oXmlHttp.open( "POST", urlToCall, bAsync ) ;
oXmlHttp.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded");
oXmlHttp.send(params);
oXmlHttp.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded");
oXmlHttp.send(params);
<globalization requestEncoding="utf-8" responseEncoding="utf-8"/>