JavaScript is a special type of computer language that can be interpreted by a Web browsing program in order to enhance the content on a Web site. JavaScript is used to make interactive menus that fade in and out, provide video control, make real-time stock tickers, provide real-time news headlines, and much more.

 

Be cautious when Internet Explorer detects possibly bad scripts or procedures in a JavaScript file that it does not recognize. Viruses and spyware are sometimes hidden inside JavaScript code or disguise themselves as a JavaScript file which could damage the data on your computer. Internet Explorer will always alert you when it finds a possible security threat, so when in doubt, don't visit that particular Web site unless you are sure that the content contained in the Web site is safe.