var xmlHttp;
function createXMLHttpRequest() {
    if (window.ActiveXObject) {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }else if (window.XMLHttpRequest) {
        xmlHttp = new XMLHttpRequest();
    }
}
function writMailCount(values) {
    createXMLHttpRequest();
    var url = "WriteCountMailServlet?id=" + values;
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = callback;
    xmlHttp.send(null);
}
function callback() {
    if (xmlHttp.readyState == 4){
        if (xmlHttp.status == 200){
           // var mes = xmlHttp.responseXML.getElementsByTagName("message")[0].firstChild.data;
          //  setAsMessage(mes);
                                  }
                               }
}
function setAsMessage(mes){
     var messageArea = document.getElementById("countID");
     if(mes=="true")
         messageArea.innerHTML="更新成功！";
      else
          messageArea.innerHTML="更新失败！";

}