AJAX or Asynchronous JavaScript and XML

Many active web applications are created by using Asynchronous JavaScript and XML. This is done by combining a variety of applications, such as DOM, CSS, JavaScript, XML and XMLHttpRequests, among others. The Ajax program works to synchronize the web user's actions and perform their needed requests. The actions are completed in the browser window that the user is currently on, instead of the individual waiting for a new page to load. This allows the user to perform their requests in a shorter period of time and with less hassle.

Ajax operates by the use of an engine acting as a middle man between a user's browser window and the Internet server from which the user is requesting information. Instead of loading a new page or letting a new window open, the Asynchronous JavaScript and XML application initiates its own engine to display the image seen by the user. JavaScript delivers the messages from the user's interactions with the webpage, to the engine of the application. The Asynchronous JavaScript and XML engine is what makes the application work instantly without the need for new pages or browser windows to load.

Ajax is now used by a multitude of websites in order to offer services to website users quickly and efficiently. One example is the website Google Maps. By using Asynchronous JavaScript, the maps and other relevant information load in real time. This action alleviates the information from having to open in a new browser window and allows it to load much more quickly. This ability is greatly appreciated by most website users, as they can gain their information quickly and easily. Today, Asynchronous JavaScript works with most web browsers, but this was not always the case. At one time, it could only be used by Internet Explorer.

It took some tweaking to allow Ajax scripting to work with other web browsers besides Internet Explorer and on other operating systems besides Microsoft Windows. Once the application was expanded for use to other browsers, it also was designed so that a new download did not have to be prompted in order for the application to be used. This was done by writing the application into HTML or JavaScript code. With these tweaking techniques came the ability for more individuals to use the application.

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