ajax提交表单

var DataToSend = "id=1&word=hello ";
var xmlhttp = new ActiveXObject( "Microsoft.XMLHTTP ");
xmlhttp.Open( "POST ", "Receiver.asp ",false);
//关键在下面这句
xmlhttp.setRequestHeader( "Content-Type ", "application/x-www-form-urlencoded ");
xmlhttp.send(DataToSend);
alert(xmlhttp.responseXML.xml);