1 .无刷新留言

<script type="text/javascript">

function getIdObj(id) { return document.getElementById(id); }

window.onload = function () {

document.getElementById('btnSumbit').onclick = function () {

var _Id = document.getElementById('txtId').value;

var _Class = document.getElementById('txtClass').value;

var str = 'id=' + _Id + '&className=' + _Class;

var xhr = null;

if (typeof XMLHttpRequest != 'undefined') {

xhr = new XMLHttpRequest();

} else {

xhr = new ActiveXObject("Microsoft.XMLHttp");

}

xhr.onreadystatechange = function () {

if (xhr.readyState == 4 && xhr.status == 200) {

var res = xhr.responseText;

var msgObj=document.getElementById('msgId');

if (res == 1)

{

msgObj.innerHTML = "提交成功！";

msgObj.style.color = "green";

var tboduObj = document.getElementById('tdid').getElementsByTagName('tbody')[0];

var trObj = tboduObj.insertRow(-1);

trObj.insertCell(-1).innerHTML = 1;

trObj.insertCell(-1).innerHTML = _Class;

trObj.insertCell(-1).innerHTML = _Id;

}

}

};

xhr.open('post', 'AddClass.ashx', true);

xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

xhr.send(str);

};

};

</script>

2.JsHelper

var JsHelper = {

getXHR: function () {

var xhr = null;

if (typeof XMLHttpRequest != 'undefined') {

xhr = new XMLHttpRequest();

} else {

xhr = new ActiveXObject('Microsoft.XMLHttp');

}

return xhr;

},

doAjax: function (method, url, data, isAyn, callback) {

method=method.toLowerCase();

var xhr = this.getXHR();

xhr.open(method,url+(method=="get"?'?'+data:''), isAyn);

if (method == 'get') {

xhr.setRequestHeader('If-Modified-Since', 0);

} else {

xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

}

xhr.onreadystatechange = function () {

callback(xhr);

};

xhr.send(method != "get" ? data : null);

}

};