<p style=\"line-height: 1.3em; margin: 0px 0px 1em; padding: 0px; color: #003366; font-family: Arial, Helvetica, sans-serif; font-size: 14px;\">Then the document&nbsp;<code style=\"font-family: \'Courier New\', Courier, monospace; font-size: 1em;\">xxxx.ja.jis</code>&nbsp;will be treated as being a Japanese document whose charset is&nbsp;<code style=\"font-family: \'Courier New\', Courier, monospace; font-size: 1em;\">ISO-2022-JP</code>&nbsp;(as will the document&nbsp;<code style=\"font-family: \'Courier New\', Courier, monospace; font-size: 1em;\">xxxx.jis.ja</code>). The<code class=\"directive\" style=\"font-family: \'Courier New\', Courier, monospace; font-size: 1em; color: #287f00; background-color: inherit;\">AddCharset</code>&nbsp;directive is useful for both to inform the client about the character encoding of the document so that the document can be interpreted and displayed appropriately, and for&nbsp;<a style=\"color: #5a88b5; background-color: inherit;\" href=\"http://httpd.apache.org/docs/current/content-negotiation.html\">content negotiation</a>, where the server returns one from several documents based on the client\'s charset preference.</p>\n<p style=\"line-height: 1.3em; margin: 0px 0px 1em; padding: 0px; color: #003366; font-family: Arial, Helvetica, sans-serif; font-size: 14px;\">The&nbsp;<var>exten</var></p>