The <ISINDEX> element informs the browser that it should allow
the user to search an index by giving keywords. This element has no attributes in
HTML 2.0 and may be placed inside the <BLOCKQUOTE>, <BODY>, <DD>,
<FORM>, <HEAD>, and <LI> elements.
The keyword search box shown below is created by Netscape simply by positioning the
<ISINDEX> tag at this location.
When the user enters a keyword(s) into the box and presses {ENTER}, the browser sends a search string back to a CGI ISINDEX search script. This is only functional if the HTML document which contains the ISINDEX tag was generated by a CGI script in the first place. ISINDEX dates back to the days before forms were part of HTML and is used very rarely today.
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