Charset [character sets] XHTML tag

Useful character sets [ charset ]
Charset Example
iso-8859-1 <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
windows <meta http-equiv="Content-Type" content="text/html; charset=windows-1252" /> [ useful for Irish ]
unicode <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
us-ascii <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" />