With Microsoft® Internet Explorer, you can view the page produced by the following HTML code. If you click the button on the page, you see VBScript in action.
<HTML>
<HEAD><TITLE>A Simple First Page</TITLE>
<SCRIPT LANGUAGE="VBScript">
<!--
Sub Button1_OnClick
MsgBox "Mirabile visu."
End Sub
-->
</SCRIPT>
</HEAD>
<BODY>
<H3>A Simple First Page</H3><HR>
<FORM><INPUT NAME="Button1" TYPE="BUTTON" VALUE="Click Here"></FORM>
</BODY>
</HTML>
The result is a little underwhelming: a dialog box displays a Latin phrase ("Wonderful to behold"). However, there's quite a bit going on.
When Internet Explorer reads the page, it finds the <SCRIPT> tags, recognizes there is a piece of VBScript code, and saves the code. When you click the button, Internet Explorer makes the connection between the button and the code, and runs the procedure.
The Sub procedure in the <SCRIPT> tags is an event procedure. There are two parts to the procedure name: the name of the button, Button1 (from the NAME attribute in the <INPUT> tag), and an event name, OnClick. The two names are joined by an underscore(_). Any time the button is clicked, Internet Explorer looks for and runs the corresponding event procedure, Button1_OnClick.
Internet Explorer defines the events available for form controls in the Internet Explorer Scripting Object Model documentation, which can be found on the Microsoft® Web site (http://www.microsoft.com).
Pages can use combinations of controls and procedures, too. VBScript and Forms shows some simple interactions between controls.
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