<script> element. This element was created by Netscape and first implemented in Netscape Navigator 2. It was later added to the formal HTML specification. HTML 4.01 defines the following five attributes for the
charset — Optional. The character set of the code specified using the
src attribute. This attribute is rarely used, because most browsers don't honor its value.
defer — Optional. Indicates that the execution of the script can safely be deferred until after the document's content has been completely parsed and displayed.
language — Deprecated. Originally indicated the scripting language being used by the code block (such as
"vbscript"). Most browsers ignore this attribute; it should not be used.
src — Optional. Indicates an external file that contains code to be executed.
type — Required. ...