/**********************************************************************
*
*   Sajax wrapper
*
**********************************************************************/

function CallPhpFunction()
{
	// *** Php function name
	var FunctionName = CallPhpFunction.arguments[0];
	// Parameters for function
	var Parameters = new Array();

	// Get Parametes from CallPhpFunction
	for (i = 1; i < CallPhpFunction.arguments.length; i++)
	{
		if (i < CallPhpFunction.arguments.length - 1)
			Parameters[i - 1] = urlencode(CallPhpFunction.arguments[i]);
		else
			Parameters[i - 1] = CallPhpFunction.arguments[i];
	}

	// *** Call php function
	sajax_do_call(FunctionName, Parameters);
}

// remote scripting library
// (c) copyright 2005 modernmethod, inc
var sajax_request_type = "POST";
var sajax_target_id = "";
var sajax_failure_redirect = "";

function sajax_init_object()
{
	var A;

	var msxmlhttp =
		new Array('Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'Msxml2.XMLHTTP.3.0', 'Msxml2.XMLHTTP', 'Microsoft.XMLHTTP');

	for (var i = 0; i < msxmlhttp.length; i++)
	{
		try
		{
			A = new ActiveXObject(msxmlhttp[i]);
		}
		catch (e)
		{
			A = null;
		}
	}

	if (!A && typeof XMLHttpRequest != "undefined")
		A = new XMLHttpRequest();

	return A;
}

var sajax_requests = new Array();

function sajax_cancel()
{
	for (var i = 0; i < sajax_requests.length; i++)
		sajax_requests[i].abort();
}

function sajax_do_call(func_name, args)
{
	var i, x, n;
	var uri;
	var post_data;
	var target_id;

	target_id = sajax_target_id;

	if (typeof (sajax_request_type) == "undefined" || sajax_request_type == "")
		sajax_request_type = "GET";

	/*
	*   Check if custom uri has been set
	*/
	if (typeof window.sajax_remote_uri == 'undefined')
	{
		uri = document.URL;
	}
	else
	{
		uri = sajax_remote_uri;
	}

	if (sajax_request_type == "GET")
	{
		if (uri.indexOf("?") == -1)
			uri += "?rs=" + escape(func_name);
		else
			uri += "&rs=" + escape(func_name);
		uri += "&rst=" + escape(sajax_target_id);
		uri += "&rsrnd=" + new Date().getTime();

		for (i = 0; i < args.length - 1; i++)
			uri += "&rsargs[]=" + escape(args[i]);

		post_data = null;
	}
	else if (sajax_request_type == "POST")
	{
		post_data = "rs=" + escape(func_name);
		post_data += "&rst=" + escape(sajax_target_id);
		post_data += "&rsrnd=" + new Date().getTime();

		for (i = 0; i < args.length - 1; i++)
			post_data = post_data + "&rsargs[]=" + escape(args[i]);
	}
	else
	{
		alert("Illegal request type: " + sajax_request_type);
	}

	x = sajax_init_object();

	if (x == null)
	{
		if (sajax_failure_redirect != "")
		{
			location.href = sajax_failure_redirect;
			return false;
		}
		else
		{
			return false;
		}
	}
	else
	{
		x.open(sajax_request_type, uri, true);

		sajax_requests[sajax_requests.length] = x;

		if (sajax_request_type == "POST")
		{
			x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
			x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		}

		x.onreadystatechange = function()
		{
			if (x.readyState != 4)
				return;

			var status;
			var data;
			var txt = x.responseText.replace(/^\s*|\s*$/g, "");
			status = txt.charAt(0);
			data = txt.substring(2);

			if (status == "")
			{
			// let's just assume this is a pre-response bailout and let it slide for now
			}
			else if (status == "-")
				alert("Error: " + data);
			else
			{
				if (target_id != "")
					document.getElementById(target_id).innerHTML = eval(data);
				else
				{
					try
					{
						var callback;
						var extra_data = false;

						if (typeof args[args.length - 1] == "object")
						{
							callback = args[args.length - 1].callback;
							extra_data = args[args.length - 1].extra_data;
						}
						else
						{
							callback = args[args.length - 1];
						}
						callback(eval(data), extra_data);
					}
					catch (e)
					{
						alert('Error in request: ' + e);
					}
				}
			}
		}
	}

	x.send(post_data);
	delete x;
	return true;
}