Ajax = {};
Ajax.makeRequest = function(method, url, callbackMethod)
{
    this.request = (window.XMLHttpRequest)? new XMLHttpRequest(): new ActiveXObject("MSXML2.XMLHTTP");
    this.request.onreadystatechange = callbackMethod;
    this.request.open(method, url, true);
    this.request.send(url);
}
Ajax.checkReadyState = function(_id)
{
    switch(this.request.readyState)
    {
        case 1:
            document.getElementById(_id).innerHTML = 'Loading ...';
            break;
        case 2:
            document.getElementById(_id).innerHTML = 'Loading ...';
            break;
        case 3:
            document.getElementById(_id).innerHTML = 'Loading ...';
            break;
        case 4:
            AjaxUpdater.isUpdating = false;
            document.getElementById(_id).innerHTML = '';
            return this.request.status;
    }
}
Ajax.getResponse = function()
{
    if(this.request.getResponseHeader('Content-Type').indexOf('xml') != -1)
    {
        return this.request.responseXML.documentElement;
    }
    else
    {
        return this.request.responseText;
    }
}