The latest version of JavaScript used by both Netscape Navigator 4.x and Microsoft Internet Explorer 4.x includes a C-like switch statement that closely mirrors the SELECT CASE statement available in Visual Basic and VBScript. However, because earlier browsers do not support this statement, any code that uses it will cause errors for many users. Therefore, you should make do with if/then/else except for in particular cases, such as on a corporate intranet, where you can be sure of the browser version being used by your visitors.