//* AJAX Toolkit
//* Copyright 2006 OPAG Online Promotion AG
function AJAX(url, callback, data, sync) {
this.sync = sync || false;
if(window.ActiveXObject)
this.request = new ActiveXObject('Microsoft.XMLHTTP');
else
this.request = new XMLHttpRequest();
if(this.sync == false) {
this.request.open('POST', url + '?rand=' + Math.random(), true);
var a = this;
this.request.onreadystatechange = function() {
var r = a.request;
if(r.readyState == 4) {
try { a.ontransferend(); } catch(e) {}
if(r.status == 200)
a.callback(a.parseJSON(r.responseText), a.data);
else
a.callback(null, a.data);
}
};
}
else
this.request.open('POST', url + '?rand=' + Math.random(), false);
this.request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
if(callback)
this.callback = callback;
else
this.callback = this.success;
this.data = data;
this.parameter = '';
}
AJAX.prototype.success = function(s, d) {
alert(s);
}
AJAX.prototype.parseJSON = function(text) {
if(text.length == 0)
return null;
var rex = /[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/
var reprex = /"(\\.|[^"\\])*"/g
if(rex.test(text.replace(reprex, '')) == true)
return null;
var obj;
try {
obj = eval('(' + text + ')');
}
catch(e) {
obj = null;
}
return obj;
}
AJAX.prototype.setParameter = function(parameter, value) {
this.parameter = this.parameter + '&' + encodeURIComponent(parameter) + '=' + encodeURIComponent(value);
}
AJAX.prototype.setForm = function(fid) {
var f = document.getElementById(fid);
if(!f)
return;
var p = '';
for(var i = 0; i < f.elements.length; i++) {
switch(f.elements[i].type) {
case 'hidden':
case 'text':
case 'password':
case 'textarea':
p = p + '&' + encodeURIComponent(f.elements[i].name) + '=' + encodeURIComponent(f.elements[i].value);
break;
case 'checkbox':
case 'radio':
if(f[i].checked)
p = p + '&' + encodeURIComponent(f.elements[i].name) + '=' + encodeURIComponent(f.elements[i].value);
break;
case 'select-one':
p = p + '&' + encodeURIComponent(f.elements[i].name) + '=' + encodeURIComponent(f.elements[i].value);
break;
case 'select-multiple':
for(var j = 0; j < f.elements[i].options.length; j++) {
if(f.elements[i].options[j].selected)
p = p + '&' + encodeURIComponent(f.elements[i].name) + '=' + encodeURIComponent(f.elements[i].options[j].value);
}
break;
case 'button':
case 'submit':
case 'reset':
default:
break;
}
}
this.parameter = this.parameter + p;
}
AJAX.prototype.send = function() {
try { this.ontransferstart(); } catch(e) {}
this.request.send('utf8=ä' + this.parameter);
if(this.sync == false)
return;
if(this.request.status == 200) {
try { this.ontransferend(); } catch(e) {}
return this.parseJSON(this.request.responseText);
}
try { this.ontransferend(); } catch(e) {}
return null;
}
AJAX.prototype.ontransferstart = function() {}
AJAX.prototype.ontransferend = function() {}