<ISINDEX> | NN all IE all HTML all
<ISINDEX> | HTML End Tag: Forbidden
The isindex element is a longtime holdover from the earliest days of HTML and is deprecated in HTML 4 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
    [window.]document.getElementById(elementID)
Element-Specific Attributes
prompt
Element-Specific Event Handler Attributes
None.

lang | NN 3 IE 4 HTML 4
lang="languageCode" | Optional
The language being used for the element's attribute values and content. A browser can use this information to assist in proper rendering of content with respect to details such as treatment of ligatures (when supported by a particular font or required by a written language), quotation marks, and hyphenation. Other applications and search engines might use this information to aid the selection of spell-checking dictionaries and the creation of indices.
Example
    <SPAN lang="de">Deutsche Bundesbahn</SPAN>
Value
Case-insensitive language code.
Default
Browser default.
Object Model Reference
    [window.]document.getElementById(elementID).lang

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.