VBScript

VBScript is a subset of Visual Basic and, as such, will look familiar to you if you have ever used Visual Basic or Visual Basic for Applications (VBA). VBScript can be implemented in two ways, using either a server-side script or a client-side script. Because VBScript was specifically designed to work in browsers, it doesn't include features typically outside the scope of scripting, such as file access and printing. VBScript brings active scripting to a variety of environments, including Web client scripting in Microsoft Internet Explorer (version 3.0 or later) and Web server scripting in Microsoft Internet Information Server (version 3.0 or later). For considerations when selecting a scripting language, see Choosing a Scripting Language.

VBScript Features

Because the CML application is always implemented using Internet Explorer, the following factors enter into the decision to write individual scripts in VBScript:

• If you are writing server script, error handling is particularly important because the script runs unattended. VBScript includes the On Error Resume Next statement for handling exceptions.
• VBScript includes functions that make it easy to format date, number, and currency data.
• VBScript provides easier event handling in Internet Explorer. As in Visual Basic, VBScript allows you to create an "implicit" event handler by simply naming a function with the syntax object_event, where object is the object name and event is the name of the event.
• VBScript is not case-sensitive.