JavaScript Image Replacement

Among the various techniques and methods used in web programing there are a few that are of great importance to the overall aspect of a website and must be greatly taken care of in order to keep visitors interested. Image replacement is one of the concerns of web designers and it can be done in many ways, most of which are controversial.

JavaScript image replacement is a method not very popular to many. Usually when one desires to replace a text with an image it is done in the CSS code of the website. The CSS or Cascading Style Sheets are small text files containing specific code that tells the page how to act in the browser, or better said, how to look. It gives the appearance of the page.

Image replacement with JavaScript is done by inserting a script into a CSS file and allowing the changes to take place from there. There are pros and cons to JavaScript image replacement however as with any method of replacement.

The pros of JavaScript image replacement are the simplification of the CSS file with the introduction of a script instead of a Span tag – which is used for styling. The image is accessible to non-image media and it works for elements that are in-line or in block style. The method also has no effect on the web browser, causing zero problems when changing the default one.

The cons of JavaScript image replacement include limited access to the text that is being replaced. The text cannot be resized anymore or maneuvered in any way. Also, the method interferes with the ‘images off.CSS on’ feature and can prove too complex for it to be fast and reliable. There are many things that can go wrong with image replacement using JavaScript, but it all depends on the amount of work one is willing to put into the development of a project.