function urlDecode( encoded )
{
	var HEXCHARS = "0123456789ABCDEFabcdef";
	var plaintext = "";
	var i = 0;
	while (i < encoded.length) {
		var ch = encoded.charAt(i);
		if (ch == "+") {
			plaintext += " ";
			i++;
		} else if (ch == "%") {
			if (i < (encoded.length-2)
			&& HEXCHARS.indexOf(encoded.charAt(i+1)) != -1
			&& HEXCHARS.indexOf(encoded.charAt(i+2)) != -1 ) {
				plaintext += unescape( encoded.substr(i,3) );
				i += 3;
			} else {
				plaintext += "%[ERROR]";
				i++;
			}
		} else {
			plaintext += ch;
			i++;
		}
	}
	return plaintext;
};

function arrayDecode( encoded )
{
	var row = encoded.split("~");
	var numRows = row.length ;
	var arr = new Array(numRows);

	for(var x = 0; x < numRows; x++){
		var tmp = row[x].split("|");
		
		//MK - FIX ###plus###
		for(var y = 0; y < arr.length; y++){
			tmp[y] = decodeSpecialChars(tmp[y]);
		}
		arr[x] = tmp;
	}

	return arr;
}

function decodeSpecialChars(data)
{
	s = new String(data);
	s = s.replace(/\#\#plus\#\#/g,"+");
	s = s.replace(/\#\#backslash\#\#/g,"\\");
	s = s.replace(/\#\#pipe\#\#/g,"|");
	s = s.replace(/\#\#tilde\#\#/g,"~");

	return s;
}

function encodeSpecialChars(data)
{
	s = new String(data);
	s = s.replace(/\+/g,"###plus###") ;
	s = s.replace(/\\/g,"##backslash##") ;
	s = s.replace(/\|/g,"##pipe##") ;
	s = s.replace(/\~/g,"##tilde##") ;
	return escape(s);
}	

var numLoading = 0;

function loading_show()
{

	var loading = document.getElementById('loading');
	if (!loading)
	{
		loading = document.createElement('div');
		loading.id = 'loading';
		loading.innerHTML = '<font style="font-family:verdana; font-size:12px; color:white;">Loading...</' + 'font>';
		loading.style.position = 'absolute';
		loading.style.top = '4px';
		loading.style.right = '4px';
		loading.style.backgroundColor = 'red';
		loading.style.width = '65px';
		loading.style.padding = '2px';
		document.getElementsByTagName('body').item(0).appendChild(loading);
	}
	loading.style.display = 'block';
	numLoading++;
}

function loading_hide()
{
	numLoading--;
	if(numLoading < 1) {
		var loading = document.getElementById('loading');
		if (loading) {
			loading.style.display = 'none';
		}
	}
}

function aj_init_object() {
	
	if(use_iframe) {
		var xmlhttp = new XMLHttpRequestI();
		return xmlhttp;
	}
	
	var xmlhttp=false;
	/*@cc_on @*/
	/*@if (@_jscript_version >= 5)
	// JScript gives us Conditional compilation, we can cope with old IE versions.
	// and security blocked creation of the objects.
	try {
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
	try {
	xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
	xmlhttp = false;
	}
	}
	@end @*/
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	} else if(!xmlhttp) {
		//IFrame fallback for IE
		var xmlhttp = new XMLHttpRequestI();
	}
	
	return xmlhttp;
}


function aj_process(data)
{
	//alert(data.length);
	//print_2d_string_array(data);
	for(var x = 0; x < data.length; x++)
		aj_process2(data[x]);
}



function aj_call(func_name, args, custom_cb) {
	var i, x, n;
	var uri;
	var post_data;

	uri = request_uri;

	if (xml_request_type == "GET") {
		if (uri.indexOf("?") == -1)
		uri = uri + "?rs=" + escape(func_name);
		else
		uri = uri + "&rs=" + escape(func_name);
		for (i = 0; i < args.length; i++)
			uri = uri + "&rsargs[]=" + encodeSpecialChars(args[i]);
		uri = uri + "&rsrnd=" + new Date().getTime();
		post_data = null;
	} else {
		post_data = "rs=" + escape(func_name);
		for (i = 0; i < args.length; i++)
		post_data = post_data + "&rsargs[]=" + escape(args[i]);

	}

	x = aj_init_object();
	if(show_loading)
	loading_show();
	//alert(uri);
	x.open(xml_request_type, uri, true);
	if (xml_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;
		}

		loading_hide();

		if(x.status != 200)
		{
			alert('Error invalid status: ' + x.responseText + ' status: ' + x.status);
			delete x;
			return;
		}

		var status = x.responseText.charAt(0);
		var data = x.responseText.substring(2);

		if (status == "-")
		{
			alert("Callback error: " + data);
			delete x;
			return;
		}

		if (custom_cb != undefined ) {
			args[args.length-1]( "" + data);
		} else {
			aj_process(arrayDecode(urlDecode(data)));
		}
	}
	x.send(post_data);
	delete x;
}

/*
coded by Kae - http://verens.com/
use this code as you wish, but retain this notice

MK - notice retained, but renamed function to XMLHttpRequestI and
modified initial timeout
*/
XMLHttpRequestI = function() {
	var i=0;
	var url='';
	var responseText='';
	this.onreadystatechange=function(){
		return false;
	}
	this.open=function(method,url){
		//TODO: POST methods
		this.i=++kXHR_instances; // id number of this request
		this.url=url;
		var iframe = document.createElement('iframe');
		iframe.id= 'kXHR_iframe_'+this.i+'';
		iframe.type = "text/plain";
		iframe.style.display = 'none';
		//alert(iframe.id);
		document.body.appendChild(iframe);
	}
	this.send=function(postdata){
		//TODO: use the postdata
		var el=document.getElementById('kXHR_iframe_'+this.i);
		el.src=this.url;
		kXHR_objs[this.i]=this;
		setTimeout('XMLHttpRequestI_checkState('+this.i+')',200);
	}
	return true;
}
function XMLHttpRequestI_checkState(inst){
	var el=document.getElementById('kXHR_iframe_'+inst);
	if(el.readyState=='complete'){
		var responseText=window.frames['kXHR_iframe_'+inst].document.body.childNodes[0].data;
		kXHR_objs[inst].responseText=responseText;
		kXHR_objs[inst].readyState=4;
		kXHR_objs[inst].status=200;
		kXHR_objs[inst].onreadystatechange();
		el.parentNode.removeChild(el);
	}else{
		setTimeout('XMLHttpRequestI_checkState('+inst+')',500);
	}
}
var kXHR_instances=0;
var kXHR_objs=[];