if (typeof XMLHttpRequest == "undefined")
{
	XMLHttpRequest = function() {
		return new ActiveXObject(navigator.userAgent.indexOf("MSIE 5") >= 0 ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP");
	};
}

function ajax(options)
{
	options = {
		type: options.type || "GET",
		url: options.url || "",
		timeout: options.timeout || 5000,
		onComplete: options.onComplete || function(){},
		onError: options.onError || function(){},
		onSuccess: options.onSuccess || function(){},
		data: options.data || ""
	};

	var xml = new XMLHttpRequest();
	xml.open(options.type, options.url, true);

	var timeoutLength = options.timeout;
	var requestDone = false;
	setTimeout(function(){ requestDone = true; }, timeoutLength);

	xml.onreadystatechange = function() {
		if (xml.readyState == 4 && !requestDone)
		{
			if (httpSuccess(xml))
			{
				options.onSuccess( httpData(xml, options.type) );
			}
			else
			{
				options.onError();
			}
			options.onComplete();
			xml = null;
		}
	};

	xml.send(null);

	function httpSuccess(r)
	{
		try
		{ 
			return !r.status && location.protocol == "file:" ||
				(r.status >= 200 && r.status < 300) ||
				r.status == 304 ||
				navigator.userAgent.indexOf("Safari") >= 0 && typeof r.status == "undefined" ;
		} catch(e) {}

		return false;
	}

	function httpData(r, type)
	{
		var ct = r.getResponseHeader("content-type");
		var data = !type && ct && ct.indexOf("xml") >= 0;
		data = type == "xml" || data ? r.responseXML : r.responseText;
		if (type == "script")
			eval.call(window, data);
		return data;
	}
}