/**
 * Compat functions
 * @category	HTML
 * @package	AJAX
 * @author	Joshua Eichorn <josh@bluga.net>
 * @copyright	2005 Joshua Eichorn
 * @license	http://www.opensource.org/licenses/lgpl-license.php  LGPL
 */
/**
 *  Functions for compatibility with older browsers
 */
if (!String.fromCharCode && !String.prototype.fromCharCode) {
	String.prototype.fromCharCode = function(code)
	{
		var h = code.toString(16);
		if (h.length == 1) {
			h = '0' + h;
		}
		return unescape('%' + h);
	}
}
if (!String.charCodeAt && !String.prototype.charCodeAt) {
	String.prototype.charCodeAt = function(index)
	{
		var c = this.charAt(index);
		for (i = 1; i < 256; i++) {
			if (String.fromCharCode(i) == c) {
				return i;
			}
		} 
	}
}
// http://www.crockford.com/javascript/remedial.html
if (!Array.splice && !Array.prototype.splice) {
	Array.prototype.splice = function(s, d)
	{
		var max = Math.max,
		min = Math.min,
		a = [], // The return value array
		e,  // element
		i = max(arguments.length - 2, 0),   // insert count
		k = 0,
		l = this.length,
		n,  // new length
		v,  // delta
		x;  // shift count

		s = s || 0;
		if (s < 0) {
			s += l;
		}
		s = max(min(s, l), 0);  // start point
		d = max(min(typeof d == 'number' ? d : l, l - s), 0);	// delete count
		v = i - d;
		n = l + v;
		while (k < d) {
			e = this[s + k];
			if (!e) {
				a[k] = e;
			}
			k += 1;
		}
		x = l - s - d;
		if (v < 0) {
			k = s + i;
			while (x) {
				this[k] = this[k - v];
				k += 1;
				x -= 1;
			}
			this.length = n;
		} else if (v > 0) {
			k = 1;
			while (x) {
				this[n - k] = this[l - k];
				k += 1;
				x -= 1;
			}
		}
		for (k = 0; k < i; ++k) {
			this[s + k] = arguments[k + 2];
		}
		return a;
	}
}
if (!Array.push && !Array.prototype.push) {
	Array.prototype.push = function()
	{
		for (var i = 0, startLength = this.length; i < arguments.length; i++) {
			this[startLength + i] = arguments[i];
		}
		return this.length;
	}
}
if (!Array.pop && !Array.prototype.pop) {
	Array.prototype.pop = function()
	{
		return this.splice(this.length - 1, 1)[0];
	}
}
if (window.ActiveXObject && window['DOMParser'] == 'undefined') {
	window.DOMParser = new function() {};
	DOMParser.prototype = {
		parseFromString: function(str, contentType) {
			var xmlDocument = new ActiveXObject('Microsoft.XMLDOM');
			xmlDocument.loadXML(str);
			return xmlDocument;
		}
	};

	window.XMLSerializer = new function() {};
	XMLSerializer.prototype = {
		serializeToString: function(root) {
			return root.xml || root.outerHTML;
		}
	};
}
/**
 * JavaScript library for use with HTML_AJAX
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to:
 * Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category	HTML
 * @package	Ajax
 * @author	Joshua Eichorn <josh@bluga.net>
 * @author	Arpad Ray <arpad@php.net>
 * @author	David Coallier <davidc@php.net>
 * @author	Elizabeth Smith <auroraeosrose@gmail.com>
 * @copyright	2005 Joshua Eichorn, Arpad Ray, David Coallier, Elizabeth Smith
 * @license	http://www.opensource.org/licenses/lgpl-license.php  LGPL
 */

/**
 * HTML_AJAX static methods, this is the main proxyless api, it also handles global error and event handling
 */
var HTML_AJAX = {
	version: '0.5.6',
	defaultServerUrl: false,
	defaultEncoding: 'JSON',
	queues: false,
	clientPools: {},
	// get an HttpClient, supply a name to use the pool of that name or the default if it isn't found
	httpClient: function(name) {
		if (name) {
			if (this.clientPools[name]) {
				return this.clientPools[name].getClient();
			}
		}
		return this.clientPools['default'].getClient();
	},
	// Pushing the given request to queue specified by it, in default operation this will immediately make a request
	// request might be delayed or never happen depending on the queue setup
	// making a sync request to a non immediate queue will cause you problems so just don't do it
	makeRequest: function(request) {
		if (!HTML_AJAX.queues[request.queue]) {
			var e = new Error('Unknown Queue: '+request.queue);
			if (HTML_AJAX.onError) {
				HTML_AJAX.onError(e);
				return false;
			}
			else {
				throw(e);
			}
		}
		else {
			var qn = request.queue;
			var q = HTML_AJAX.queues[qn];

			HTML_AJAX.queues[request.queue].addRequest(request);
			return HTML_AJAX.queues[request.queue].processRequest();
		}
	},
	// get a serializer object for a specific encoding
	serializerForEncoding: function(encoding) {
		for(var i in HTML_AJAX.contentTypeMap) {
			if (encoding == HTML_AJAX.contentTypeMap[i] || encoding == i) {
				return eval("new HTML_AJAX_Serialize_"+i+";");
			}
		}
		return new HTML_AJAX_Serialize_Null();
	},
	fullcall: function(url,encoding,className,method,callback,args, options) {
		var serializer = HTML_AJAX.serializerForEncoding(encoding);

		var request = new HTML_AJAX_Request(serializer);
		if (callback) {
			request.isAsync = true;
		}
		request.requestUrl = url;
		request.className = className;
		request.methodName = method;
		request.callback = callback;
		request.args = args;
		if (options) {
			for(var i in options) {
				request[i] = options[i];
			}
			if (options.grab) {
				if (!request.args || !request.args.length) {
					request.requestType = 'GET';
				}
			}
		}

		return HTML_AJAX.makeRequest(request);
	},
	callPhpCallback: function(phpCallback, jsCallback, url) {
		var args = new Array();
		for (var i = 3; i < arguments.length; i++) {
			args.push(arguments[i]);
		}
		if (HTML_AJAX_Util.getType(phpCallback[0]) == 'object') {
			jsCallback(phpCallback[0][phpCallback[1]](args));
			return;
		}
		if (!url) {
			url = HTML_AJAX.defaultServerUrl;
		}
		HTML_AJAX.fullcall(url, HTML_AJAX.defaultEncoding,
			false, false, jsCallback, args, {phpCallback: phpCallback});
	},
	call: function(className,method,callback) {
		var args = new Array();
		for(var i = 3; i < arguments.length; i++) {
			args.push(arguments[i]);
		}
		return HTML_AJAX.fullcall(HTML_AJAX.defaultServerUrl,HTML_AJAX.defaultEncoding,className,method,callback,args);
	},
	grab: function(url,callback,options) {
		if (!options) {
			options = {grab:true};
		}
		else {
			options['grab'] = true;
		}
		return HTML_AJAX.fullcall(url,'Null',false,null,callback, '', options);
	},
	post: function(url,payload,callback,options) {
		var serializer = 'Null';
		if (HTML_AJAX_Util.getType(payload) == 'object') {
			serializer = 'Urlencoded';
		}
		return HTML_AJAX.fullcall(url,serializer,false,null,callback, payload, options);
	},
	replace: function(id) {
		var callback = function(result) {
			HTML_AJAX_Util.setInnerHTML(HTML_AJAX_Util.getElement(id),result);
		}
		if (arguments.length == 2) {
			// grab replacement
			HTML_AJAX.grab(arguments[1],callback);
		}
		else {
			// call replacement
			var args = new Array();
			for(var i = 3; i < arguments.length; i++) {
				args.push(arguments[i]);
			}
			HTML_AJAX.fullcall(HTML_AJAX.defaultServerUrl,HTML_AJAX.defaultEncoding,arguments[1],arguments[2],callback,args, {grab:true});
		}
	},
	append: function(id) {
		var callback = function(result) {
			HTML_AJAX_Util.setInnerHTML(HTML_AJAX_Util.getElement(id),result,'append');
		}
		if (arguments.length == 2) {
			// grab replacement
			HTML_AJAX.grab(arguments[1],callback);
		}
		else {
			// call replacement
			var args = new Array();
			for(var i = 3; i < arguments.length; i++) {
				args.push(arguments[i]);
			}
			HTML_AJAX.fullcall(HTML_AJAX.defaultServerUrl,HTML_AJAX.defaultEncoding,arguments[1],arguments[2],callback,args, {grab:true});
		}
	}, 
	// override to add top level loading notification (start)
	Open: function(request) {
	},
	// override to add top level loading notification (finish)
	Load: function(request) {
	},
	/*
	// A really basic error handler 
	onError: function(e) {
		msg = "";
		for(var i in e) {
			msg += i+':'+e[i]+"\n";
		}
		alert(msg);
	},
	*/
	// Class postfix to content-type map
	contentTypeMap: {
		'JSON':			'application/json',
		'Null':			'text/plain',
		'Error':		'application/error',
		'PHP':			'application/php-serialized',
		'HA' :			'application/html_ajax_action',
		'Urlencoded':		'application/x-www-form-urlencoded'
	},
	// used internally to make queues work, override Load or onError to perform custom events when a request is complete
	// fires on success and error
	requestComplete: function(request,error) {
		for(var i in HTML_AJAX.queues) {
			if (HTML_AJAX.queues[i].requestComplete) {
				HTML_AJAX.queues[i].requestComplete(request,error);
			}
		}
	},
	
	// turns a form into a urlencoded string
	formEncode: function(form, array_format) {
		form = HTML_AJAX_Util.getElement(form);
		var el, inpType, value, name;
		var out = (array_format) ? {} : '';
		var inputTags = form.getElementsByTagName('INPUT');
		var selectTags = form.getElementsByTagName('SELECT');
		var buttonTags = form.getElementsByTagName('BUTTON');
		var textareaTags = form.getElementsByTagName('TEXTAREA');
		var arrayRegex = /(.+)%5B%5D/;

		var validElement = function (element) {
			if (!element || !element.getAttribute) {
				return false;
			}
			el = element;
			name = HTML_AJAX_Util.encodeUrl(el.getAttribute('name'));
			if (!name) {
				// no element name so skip
				return false;
			}
			if (element.disabled) {
				return false;
			}
			
			if (!array_format) {
				value = HTML_AJAX_Util.encodeUrl(el.value);
			} else {
				value = el.value;
			}
			
			inpType = el.getAttribute('type');
			return true;
		}
		
		inputLoop:
		for (var i=0; i < inputTags.length; i++) {
			if (!validElement(inputTags[i])) {
				continue;
			}
			if (inpType == 'checkbox' || inpType == 'radio') {
				if (!el.checked) {
					// unchecked radios/checkboxes don't get submitted
					continue inputLoop;
				}
				var arr_var = arrayRegex.exec(name); 
				if (array_format && arr_var) {
					if (!out[arr_var[1]]) {
						out[arr_var[1]] = new Array();
					}
					out[arr_var[1]].push(value);
					continue inputLoop;
				}
			}
			// add element to output array
			if (array_format) {
				out[name] = value;
			} else {
				out += name + '=' + value + '&';
			}
		} // end inputLoop

		selectLoop:
		for (var i=0; i<selectTags.length; i++) {
			if (!validElement(selectTags[i])) {
				continue selectLoop;
			}
			var options = el.options;
			for (var z=0; z<options.length; z++){
				var option=options[z];
				if(option.selected){
					if (array_format) {
						if (el.type == 'select-one') {
							out[name] = option.value;
							//only one item can be selected
							continue selectLoop;
						} else {
							if (!out[name]) {
								out[name] = new Array();
							}
							out[name].push(option.value);
						}
					} else {
						out += name + '=' + option.value + '&';
						if (el.type == 'select-one') {
							continue selectLoop;
						}
					}
				}
			}
		} // end selectLoop

		buttonLoop:
		for (var i=0; i<buttonTags.length; i++) {
			if (!validElement(buttonTags[i])) {
				continue;
			}
			// add element to output array
			if (array_format) {
				out[name] = value;
			} else {
				out += name + '=' + value + '&';
			}
		} // end buttonLoop

		textareaLoop:
		for (var i=0; i<textareaTags.length; i++) {
			if (!validElement(textareaTags[i])) {
				continue;
			}
			// add element to output array
			if (array_format) {
				out[name] = value;
			} else {
				out += name + '=' + value + '&';
			}
		} // end textareaLoop
		
		return out;
	},
	// submits a form through ajax. both arguments can be either DOM nodes or IDs, if the target is omitted then the form is set to be the target
	formSubmit: function (form, target, options)
	{
		form = HTML_AJAX_Util.getElement(form);
		if (!form) {
		// let the submit be processed normally
			return false;
		}

		var out = HTML_AJAX.formEncode(form);
		target = HTML_AJAX_Util.getElement(target);
		if (!target) {
			target = form;
		}
		try
		{
			var action = form.attributes['action'].value;
		}
		catch(e){}
		if(action == undefined)
		{
			action = form.getAttribute('action');
		}

		var callback = false;
		if (HTML_AJAX_Util.getType(target) == 'function') {
			callback = target;
		}
		else {
			callback = function(result) {
				// result will be undefined if HA_Action is returned, so skip the replace
				if (typeof result != 'undefined') {
					HTML_AJAX_Util.setInnerHTML(target,result);
				}
			}
		}

		var serializer = HTML_AJAX.serializerForEncoding('Null');
		var request = new HTML_AJAX_Request(serializer);
		request.isAsync = true;
		request.callback = callback;

		switch (form.getAttribute('method').toLowerCase()) {
		case 'post':
			var headers = {};
			headers['Content-Type'] = 'application/x-www-form-urlencoded';
			request.customHeaders = headers;
			request.requestType = 'POST';
			request.requestUrl = action;
			request.args = out;
			break;
		default:
			if (action.indexOf('?') == -1) {
				out = '?' + out.substr(0, out.length - 1);
			}
			request.requestUrl = action+out;
			request.requestType = 'GET';
		}

		if(options) {
			for(var i in options) {
				request[i] = options[i];
			}
		}

		if (request.isAsync == false) {
			return HTML_AJAX.makeRequest(request);
		}
		else {
			HTML_AJAX.makeRequest(request);
			return true;
		}
	}, // end formSubmit()
	makeFormAJAX: function(form,target,options) {
		form = HTML_AJAX_Util.getElement(form);
		var preSubmit = false;
		if(typeof form.onsubmit != 'undefined') {
			preSubmit = form.onsubmit;
			form.onsubmit = function() {};
		}
		form.HAOptions = options;
		var handler = function(e) {
			var form = HTML_AJAX_Util.eventTarget(e);

			var valid = true;
			if (preSubmit) {
				valid = preSubmit();
			}
			if (valid) {
				HTML_AJAX.formSubmit(form,target,form.HAOptions);
			}
			// cancel submission in IE
			e.returnValue = false;
			// cancel submission in FF
			if (e.preventDefault) {
				e.preventDefault();
			}
		}
		HTML_AJAX_Util.registerEvent(form,'submit',handler);
	}
}




// small classes that I don't want to put in there own file

function HTML_AJAX_Serialize_Null() {}
HTML_AJAX_Serialize_Null.prototype = {
	contentType: 'text/plain; charset=utf-8',
	serialize: function(input) {
		return new String(input).valueOf();
	},
	
	unserialize: function(input) {
		return new String(input).valueOf();	
	}
}

function HTML_AJAX_Serialize_XML() {}
HTML_AJAX_Serialize_XML.prototype = {
	contentType: 'application/xml; charset=utf-8',
	serialize: function(input) {
		var xml = '';
		if(typeof(input) == 'object' && input)
		{
			for (var i = 0;i<input.length;i++)
			{
				xml += new XMLSerializer().serializeToString(input[i]);
			}
		}
		return xml;
	},

	unserialize: function(input) {
		return input;
	}
}

// serialization class for JSON, wrapper for JSON.stringify in json.js
function HTML_AJAX_Serialize_JSON() {}
HTML_AJAX_Serialize_JSON.prototype = {
	contentType: 'application/json; charset=utf-8',
	serialize: function(input) {
		return HTML_AJAX_JSON.stringify(input);
	},
	unserialize: function(input) {
		try {
			return eval('('+input+')');
		} catch(e) {
			// sometimes JSON encoded input isn't created properly, if eval of it fails we use the more forgiving but slower parser so will at least get something
			return HTML_AJAX_JSON.parse(input);
		}
	}
}

function HTML_AJAX_Serialize_Error() {}
HTML_AJAX_Serialize_Error.prototype = {
	contentType: 'application/error; charset=utf-8',
	serialize: function(input) {
		var ser = new HTML_AJAX_Serialize_JSON();
		return ser.serialize(input);
	},
	unserialize: function(input) {
		var ser = new HTML_AJAX_Serialize_JSON();
		var data = new ser.unserialize(input);

		var e = new Error('PHP Error: '+data.errStr);
		for(var i in data) {
			e[i] = data[i];
		}
		throw e;
	}
}

// Processing Queues

// simple queue, just processes the request immediately
function HTML_AJAX_Queue_Immediate() {}
HTML_AJAX_Queue_Immediate.prototype = {
	request: false,
	addRequest: function(request) {
		this.request = request;
	},
	processRequest: function() {
		var client = HTML_AJAX.httpClient();
		client.request = this.request;
		return client.makeRequest();
	}
}



// create a default queue, has to happen after the Queue class has been defined
HTML_AJAX.queues = new Object();
HTML_AJAX.queues['default'] = new HTML_AJAX_Queue_Immediate();

HTML_AJAX_Client_Pool = function(maxClients, startingClients)
{
	this.maxClients = maxClients;
	this._clients = [];
	this._len = 0;
	while (--startingClients > 0) {
		this.addClient();
	}
}

HTML_AJAX_Client_Pool.prototype = {
	isEmpty: function()
	{
		return this._len == 0;
	},
	addClient: function()
	{
		if (this.maxClients != 0 && this._len > this.maxClients) {
			return false;
		}
		var key = this._len++;
		this._clients[key] = new HTML_AJAX_HttpClient();
		return this._clients[key];
	},
	getClient: function ()
	{
		for (var i = 0; i < this._len; i++) {
			if (!this._clients[i].callInProgress() && this._clients[i].callbackComplete) {
				return this._clients[i];
			}
		}
		var client = this.addClient();
		if (client) {
			return client;
		}
		return false;
	},
	removeClient: function (client)
	{
		for (var i = 0; i < this._len; i++) {
			if (!this._clients[i] == client) {
				this._clients.splice(i, 1);
				return true;
			}
		}
		return false;
	},
	clear: function ()
	{
		this._clients = [];
		this._len = 0;
	}
};

// create a default client pool with unlimited clients
HTML_AJAX.clientPools['default'] = new HTML_AJAX_Client_Pool(0);
/**
 * Class that contains everything needed to make a request
 * This includes:
 *	The url were calling
 *	If were calling a remote method, the class and method name
 *	The payload, unserialized
 *	The timeout for async calls
 *	The callback method
 *	Optional event handlers: onError, Load, Send
 *	A serializer instance
 *
 * @category	HTML
 * @package	AJAX
 * @author	Joshua Eichorn <josh@bluga.net>
 * @copyright	2005 Joshua Eichorn
 * @license	http://www.opensource.org/licenses/lgpl-license.php  LGPL
 *
 * See Main.js for author/license details
 */
function HTML_AJAX_Request(serializer) {
	this.serializer = serializer;
}
HTML_AJAX_Request.prototype = {

	// Instance of a serializer
	serializer: null,

	// Is this an async request
	isAsync: false,

	// HTTP verb
	requestType: 'POST',

	// The actual URL the request is sent to
	requestUrl: '',

	// Remote Class
	className: null,

	// Remote Method
	methodName: null,

	// Timeout in milliseconds for requests
	timeout: 20000,

	// unserialized data, for rpc calls use add args, to send raw data just set this directly
	args: null,

	// async callback method
	callback: null,

	// Queue to push this request too
	queue: 'default',

	// default priority
	priority: 0,

	// a hash of headers to add to add to this request
	customHeaders: {'X-Requested-With': 'XMLHttpRequest', 'X-Ajax-Engine': 'HTML_AJAX/0.5.6'},

	// true if this request will be sent using iframes
	iframe: false,

	// is this a grab request? if so we need to proxy for iframes
	grab: false,

	// true if this request should expect a multipart response
	multipart: false,

	// remote callback
	phpCallback: false,

	/**
	 * Add an argument for the remote method
	 * @param string argument name
	 * @param mixed value
	 * @return void
	 * @throws Error code 1004
	 */
	addArg: function(name, value) 
	{
		if ( !this.args ) {
			this.args = [];
		}
		if (!/[^a-zA-Z_0-9]/.test(name) ) {
			this.args[name] = value;
		} else {
			throw new Error('Invalid parameter name ('+name+')');
		}
	},

	/**
	 * Get the payload in a serialized manner
	 */
	getSerializedPayload: function() {
		return this.serializer.serialize(this.args);
	},

	/**
	 * Get the content type
	 */
	getContentType: function() {
		return this.serializer.contentType;
	},

	/**
	 * Get the complete url, adding in any needed get params for rpc
	 */
	completeUrl: function() {
		if (this.className || this.methodName) {
			this.addGet('c', this.className);
			this.addGet('m', this.methodName);
		}
		if (this.phpCallback) {
			if (HTML_AJAX_Util.getType(this.phpCallback) == 'array') {
				this.phpCallback = this.phpCallback.join('.');
			}
			this.addGet('cb', this.phpCallback);
		}
		if (this.multipart) {
			this.addGet('multipart', '1');
		}
		return this.requestUrl;
	},

	/**
	 * Compare to another request by priority
	 */
	compareTo: function(other) {
		if (this.priority == other.priority) {
			return 0;
		}
		return (this.priority > other.priority ? 1 : -1);
	},

	/**
	 * Add a GET argument
	 */
	addGet: function(name, value) {
		var url = new String(this.requestUrl);
		url += (url.indexOf('?') < 0 ? '?' : '&') + escape(name) + '=' + escape(value);
		this.requestUrl = url;
	}
}
/**
 * XMLHttpRequest Wrapper
 * @category    HTML
 * @package 	AJAX
 * @author      Joshua Eichorn <josh@bluga.net>
 * @copyright   2005 Joshua Eichorn
 * @license     http://www.opensource.org/licenses/lgpl-license.php  LGPL
 */
function HTML_AJAX_HttpClient() { }
HTML_AJAX_HttpClient.prototype = {
	// request object
	request: null,

	// timeout id
	_timeoutId: null,

	callbackComplete: true,

	// has this request been aborted
	aborted: false,
	
	// method to initialize an xmlhttpclient
	init:function() 
	{
		try {
			// Mozilla / Safari
			//this.xmlhttp = new HTML_AJAX_IframeXHR(); //uncomment these two lines to test iframe
			//return;
			this.xmlhttp = new XMLHttpRequest();
		} catch (e) {
			// IE
			var XMLHTTP_IDS = new Array(
			'MSXML2.XMLHTTP.5.0',
			'MSXML2.XMLHTTP.4.0',
			'MSXML2.XMLHTTP.3.0',
			'MSXML2.XMLHTTP',
			'Microsoft.XMLHTTP' );
			var success = false;
			for (var i=0;i < XMLHTTP_IDS.length && !success; i++) {
				try {
					this.xmlhttp = new ActiveXObject(XMLHTTP_IDS[i]);
					success = true;
				} catch (e) {}
			}
			if (!success) {
				try{
					this.xmlhttp = new HTML_AJAX_IframeXHR();
					this.request.iframe = true;
				} catch(e) {
					throw new Error('Unable to create XMLHttpRequest.');
				}
			}
		}
	},

	// check if there is a call in progress
	callInProgress: function() 
	{
		switch ( this.xmlhttp.readyState ) {
			case 1:
			case 2:
			case 3:
				return true;
			break;
			default:
				return false;
			break;
		}
	},

	// make the request defined in the request object
	makeRequest: function() 
	{
		if (!this.xmlhttp) {
			this.init();
		}

		try {
			if (this.request.Open) {
				this.request.Open();
			}
			else if (HTML_AJAX.Open) {
				HTML_AJAX.Open(this.request);
			}

			if (this.request.multipart) {
				if (document.all) {
					this.iframe = true;
				} else {
					this.xmlhttp.multipart = true;
				}
			}
	
			// set onreadystatechange here since it will be reset after a completed call in Mozilla
			var self = this;
			this.xmlhttp.open(this.request.requestType,this.request.completeUrl(),this.request.isAsync);
			if (this.request.customHeaders) {
				for (var i in this.request.customHeaders) {
					this.xmlhttp.setRequestHeader(i, this.request.customHeaders[i]);
				}
			}
			if (this.request.customHeaders && !this.request.customHeaders['Content-Type']) {
				var content = this.request.getContentType();
				var charsetIndex = content.indexOf('; charset=UTF-8');
				if (charsetIndex == -1) {
					content += '; charset=UTF-8';
				}
				this.xmlhttp.setRequestHeader('Content-Type', content);
			}

			if (this.request.isAsync) {
				if (this.request.callback) {
					this.callbackComplete = false;
				}
				this.xmlhttp.onreadystatechange = function() { self._readyStateChangeCallback(); }
			} else {
				this.xmlhttp.onreadystatechange = function() {}
			}
			var payload = this.request.getSerializedPayload();
			if (payload) {
				this.xmlhttp.setRequestHeader('Content-Length', payload.length);
			}
			this.xmlhttp.send(payload);

			if (!this.request.isAsync) {
				if ( this.xmlhttp.status == 200 ) {
					HTML_AJAX.requestComplete(this.request);
					if (this.request.Load) {
						this.request.Load();
					} else if (HTML_AJAX.Load) {
						HTML_AJAX.Load(this.request);
					}
						
					return this._decodeResponse();
				} else {
					var e = new Error('['+this.xmlhttp.status +'] '+this.xmlhttp.statusText);
					e.headers = this.xmlhttp.getAllResponseHeaders();
					this._handleError(e);
				}
			}
			else {
				// setup timeout
				var self = this;
				this._timeoutId = window.setTimeout(function() { self.abort(true); },this.request.timeout);
			}
		} catch (e) {
			this._handleError(e);
		}
	},
	
	// abort an inprogress request
	abort: function (automatic) 
	{
		if (this.callInProgress()) {
			this.aborted = true;
			this.xmlhttp.abort();

			if (automatic) {
				HTML_AJAX.requestComplete(this.request);
				this._handleError(new Error('Request Timed Out: time out was '+this.request.timeout+'ms'));
			}
		}
	},

	// internal method used to handle ready state changes
	_readyStateChangeCallback:function() 
	{
		try {
			switch(this.xmlhttp.readyState) {
				// XMLHTTPRequest.open() has just been called
				case 1:
					break;
				// XMLHTTPRequest.send() has just been called
				case 2:
					if (this.request.Send) {
						this.request.Send();
					} else if (HTML_AJAX.Send) {
						HTML_AJAX.Send(this.request);
					}
					break;
				// Fetching response from server in progress
				case 3:
					if (this.request.Progress) {
						this.request.Progress();
					} else if (HTML_AJAX.Progress ) {
						HTML_AJAX.Progress(this.request);
					}
				break;
				// Download complete
				case 4:
					window.clearTimeout(this._timeoutId);
					if (this.aborted) {
						if (this.request.Load) {
							this.request.Load();
						} else if (HTML_AJAX.Load) {
							HTML_AJAX.Load(this.request);
						}
					}
					else if (this.xmlhttp.status == 200) {
						if (this.request.Load) {
							this.request.Load();
						} else if (HTML_AJAX.Load ) {
							HTML_AJAX.Load(this.request);
						}

						var response = this._decodeResponse();

						if (this.request.callback) {
							this.request.callback(response);
							this.callbackComplete = true;
						}
					}
					else {
						var e = new Error('HTTP Error Making Request: ['+this.xmlhttp.status+'] '+this.xmlhttp.statusText);
						this._handleError(e);
					}
					HTML_AJAX.requestComplete(this.request);
				break;
			}
		} catch (e) {
				this._handleError(e);
		}
	},

	// decode response as needed
	_decodeResponse: function() {
		//try for x-Content-Type first
		var content = null;
		try {
			content = this.xmlhttp.getResponseHeader('X-Content-Type');
		} catch(e) {}
		if(!content || content == null)
		{
			content = this.xmlhttp.getResponseHeader('Content-Type');
		}
		//strip anything after ;
		if(content.indexOf(';') != -1)
		{
			content = content.substring(0, content.indexOf(';'));
		}
		// hook for xml, it doesn't need to be unserialized
		if(content == 'application/xml' || content == 'text/xml')
		{
			return this.xmlhttp.responseXML;
		}
		var unserializer = HTML_AJAX.serializerForEncoding(content);
		//alert(this.xmlhttp.getAllResponseHeaders()); // some sort of debug hook is needed here
		return unserializer.unserialize(this.xmlhttp.responseText);
	},

	// handle sending an error where it needs to go
	_handleError: function(e) 
	{
		HTML_AJAX.requestComplete(this.request,e);
		if (this.request.onError) {
			this.request.onError(e);
		} else if (HTML_AJAX.onError) {
			HTML_AJAX.onError(e,this.request);
		}
		else {
			throw e;
		}
	}
}
/**
 * Class that is used by generated stubs to make actual AJAX calls
 *
 * @category    HTML
 * @package 	AJAX
 * @author	Joshua Eichorn <josh@bluga.net>
 * @copyright   2005 Joshua Eichorn
 * @license 	http://www.opensource.org/licenses/lgpl-license.php  LGPL
 */
function HTML_AJAX_Dispatcher(className,mode,callback,serverUrl,serializerType) 
{
	this.className = className;
	this.mode = mode;
	this.callback = callback;
	this.serializerType = serializerType;

	if (serverUrl) {
		this.serverUrl = serverUrl
	}
	else {
		this.serverUrl = window.location;
	}
}

HTML_AJAX_Dispatcher.prototype = {
	/**
	 * Queue to use when making a request
	 */
	queue: 'default',

	/**
	 * Timeout for async calls
	 */
	timeout: 20000,
 
	/**
	 * Default request priority
	 */
	priority: 0,

	/**
	 * Request options 
	 */
	options: {},
	
	/**
	 * Make an ajax call
	 *
	 * @param   string callName
	 * @param   Array   args	arguments to the report method
	 */
	doCall: function(callName,args) 
	{
		var request = new HTML_AJAX_Request();
		request.requestUrl = this.serverUrl;
		request.className = this.className;
		request.methodName = callName;
		request.timeout = this.timeout;
		request.contentType = this.contentType;
		request.serializer = eval('new HTML_AJAX_Serialize_'+this.serializerType);
		request.queue = this.queue;
		request.priority = this.priority;

		for(var i in this.options) {
			request[i] = this.options[i];
		}
		
		for(var i=0; i < args.length; i++) {
			request.addArg(i,args[i]);
		};

		if ( this.mode == "async" ) {
			request.isAsync = true;
			if (this.callback[callName]) {
				var self = this;
				request.callback = function(result) { self.callback[callName](result); }
			}

		} else {
			request.isAsync = false;
		}

		return HTML_AJAX.makeRequest(request);
	},

	Sync: function() 
	{
		this.mode = 'sync';
	},

	Async: function(callback)
	{
		this.mode = 'async';
		if (callback) {
			this.callback = callback;
		}
	}
};
/*
Copyright (c) 2005 JSON.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The Software shall be used for Good, not Evil.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

/*
    The global object JSON contains two methods.

    JSON.stringify(value) takes a JavaScript value and produces a JSON text.
    The value must not be cyclical.

    JSON.parse(text) takes a JSON text and produces a JavaScript value. It will
    throw a 'JSONError' exception if there is an error.
*/
var HTML_AJAX_JSON = {
    copyright: '(c)2005 JSON.org',
    license: 'http://www.crockford.com/JSON/license.html',
/*
    Stringify a JavaScript value, producing a JSON text.
*/
    stringify: function (v) {
        var a = [];

/*
    Emit a string.
*/
        function e(s) {
            a[a.length] = s;
        }

/*
    Convert a value.
*/
        function g(x) {
            var c, i, l, v;

            switch (typeof x) {
            case 'object':
                if (x) {
                    if (x instanceof Array) {
                        e('[');
                        l = a.length;
                        for (i = 0; i < x.length; i += 1) {
                            v = x[i];
                            if (typeof v != 'undefined' &&
                                    typeof v != 'function') {
                                if (l < a.length) {
                                    e(',');
                                }
                                g(v);
                            }
                        }
                        e(']');
                        return;
                    } else if (typeof x.valueOf == 'function') {
                        e('{');
                        l = a.length;
                        for (i in x) {
                            v = x[i];
                            if (typeof v != 'undefined' &&
                                    typeof v != 'function' &&
                                    (!v || typeof v != 'object' ||
                                        typeof v.valueOf == 'function')) {
                                if (l < a.length) {
                                    e(',');
                                }
                                g(i);
                                e(':');
                                g(v);
                            }
                        }
                        return e('}');
                    }
                }
                e('null');
                return;
            case 'number':
                e(isFinite(x) ? +x : 'null');
                return;
            case 'string':
                l = x.length;
                e('"');
                for (i = 0; i < l; i += 1) {
                    c = x.charAt(i);
                    if (c >= ' ') {
                        if (c == '\\' || c == '"') {
                            e('\\');
                        }
                        e(c);
                    } else {
                        switch (c) {
                        case '\b':
                            e('\\b');
                            break;
                        case '\f':
                            e('\\f');
                            break;
                        case '\n':
                            e('\\n');
                            break;
                        case '\r':
                            e('\\r');
                            break;
                        case '\t':
                            e('\\t');
                            break;
                        default:
                            c = c.charCodeAt();
                            e('\\u00' + Math.floor(c / 16).toString(16) +
                                (c % 16).toString(16));
                        }
                    }
                }
                e('"');
                return;
            case 'boolean':
                e(String(x));
                return;
            default:
                e('null');
                return;
            }
        }
        g(v);
        return a.join('');
    },
/*
    Parse a JSON text, producing a JavaScript value.
*/
    parse: function (text) {
        return 
(/^(\s+|[,:{}\[\]]|"(\\["\\\/bfnrtu]|[^\x00-\x1f"\\]+)*"|-?\d+(\.\d*)?([eE][+-]?\d+)?|true|false|null)+$/.test(text))
 &&
            eval('(' + text + ')');
    }
};/**
 * Utility methods
 *
 * @category	HTML
 * @package	Ajax
 * @license	http://www.opensource.org/licenses/lgpl-license.php  LGPL
 *
 * See Main.js for author/license details
 */
// {{{ HTML_AJAX_Util
/**
 * All the utilities we will be using thorough the classes
 */
var HTML_AJAX_Util = {
	// Set the element event
	registerEvent: function(element, event, handler) 
	{
		element = this.getElement(element);
		if (typeof element.addEventListener != "undefined") {   //Dom2
			element.addEventListener(event, handler, false);
		} else if (typeof element.attachEvent != "undefined") { //IE 5+
			element.attachEvent("on" + event, handler);
		} else {
			if (element["on" + event] != null) {
				var oldHandler = element["on" + event];
				element["on" + event] = function(e) {
					oldHander(e);
					handler(e);
				};
			} else {
				element["on" + event] = handler;
			}
		}
	},
	// get the target of an event, automatically checks window.event for ie
	eventTarget: function(event) 
	{
		if (!event) var event = window.event;
		if (event.target) return event.target; // w3c
		if (event.srcElement) return event.srcElement; // ie 5
	},
	// gets the type of a variable or its primitive equivalent as a string
	getType: function(inp) 
	{
		var type = typeof inp, match;
		if(type == 'object' && !inp)
		{
			return 'null';
		}
		if (type == "object") {
			if(!inp.constructor)
			{
				return 'object';
			}
			var cons = inp.constructor.toString();
			if (match = cons.match(/(\w+)\(/)) {
				cons = match[1].toLowerCase();
			}
			var types = ["boolean", "number", "string", "array"];
			for (key in types) {
				if (cons == types[key]) {
					type = types[key];
					break;
				}
			}
		}
		return type;
	},
	// repeats the input string the number of times given by multiplier. exactly like PHP's str_repeat()
	strRepeat: function(inp, multiplier) {
		var ret = "";
		while (--multiplier > 0) ret += inp;
		return ret;
	},
	// encode a string allowing it to be used in a query string of a url
	encodeUrl: function(input) {
		return encodeURIComponent(input);
	},
	// decode a url encoded string
	decodeUrl: function(input) {
		return decodeURIComponent(input);
	},
	// recursive variable dumper similar in output to PHP's var_dump(), the differences being: this function displays JS types and type names; JS doesn't provide an object number like PHP does
	varDump: function(inp, printFuncs, _indent, _recursionLevel)
	{
		if (!_recursionLevel) _recursionLevel = 0;
		if (!_indent) _indent = 1;
		var tab = this.strRepeat("  ", ++_indent);	
		var type = this.getType(inp), out = type;
		var consrx = /(\w+)\(/;
		consrx.compile();
		if (++_recursionLevel > 6) {
			return tab + inp + "Loop Detected\n";
		}
		switch (type) {
			case "boolean":
			case "number":
				out += "(" + inp.toString() + ")";
				break;
			case "string":
				out += "(" + inp.length + ") \"" + inp + "\"";
				break;
			case "function":
				if (printFuncs) {
					out += inp.toString().replace(/\n/g, "\n" + tab);
				}
				break;
			case "array":
			case "object":
				var atts = "", attc = 0;
				try {
					for (k in inp) {
						atts += tab + "[" + (/\D/.test(k) ? "\"" + k + "\"" : k)
							+ "]=>\n" + tab + this.varDump(inp[k], printFuncs, _indent, _recursionLevel);
						++attc;
					}
				} catch (e) {}
				if (type == "object") {
					var objname, objstr = inp.toString();
					if (objname = objstr.match(/^\[object (\w+)\]$/)) {
						objname = objname[1];
					} else {
						try {
							objname = inp.constructor.toString().match(consrx)[1];
						} catch (e) {
							objname = 'unknown';
						}
					}
					out += "(" + objname + ") ";
				}
				out += "(" + attc + ") {\n" + atts + this.strRepeat("  ", _indent - 1) +"}";
				break;
		}
		return out + "\n";
	},
	// non resursive simple debug printer
	quickPrint: function(input,sep) {
		if (!sep) {
			var sep = "\n";
		}
		var type = HTML_AJAX_Util.getType(input);
		switch (type) {
			case 'string':
				return input;
			case 'array':
				var ret = "";
				for(var i = 0; i < input.length; i++) {
					ret += i+':'+input[i]+sep;
				}
				return ret;
			default:
				var ret = "";
				for(var i in input) {
					ret += i+':'+input[i]+sep;
				}
				return ret;
		}
	},
	//compat function for stupid browsers in which getElementsByTag with a * dunna work
	getAllElements: function(parentElement)
	{
		//check for idiot browsers
		if( document.all)
		{
			if(!parentElement) {
				var allElements = document.all;
			}
			else
			{
				var allElements = [], rightName = new RegExp( parentElement, 'i' ), i;
				for( i=0; i<document.all.length; i++ ) {
					if( rightName.test( document.all[i].parentElement ) )
					allElements.push( document.all[i] );
				}
			}
			return allElements;
		}
		//real browsers just do this
		else
		{
			if (!parentElement) { parentElement = document.body; }
			return parentElement.getElementsByTagName('*');
		}
	},
	getElementsByProperty: function(property, regex, parentElement) {
		var allElements = HTML_AJAX_Util.getAllElements(parentElement);
		var items = [];
		for(var i=0,j=allElements.length; i<j; i++)
		{
			if(regex.test(allElements[i][property]))
			{
				items.push(allElements[i]);
			}
		}
		return items;
	},
	getElementsByClassName: function(className, parentElement) {
		return HTML_AJAX_Util.getElementsByProperty('className',new RegExp('(^| )' + className + '( |$)'),parentElement);
	},
	getElementsById: function(id, parentElement) {
		return HTML_AJAX_Util.getElementsByProperty('id',new RegExp(id),parentElement);
	},
	getElementsByCssSelector: function(selector,parentElement) {
		return cssQuery(selector,parentElement);
	},
	htmlEscape: function(inp) {
		var div = document.createElement('div');
		var text = document.createTextNode(inp);
		div.appendChild(text);
		return div.innerHTML;
	},
	// return the base of the given absolute url, or the filename if the second argument is true
	baseURL: function(absolute, filename) {
		var qPos = absolute.indexOf('?');
		if (qPos >= 0) {
			absolute = absolute.substr(0, qPos);
		}
		var slashPos = Math.max(absolute.lastIndexOf('/'), absolute.lastIndexOf('\\'));
		if (slashPos < 0) {
			return absolute;
		}
		return (filename ? absolute.substr(slashPos + 1) : absolute.substr(0, slashPos + 1));
	},
	// return the query string from a url
	queryString: function(url) {
		var qPos = url.indexOf('?');
		if (qPos >= 0) {
			return url.substr(qPos+1);
		}
	},
	// return the absolute path to the given relative url
	absoluteURL: function(rel, absolute) {
		if (/^https?:\/\//i.test(rel)) {
			return rel;
		}
		if (!absolute) {
			var bases = document.getElementsByTagName('base');
			for (i in bases) {
				if (bases[i].href) {
					absolute = bases[i].href;
					break;
				}
			}
			if (!absolute) {
				absolute = window.location.href;
			}
		}
		if (rel == '') {
			return absolute;
		}
		if (rel.substr(0, 2) == '//') {
			// starts with '//', replace everything but the protocol
			var slashesPos = absolute.indexOf('//');
			if (slashesPos < 0) {
				return 'http:' + rel;
			}
			return absolute.substr(0, slashesPos) + rel;
		}
		var base = this.baseURL(absolute);
		var absParts = base.substr(0, base.length - 1).split('/');
		var absHost = absParts.slice(0, 3).join('/') + '/';
		if (rel.substr(0, 1) == '/') {
			// starts with '/', append it to the host
			return absHost + rel;
		}
		if (rel.substr(0, 1) == '.' && rel.substr(1, 1) != '.') {
			// starts with '.', append it to the base
			return base + rel.substr(1);
		}
		// remove everything upto the path and beyond 
		absParts.splice(0, 3);
		var relParts = rel.split('/');
		var loopStart = relParts.length - 1;
		relParts = absParts.concat(relParts);
		for (i = loopStart; i < relParts.length;) {
			if (relParts[i] == '..') {
				if (i == 0) {
					return absolute;
				}
				relParts.splice(i - 1, 2);
				--i;
				continue;
			}
			i++;
		}
		return absHost + relParts.join('/');
	},
	// sets the innerHTML of an element. the third param decides how to write, it replaces by default, others are append|prepend
	setInnerHTML: function(node, innerHTML, type)
	{
		node = this.getElement(node);

		if (type != 'append') {
			if (type == 'prepend') {
				var oldHtml = node.innerHTML;
			}
			node.innerHTML = '';
		}
		var good_browser = (navigator.product == 'Gecko');
		var regex = /^([\s\S]*?)<script([\s\S]*?)>([\s\S]*?)<\/script>([\s\S]*)$/i;
		var regex_src = /src=["'](.*?)["']/i;
		var matches, id, script, output = '', subject = innerHTML;
		var scripts = [];

		while (true) {
			matches = regex.exec(subject);
			if (matches && matches[0]) {
				subject = matches[4];
				id = 'ih_' + Math.round(Math.random()*9999) + '_' + Math.round(Math.random()*9999);

				var startLen = matches[3].length;
				script = matches[3].replace(/document\.write\(([\s\S]*?)\)/ig, 
					'document.getElementById("' + id + '").innerHTML+=$1');

				output += matches[1];
				if (startLen != script.length) {
						output += '<span id="' + id + '"></span>';
				}
				
				output += '<script' + matches[2] + '>' + script + '</script>';
				if (good_browser) {
					continue;
				}
				if (script) {
					scripts.push(script);
				}
				if (regex_src.test(matches[2])) {
					var script_el = document.createElement("SCRIPT");
					var atts_regex = /(\w+)=["'](.*?)["']([\s\S]*)$/;
					var atts = matches[2];
					for (var i = 0; i < 5; i++) { 
						var atts_matches = atts_regex.exec(atts);
						if (atts_matches && atts_matches[0]) {
							script_el.setAttribute(atts_matches[1], atts_matches[2]);
							atts = atts_matches[3];
						} else {
							break;
						}
					}
					scripts.push(script_el);
				}
			} else {
				output += subject;
				break;
			}
		}
		innerHTML = output;

		if (good_browser) {
			var el = document.createElement('span');
			el.innerHTML = innerHTML;

			for(var i = 0; i < el.childNodes.length; i++) {
				node.appendChild(el.childNodes[i].cloneNode(true));
			}
		}
		else {
			node.innerHTML += innerHTML;
		}

		if (oldHtml) {
			node.innerHTML += oldHtml;
		}

		if (!good_browser) {
			for(var i = 0; i < scripts.length; i++) {
				if (HTML_AJAX_Util.getType(scripts[i]) == 'string') {
					scripts[i] = scripts[i].replace(/^\s*<!(\[CDATA\[|--)|((\/\/)?--|\]\])>\s*$/g, '');
					window.eval(scripts[i]);
				}
				else {
					node.appendChild(scripts[i]);
				}
			}
		}
		return;
	},
	classSep: '(^|$| )',
	hasClass: function(o, className) {
		var o = this.getElement(o);
		var regex = new RegExp(this.classSep + className + this.classSep);
		return regex.test(o.className);
	},
	addClass: function(o, className) {
		var o = this.getElement(o);
		if(!this.hasClass(o, className)) {
			o.className += " " + className;
		}
	},
	removeClass: function(o, className) {
		var o = this.getElement(o);
		var regex = new RegExp(this.classSep + className + this.classSep);
		o.className = o.className.replace(regex, " ");
	},
	replaceClass: function(o, oldClass, newClass) {
		var o = this.getElement(o);
		var regex = new RegExp(this.classSep + oldClass + this.classSep);
		o.className = o.className.replace(regex, newClass);
	},
	getElement: function(el) {
		if (typeof el == 'string') {
			return document.getElementById(el);
		}
		return el;
	}
}
// }}}