var requests = new Array();
if(typeof(XMLHttpRequest) == 'undefined')
var XMLHttpRequest = function()
{
var request = null;
try
{
request = new ActiveXObject('Msxml2.XMLHTTP');
}
catch(e)
{
try
{
request = new ActiveXObject('Microsoft.XMLHTTP');
}
catch(ee)
{}
}
return request;
}
function ajax_stop()
{
for(var i=0; i<requests.length; i++)
{
if(requests[i] != null)
requests[i].abort();
}
}
function ajax_create_request(context)
{
for(var i=0; i<requests.length; i++)
{
if(requests[i].readyState == 4)
{
requests[i].abort();
requests[i].context = context;
return requests[i];
}
}
var pos = requests.length;
requests[pos] = Object();
requests[pos].obj = new XMLHttpRequest();
requests[pos].context = context;
return requests[pos];
}
function ajax_request(url, data, callback, context)
{
//alert("ok");
var request = ajax_create_request(context);
var async = typeof(callback) == 'function';
if(async) request.obj.onreadystatechange = function()
{
if(request.obj.readyState == 4)
callback(new ajax_response(request));
}
request.obj.open('POST', url, async);
request.obj.send(data);
if(!async)
return new ajax_response(request);
}
function ajax_response(request)
{
this.request = request.obj;
this.error = null;
this.value = null;
this.context = request.context;
if(request.obj.status == 200)
{
try
{
this.value = object_from_json(request);
if(this.value && this.value.error)
{
this.error = this.value.error;
this.value = null;
}
}
catch(e)
{
this.error = new ajax_error(e.name, e.description, e.number);
}
}
else
{
this.error = new ajax_error('HTTP request failed with status: ' + request.obj.status, request.obj.status);
}
return this;
}
function enc(s)
{
return s.toString().replace(/\%/g, "%26").replace(/=/g, "%3D");
}
function object_from_json(request)
{
if(request.obj.responseXML != null && request.obj.responseXML.xml != null && request.obj.responseXML.xml != '')
return request.obj.responseXML;
var r = null;	
eval('r=' + request.obj.responseText + ';');
return r;
}
function ajax_error(name, description, number)
{
this.name = name;
this.description = description;
this.number = number;
return this;
}
ajax_error.prototype.toString = function()
{
return this.name + " " + this.description;
}
function json_from_object(o)
{
if(o == null)
return 'null';
switch(typeof(o))
{
case 'object':
if(o.constructor == Array)		// checks if it is an array [,,,]
{
var s = '';
for(var i=0; i<o.length; ++i)
{
s += json_from_object(o[i]);
if(i < o.length -1)
s += ',';
}
return '[' + s + ']';
}
break;
case 'string':
return '"' + o.replace(/(["\\])/g, '\\$1') + '"';
default:
return String(o);
}
}var ajaxVersion = '5.7.22.2';