The Use Of JavaScript In Web Design

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April 14th, 2010 by James

JavaScript is a programming language used on web pages to carry out a variety of actions. Sometimes a web design calls for interactive elements. These generally comprise such commonly used features as images which change when the mouse moves over them. JavaScript essentially provides a reaction when a visitor does something specific.

Some sites display the date, time and a suitable welcome message such as ‘Good morning’ using JavaScript. It is also the programming language behind pop-up windows. JavaScript can be used to perform calculations or to generate random content, enabling images on a page to be rotated. It is useful for creating forms, shifting the focus on to the first text field and saving visitors the trouble of clicking on it. It can then be employed to validate any text entered, providing error messages when a box is left empty or filled in incorrectly. Another handy JavaScript option for form creation is the ability to disable a box or button unless another necessary action has been carried out beforehand.

JavaScript can be used for breadcrumb navigation menus which tell visitors exactly where they are, facilitating the process of moving around a site. Many scripts have already been written and are freely available on the Web so it may not be necessary to write one from scratch. For features that are essential in order for visitors to use a site JavaScript should not be used as it could be disabled in some browsers. At Click Consult our web development team is experienced in using JavaScript in many varying forms of web marketing.

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