<ISINDEX> | NN all IE all HTML all
<ISINDEX> | End Tag: Forbidden
The ISINDEX element is a longtime holdover from the earliest days of HTML and is deprecated in HTML 4.0 in favor of the text INPUT element. The ISINDEX element tag belongs in the HEAD element. In modern browsers, it is rendered as a simple text field between two HR elements. When a user types text into the field and presses the Enter/Return key, the content of the field is URL encoded (with + symbols substituted for spaces) and sent to the server with the URL of the current document. A CGI program on the server must know how to process this URL and return HTML for display in the current window or frame.
Example
    <HEAD>
    <ISINDEX PROMPT="Enter a search string:">
    </HEAD>
Object Model Reference
IE | [window.]document.all.elementID

PROMPT | NN all IE all HTML <4
PROMPT="message" | Optional
This attribute lets you assign the prompt message that appears with the element.
Example
    <ISINDEX PROMPT="Enter a search string:">
Value Any quoted string.
Default | None.