44 lines
1 KiB
JavaScript
44 lines
1 KiB
JavaScript
wn.xmlhttp = {
|
|
request: function() {
|
|
if ( window.XMLHttpRequest ) // Gecko
|
|
return new XMLHttpRequest() ;
|
|
else if ( window.ActiveXObject ) // IE
|
|
return new ActiveXObject("MsXml2.XmlHttp") ;
|
|
},
|
|
|
|
complete: function(req, callback, url) {
|
|
if (req.status==200 || req.status==304) {
|
|
callback(req.responseText);
|
|
} else {
|
|
alert(url +' request error: ' + req.statusText + ' (' + req.status + ')' ) ;
|
|
}
|
|
},
|
|
|
|
get: function(url, callback, args, async) {
|
|
// async by default
|
|
if(async === null) async=true;
|
|
var req = wn.xmlhttp.request();
|
|
|
|
// for async type
|
|
req.onreadystatechange = function() {
|
|
if (req.readyState==4) {
|
|
wn.xmlhttp.complete(req, callback, url)
|
|
}
|
|
}
|
|
// separator can be & or ?
|
|
// based on if there are already arguments
|
|
var sep = ((args && args.indexOf('?'))==-1) ? '?' : '&';
|
|
|
|
// add arguments to url
|
|
var u = args ? (url + sep + args) : url;
|
|
|
|
// call the server
|
|
req.open('GET', u, async);
|
|
req.send(null);
|
|
|
|
// for sync
|
|
if(!async) {
|
|
wn.xmlhttp.complete(req, callback, url)
|
|
}
|
|
}
|
|
}
|