?? ajax.js
字號(hào):
var http_request = null;
var s_XMLHttpNameCache = null;
function send_request(url,callback,data){
http_request = createXMLHttp();
if (typeof(http_request) == 'undefined') {
window.alert("Can't creat XMLHttpRequest Object.");
return false;
}
nowtime = new Date().getTime();
url += (url.indexOf('?', 0) == -1) ? '?' : '&';
url += 'nowtime=' + nowtime;
if (typeof(data) == 'undefined') {
http_request.open('GET',url,true);
http_request.send(null);
} else {
var request = data;
http_request.open('POST',url,true);
http_request.setRequestHeader('Content-Length', request.length);
http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
http_request.send(request);
}
if (typeof(callback) == 'function') {
http_request.onreadystatechange = function () {
if (http_request.readyState == 4) {
if (http_request.status == 200 || http_request.status == 304) {
callback(http_request);
} else {
alert("Error loading page\n" + http_request.status + ':' + http_request.statusText);
}
}
}
}
}
function createXMLHttp() {
if (window.XMLHttpRequest) {
var objXMLHttp = new XMLHttpRequest();
if (objXMLHttp.readyState == null) {
objXMLHttp.readyState = 0;
objXMLHttp.addEventListener(
"load",
function () {
objXMLHttp.readyState = 4;
if (typeof(objXMLHttp.onreadystatechange) == "function") {
objXMLHttp.onreadystatechange();
}
},
false
);
}
return objXMLHttp;
} else if (s_XMLHttpNameCache != null) {
return new ActiveXObject(s_XMLHttpNameCache);
} else {
var MSXML = [
'MSXML2.XMLHTTP.6.0',
'MSXML2.XMLHTTP.5.0',
'MSXML2.XMLHTTP.4.0',
'MSXML2.XMLHTTP.3.0',
'MsXML2.XMLHTTP.2.6',
'MSXML2.XMLHTTP',
'Microsoft.XMLHTTP.1.0',
'Microsoft.XMLHTTP.1',
'Microsoft.XMLHTTP'
];
var n = MSXML.length;
for (var i = 0; i < n; i++) {
try {
objXMLHttp = new ActiveXObject(MSXML[i]);
s_XMLHttpNameCache = MSXML[i];
return objXMLHttp;
}
catch(e) {}
}
return null;
}
}
function ajax_convert(str){
f = new Array(/\r?\n/gi, /\+/gi, /\&/gi);
r = new Array('%0A', '%2B', '%26');
for (var i = 0; i < f.length; i++){
str = str.replace(f[i], r[i]);
}
return str;
}
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