The defaultClientScript property sets either JavaScript (default) or VBScript as the scripting language used on the current page.
To set the default value for the defaultClientScript property
To adjust the value of the defaultClientScript property while editing a Web page
If you adjust the defaultClientScript property to a value different than the default, a META NAME=vs_defaultClientScript
tag is inserted into the <HEAD></HEAD>
section of your page. For instance, if you select VBScript, the following tag is added:
<META NAME=vs_defaultClientScript content="VBScript">.
Note You can also specify the scripting language for a particular SCRIPT by including a type
(HTML 4.0 and above) or language
(HTML 3.2) attribute in the <SCRIPT></SCRIPT> tag.
<SCRIPT TYPE="text/javascript" LANGUAGE="javascript">