// define namespace
if(typeof ffsp == 'undefined') { ffsp = {} }
if(!ffsp.ajax) { ffsp.ajax = {} }

// impliments
ffsp.ajax.requests = new Array();

if(typeof(XMLHttpRequest) == 'undefined') {
	ffsp.ajax.XmlHttpRequest = function()
	{
		var request = null;
		try {
			request = new ActiveXObject('Msxml2.XMLHTTP');
		}
		catch(e) {
			try {
				request = new ActiveXObject('Microsoft.XMLHTTP');
			}
			catch(ee) {}
		}
		return request;
	}
}
else {
	ffsp.ajax.XmlHttpRequest = XMLHttpRequest;
}

ffsp.ajax.stop = function()
{
	for(var i=0; i < ffsp.ajax.requests.length; i++) {
		if(ffsp.ajax.requests[i] != null)
			ffsp.ajax.requests[i].abort();
	}
}

ffsp.ajax.createRequest = function(context)
{
	for(var i=0; i < ffsp.ajax.requests.length; i++) {
		if(ffsp.ajax.requests[i].readyState == 4) {
			ffsp.ajax.requests[i].abort();
			ffsp.ajax.requests[i].context = null;
			return ffsp.ajax.requests[i];
		}
	}

	var pos = ffsp.ajax.requests.length;
	
	ffsp.ajax.requests[pos] = Object();
	ffsp.ajax.requests[pos].obj = new ffsp.ajax.XmlHttpRequest();
	ffsp.ajax.requests[pos].context = context;
	
	return ffsp.ajax.requests[pos];
}

ffsp.ajax.request = function(url, data, callback, context)
{
	var request = ffsp.ajax.createRequest(context);
	var async = typeof(callback) == 'function';

	if(async) request.obj.onreadystatechange = function() {
		if(request.obj.readyState == 4)
			callback(new ffsp.ajax.response(request));
	}
	
	var viewstate = null;
	for(var i = 0; i < document.forms[0].elements.length; i++) {
		var ele = document.forms[0].elements[i];
		if(ele.name == "__VIEWSTATE") {
			viewstate = ele;
			break;
		}
	}
	if(viewstate != null) {
		data = data + "\r\n\r\n" + viewstate.value;
	}
	
	request.obj.open('POST', url, async);
	request.obj.send(data);
	
	if(!async)
		return new ffsp.ajax.response(request);
}

ffsp.ajax.response = function(request)
{
	this.request = request.obj;
	this.error = null;
	this.value = null;
	this.context = request.context;
	
	if(request.obj.status == 200) {
		try {
			this.value = ffsp.ajax.objectFromJSON(request);
			
			if(this.value && this.value.error) {
				this.error = this.value.error;
				this.value = null;
			}
		}
		catch(e) {
			this.error = new ffsp.ajax.error(e.name, e.description, e.number);
		}
	}
	else {
		this.error = new ffsp.ajax.error('HTTP request failed with status: ' + request.obj.status, request.obj.status);
	}
	
	return this;
}

ffsp.ajax.enc = function(s)
{
	return s.toString().replace(/\%/g, "%26").replace(/=/g, "%3D");
}

ffsp.ajax.error = function(name, description, number)
{
	this.name = name;
	this.description = description;
	this.number = number;

	var obj = ffsp.ajax.error.prototype;

	obj.toString = function()
	{
		return this.name + " " + this.description;
	};

	return this;
}

ffsp.ajax.objectFromJSON = function(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;
}

ffsp.ajax.JSONFromObject = function(arg)
{
	var c, i, l, s = '', v;

	switch (typeof arg) {
	case 'object':
		if(arg) {
			if(arg.constructor == Array) {
				for(i = 0; i < arg.length; ++i) {
					v = ffsp.ajax.JSONFromObject(arg[i]);
					if (s) {
						s += ',';
					}
					s += v;
				}
				return '[' + s + ']';
			}
			else if(typeof arg.toString != 'undefined') {
				for(i in arg) {
					v = arg[i];
					if(typeof v != 'undefined' && typeof v != 'function') {
						v = ffsp.ajax.JSONFromObject(v);
						if (s) {
							s += ',';
						}
						s += ffsp.ajax.JSONFromObject(i) + ':' + v;
					}
				}
				return '{' + s + '}';
			}
		}
		return 'null';
	case 'number':
		return isFinite(arg) ? String(arg) : 'null';
	case 'string':
		l = arg.length;
		s = '"';
		for(i = 0; i < l; i += 1) {
			c = arg.charAt(i);
			if(c >= ' ') {
				if(c == '\\' || c == '"') {
					s += '\\';
				}
				s += c;
			} else {
				switch (c) {
					case '\b':
						s += '\\b';
						break;
					case '\f':
						s += '\\f';
						break;
					case '\n':
						s += '\\n';
						break;
					case '\r':
						s += '\\r';
						break;
					case '\t':
						s += '\\t';
						break;
					default:
						c = c.charCodeAt();
						s += '\\u00' + Math.floor(c / 16).toString(16) +
							(c % 16).toString(16);
				}
			}
		}
		return s + '"';
	case 'boolean':
		return String(arg);
	default:
		return 'null';
	}
}

ffsp.ajax.ajaxVersion = '5.6.3.4';