function Ajax()
{
	this.toString = function() { return "Ajax"; }
	
	this.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);
	}
	
	this.checkReadyState = function(_id, _1, _2, _3)
	{	
		switch (this.request.readyState)
		{
			case 1:
				if (_id != null) document.getElementById(_id).innerHTML = _1;
				break;
			case 2:
				if (_id != null) document.getElementById(_id).innerHTML = _2;
				break;
			case 3:
				if (_id != null) document.getElementById(_id).innerHTML = _3;
				break;
			case 4:
				return this.request.status;
		}
	}
}