data with the web server; and the use of JavaScript as the core code for running AJAX application.

To understand AJAX, first we must know how the traditional web application works. The classic web interface trigger an HTTP request back to web server. The server then process and retrieve data before returning an HTML page to the users. This process as a model for hypertext medium makes technical sense. But as web application evolves this process does not make the user interface more interactive and practical.

AJAX, on the other hand, eliminates this problem. AJAX speed up the loading of any web application with the use of intermediary between the user and the server called AJAX engine. This adding of another layer application of eliminates the start-stop-start-stop nature on the web. The browser loads an AJAX engine at the start of session.

The AJAX engine allows the user interface and the application to interchange data asynchronously-independent of the communication to the server. So the interaction between the user and the web never slows down, no point of waiting for the server to do something.

AJAX is a powerful technique that grows exceedingly as web application. That is, AJAX is now part of the guiding principle as web 2.0 flourishes and become a practical reality. With the power of AJAX, many of the business and marketing web site are integrated with AJAX application server platform now. Most of the major products of Google such as Gmail, Google Maps, and Google Suggest are employing AJAX application. Other web services like the photo-sharing application Flickr, Amazon's A9.com, and the new Yahoo! maps depends on AJAX. The application of AJAX comes from simple function to the most complex program like Google Maps.

There are a number of different browsers that you must compensate for when designing your webpage's in any format (CSS, tables etc.), some of the most common browsers are : Internet Explorer 6/ 7, Firefox and Safari. The main issues that arise with CSS design is that all browsers interpret CSS differently, for example Firefox does not understand some of the CSS commands that Internet Explorer does and vice a versa.

One of the main issues I have found when designing with CSS is a problem with margins in Internet Explorer 6. I found that when using a float on a div tag that also had a margin set, the margin would actually double and then knock the whole pages layout out. After numerous late nights and an insane amount of coffee I finally found a solution to this double margin bug. By inserting a simple line of code the double margin no longer double ! That solution is as follows, by adding this line of code to your CSS div tag 'display: inline'.

Another problem I have found with CSS in Internet Explorer 6 is a problem when trying to define a div tag that has a smaller size than the base font size. This problem again can be fixed with a simple line of code this time all we need to add is the following line of code to the div tag: 'font-size:0px'. There is also another solution to this problem that should have the same effect, because the div tag auto stretches to compensate for content overflow adding 'overflow: hidden' should also resolve the problem.

Unfortunately I have been unable to cover all of the cross browser issues that you may experience when designing with CSS, but most of the problems that you may encounter can be resolved pretty easily with simple trial and error. Happy designing!

This is a question you will have to address. Many folks just a build a website but do not think out why they are really doing it. As a result they don't take it seriously and therefore they do not get serious results. This makes logical sense right?

A website in and of itself means nothing unless it has visitors and achieves a certain objective. So you have to be clear what you want to achieve as this will help you focus on your research and build a site that can achieve your objective. Quality research will help you build a quality website.

To build a business online you are going to have to build a relationship with your site visitors. You will need to show them how to connect the dots and you can only do this by providing valuable content that is benefit driven.

Furthermore you are going to have to show them solid evidence of how your product or service can help them achieve results. Connecting the dots means moving them closer to their outcome. Once they can follow this and see how it will work for them you will naturally build credibility which will result in you having a profitable website.

As mentioned when you build your site you want to clearly have your visitor's objectives in mind so that you can address their concerns and overcome their objections. If you can help them achieve their goals it will be a win win situation for all parties concerned.