JSF = {version: '0.1'};

// for old browsers
window["undefined"] = window["undefined"];

/**
 * @class JSF
 * JSF core utilities and functions.
 * @singleton
 */

/**
 * Copies all the properties of config to obj.
 * @param {Object} obj The receiver of the properties
 * @param {Object} config The source of the properties
 * @param {Object} defaults A different object that will also be applied for default values
 * @return {Object} returns obj
 * @member JSF apply
 */
JSF.apply = function(o, c, defaults){
    if(defaults){
        // no "this" reference for friendly out of scope calls
        JSF.apply(o, defaults);
    }
    if(o && c && typeof c == 'object'){
        for(var p in c){
            o[p] = c[p];
        }
    }
    return o;
};

(function(){
    var idSeed = 0;
    var ua = navigator.userAgent.toLowerCase();

    var isStrict = document.compatMode == "CSS1Compat",
        isOpera = ua.indexOf("opera") > -1,
        isSafari = (/webkit|khtml/).test(ua),
        isSafari3 = isSafari && ua.indexOf('webkit/5') != -1,
        isIE = !isOpera && ua.indexOf("msie") > -1,
        isIE7 = !isOpera && ua.indexOf("msie 7") > -1,
        isGecko = !isSafari && ua.indexOf("gecko") > -1,
        isGecko3 = !isSafari && ua.indexOf("rv:1.9") > -1,
        isBorderBox = isIE && !isStrict,
        isWindows = (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1),
        isMac = (ua.indexOf("macintosh") != -1 || ua.indexOf("mac os x") != -1),
        isAir = (ua.indexOf("adobeair") != -1),
        isLinux = (ua.indexOf("linux") != -1),
        isSecure = window.location.href.toLowerCase().indexOf("https") === 0;

    // remove css image flicker
	if(isIE && !isIE7){
        try{
            document.execCommand("BackgroundImageCache", false, true);
        }catch(e){}
    }

    JSF.apply(JSF, {
        /**
         * True if the browser is in strict (standards-compliant) mode, as opposed to quirks mode
         * @type Boolean
         */
        isStrict : isStrict,
        /**
         * True if the page is running over SSL
         * @type Boolean
         */
        isSecure : isSecure,
        /**
         * True when the document is fully initialized and ready for action
         * @type Boolean
         */
        isReady : false,

        /**
         * True to automatically uncache orphaned JSF.Elements periodically (defaults to true)
         * @type Boolean
         */
        enableGarbageCollector : true,

        /**
         * True to automatically purge event listeners after uncaching an element (defaults to false).
         * Note: this only happens if enableGarbageCollector is true.
         * @type Boolean
         */
        enableListenerCollection:false,


        /**
         * URL to a blank file used by JSF when in secure mode for iframe src and onReady src to prevent
         * the IE insecure content warning (defaults to javascript:false).
         * @type String
         */
        SSL_SECURE_URL : "javascript:false",

        /**
         * URL to a 1x1 transparent gif image used by JSF to create inline icons with CSS background images. (Defaults to
         * "http://extjs.com/s.gif" and you should change this to a URL on your server).
         * @type String
         */
        //BLANK_IMAGE_URL : "http:/"+"/extjs.com/s.gif",

        /**
        * A reusable empty function
        * @property
         * @type Function
        */
        emptyFn : function(){},

        /**
         * Copies all the properties of config to obj if they don't already exist.
         * @param {Object} obj The receiver of the properties
         * @param {Object} config The source of the properties
         * @return {Object} returns obj
         */
        applyIf : function(o, c){
            if(o && c){
                for(var p in c){
                    if(typeof o[p] == "undefined"){ o[p] = c[p]; }
                }
            }
            return o;
        },

        /**
         * Applies event listeners to elements by selectors when the document is ready.
         * The event name is specified with an @ suffix.
<pre><code>
JSF.addBehaviors({
   // add a listener for click on all anchors in element with id foo
   '#foo a@click' : function(e, t){
       // do something
   },

   // add the same listener to multiple selectors (separated by comma BEFORE the @)
   '#foo a, #bar span.some-class@mouseover' : function(){
       // do something
   }
});
</code></pre>
         * @param {Object} obj The list of behaviors to apply
         */
        addBehaviors : function(o){
            if(!JSF.isReady){
                JSF.onReady(function(){
                    JSF.addBehaviors(o);
                });
                return;
            }
            var cache = {}; // simple cache for applying multiple behaviors to same selector does query multiple times
            for(var b in o){
                var parts = b.split('@');
                if(parts[1]){ // for Object prototype breakers
                    var s = parts[0];
                    if(!cache[s]){
                        cache[s] = JSF.select(s);
                    }
                    cache[s].on(parts[1], o[b]);
                }
            }
            cache = null;
        },

        /**
         * Generates unique ids. If the element already has an id, it is unchanged
         * @param {Mixed} el (optional) The element to generate an id for
         * @param {String} prefix (optional) Id prefix (defaults "ext-gen")
         * @return {String} The generated Id.
         */
        id : function(el, prefix){
            prefix = prefix || "ext-gen";
            el = JSF.getDom(el);
            var id = prefix + (++idSeed);
            return el ? (el.id ? el.id : (el.id = id)) : id;
        },

        /**
         * JSFends one class with another class and optionally overrides members with the passed literal. This class
         * also adds the function "override()" to the class that can be used to override
         * members on an instance.
         * * <p>
         * This function also supports a 2-argument call in which the subclass's constructor is
         * not passed as an argument. In this form, the parameters are as follows:</p><p>
         * <div class="mdetail-params"><ul>
         * <li><code>superclass</code>
         * <div class="sub-desc">The class being extended</div></li>
         * <li><code>overrides</code>
         * <div class="sub-desc">A literal with members which are copied into the subclass's
         * prototype, and are therefore shared among all instances of the new class.<p>
         * This may contain a special member named <tt><b>constructor</b></tt>. This is used
         * to define the constructor of the new class, and is returned. If this property is
         * <i>not</i> specified, a constructor is generated and returned which just calls the
         * superclass's constructor passing on its parameters.</p></div></li>
         * </ul></div></p><p>
         * For example, to create a subclass of the JSF GridPanel:
         * <pre><code>
    MyGridPanel = JSF.extend(JSF.grid.GridPanel, {
        constructor: function(config) {
            // Your preprocessing here
        	MyGridPanel.superclass.constructor.apply(this, arguments);
            // Your postprocessing here
        },

        yourMethod: function() {
            // etc.
        }
    });
</code></pre>
         * </p>
         * @param {Function} subclass The class inheriting the functionality
         * @param {Function} superclass The class being extended
         * @param {Object} overrides (optional) A literal with members which are copied into the subclass's
         * prototype, and are therefore shared between all instances of the new class.
         * @return {Function} The subclass constructor.
         * @method extend
         */
        extend : function(){
            // inline overrides
            var io = function(o){
                for(var m in o){
                    this[m] = o[m];
                }
            };
            var oc = Object.prototype.constructor;

            return function(sb, sp, overrides){
                if(typeof sp == 'object'){
                    overrides = sp;
                    sp = sb;
                    sb = overrides.constructor != oc ? overrides.constructor : function(){sp.apply(this, arguments);};
                }
                var F = function(){}, sbp, spp = sp.prototype;
                F.prototype = spp;
                sbp = sb.prototype = new F();
                sbp.constructor=sb;
                sb.superclass=spp;
                if(spp.constructor == oc){
                    spp.constructor=sp;
                }
                sb.override = function(o){
                    JSF.override(sb, o);
                };
                sbp.override = io;
                JSF.override(sb, overrides);
                sb.extend = function(o){JSF.extend(sb, o);};
                return sb;
            };
        }(),

        /**
         * Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name.
         * Usage:<pre><code>
JSF.override(MyClass, {
    newMethod1: function(){
        // etc.
    },
    newMethod2: function(foo){
        // etc.
    }
});
 </code></pre>
         * @param {Object} origclass The class to override
         * @param {Object} overrides The list of functions to add to origClass.  This should be specified as an object literal
         * containing one or more methods.
         * @method override
         */
        override : function(origclass, overrides){
            if(overrides){
                var p = origclass.prototype;
                for(var method in overrides){
                    p[method] = overrides[method];
                }
            }
        },

        /**
         * Creates namespaces to be used for scoping variables and classes so that they are not global.  Usage:
         * <pre><code>
JSF.namespace('Company', 'Company.data');
Company.Widget = function() { ... }
Company.data.CustomStore = function(config) { ... }
</code></pre>
         * @param {String} namespace1
         * @param {String} namespace2
         * @param {String} etc
         * @method namespace
         */
        namespace : function(){
            var a=arguments, o=null, i, j, d, rt;
            for (i=0; i<a.length; ++i) {
                d=a[i].split(".");
                rt = d[0];
                eval('if (typeof ' + rt + ' == "undefined"){' + rt + ' = {};} o = ' + rt + ';');
                for (j=1; j<d.length; ++j) {
                    o[d[j]]=o[d[j]] || {};
                    o=o[d[j]];
                }
            }
        },

        /**
         * Takes an object and converts it to an encoded URL. e.g. JSF.urlEncode({foo: 1, bar: 2}); would return "foo=1&bar=2".  Optionally, property values can be arrays, instead of keys and the resulting string that's returned will contain a name/value pair for each array value.
         * @param {Object} o
         * @return {String}
         */
        urlEncode : function(o){
            if(!o){
                return "";
            }
            var buf = [];
            for(var key in o){
                var ov = o[key], k = encodeURIComponent(key);
                var type = typeof ov;
                if(type == 'undefined'){
                    buf.push(k, "=&");
                }else if(type != "function" && type != "object"){
                    buf.push(k, "=", encodeURIComponent(ov), "&");
                }else if(JSF.isArray(ov)){
                    if (ov.length) {
	                    for(var i = 0, len = ov.length; i < len; i++) {
	                        buf.push(k, "=", encodeURIComponent(ov[i] === undefined ? '' : ov[i]), "&");
	                    }
	                } else {
	                    buf.push(k, "=&");
	                }
                }
            }
            buf.pop();
            return buf.join("");
        },

        /**
         * Takes an encoded URL and and converts it to an object. e.g. JSF.urlDecode("foo=1&bar=2"); would return {foo: 1, bar: 2} or JSF.urlDecode("foo=1&bar=2&bar=3&bar=4", true); would return {foo: 1, bar: [2, 3, 4]}.
         * @param {String} string
         * @param {Boolean} overwrite (optional) Items of the same name will overwrite previous values instead of creating an an array (Defaults to false).
         * @return {Object} A literal with members
         */
        urlDecode : function(string, overwrite){
            if(!string || !string.length){
                return {};
            }
            var obj = {};
            var pairs = string.split('&');
            var pair, name, value;
            for(var i = 0, len = pairs.length; i < len; i++){
                pair = pairs[i].split('=');
                name = decodeURIComponent(pair[0]);
                value = decodeURIComponent(pair[1]);
                if(overwrite !== true){
                    if(typeof obj[name] == "undefined"){
                        obj[name] = value;
                    }else if(typeof obj[name] == "string"){
                        obj[name] = [obj[name]];
                        obj[name].push(value);
                    }else{
                        obj[name].push(value);
                    }
                }else{
                    obj[name] = value;
                }
            }
            return obj;
        },

        /**
         * Iterates an array calling the passed function with each item, stopping if your function returns false. If the
         * passed array is not really an array, your function is called once with it.
         * The supplied function is called with (Object item, Number index, Array allItems).
         * @param {Array/NodeList/Mixed} array
         * @param {Function} fn
         * @param {Object} scope
         */
        each : function(array, fn, scope){
            if(typeof array.length == "undefined" || typeof array == "string"){
                array = [array];
            }
            for(var i = 0, len = array.length; i < len; i++){
                if(fn.call(scope || array[i], array[i], i, array) === false){ return i; };
            }
        },

        // deprecated
        combine : function(){
            var as = arguments, l = as.length, r = [];
            for(var i = 0; i < l; i++){
                var a = as[i];
                if(JSF.isArray(a)){
                    r = r.concat(a);
                }else if(a.length !== undefined && !a.substr){
                    r = r.concat(Array.prototype.slice.call(a, 0));
                }else{
                    r.push(a);
                }
            }
            return r;
        },

        /**
         * Escapes the passed string for use in a regular expression
         * @param {String} str
         * @return {String}
         */
        escapeRe : function(s) {
            return s.replace(/([.*+?^${}()|[\]\/\\])/g, "\\$1");
        },

        // internal
        callback : function(cb, scope, args, delay){
            if(typeof cb == "function"){
                if(delay){
                    cb.defer(delay, scope, args || []);
                }else{
                    cb.apply(scope, args || []);
                }
            }
        },

        /**
         * Return the dom node for the passed string (id), dom node, or JSF.Element
         * @param {Mixed} el
         * @return HTMLElement
         */
        getDom : function(el){
            if(!el || !document){
                return null;
            }
            return el.dom ? el.dom : (typeof el == 'string' ? document.getElementById(el) : el);
        },


		addEvent : function(type, fun){ 

			if(isIE){
				window.attachEvent("on"+type, fun);
			}else{
				window.addEventListener(type, fun, false);
			}
		},

        /**
        * Returns the current HTML document object as an {@link JSF.Element}.
        * @return JSF.Element The document
        */
        getDoc : function(){
            return JSF.get(document);
        },

        /**
        * Returns the current document body as an {@link JSF.Element}.
        * @return JSF.Element The document body
        */
        getBody : function(){
            return JSF.get(document.body || document.documentElement);
        },

        /**
        * Shorthand for {@link JSF.ComponentMgr#get}
        * @param {String} id
        * @return JSF.Component
        */
        getCmp : function(id){
            return JSF.ComponentMgr.get(id);
        },

        /**
         * Utility method for validating that a value is numeric, returning the specified default value if it is not.
         * @param {Mixed} value Should be a number, but any type will be handled appropriately
         * @param {Number} defaultValue The value to return if the original value is non-numeric
         * @return {Number} Value, if numeric, else defaultValue
         */
        num : function(v, defaultValue){
            if(typeof v != 'number'){
                return defaultValue;
            }
            return v;
        },

        /**
         * Attempts to destroy any objects passed to it by removing all event listeners, removing them from the
         * DOM (if applicable) and calling their destroy functions (if available).  This method is primarily
         * intended for arguments of type {@link JSF.Element} and {@link JSF.Component}, but any subclass of
         * {@link JSF.util.Observable} can be passed in.  Any number of elements and/or components can be
         * passed into this function in a single call as separate arguments.
         * @param {Mixed} arg1 An {@link JSF.Element} or {@link JSF.Component} to destroy
         * @param {Mixed} arg2 (optional)
         * @param {Mixed} etc... (optional)
         */
        destroy : function(){
            for(var i = 0, a = arguments, len = a.length; i < len; i++) {
                var as = a[i];
                if(as){
		            if(typeof as.destroy == 'function'){
		                as.destroy();
		            }
		            else if(as.dom){
		                as.removeAllListeners();
		                as.remove();
		            }
                }
            }
        },

        /**
         * Removes a DOM node from the document.  The body node will be ignored if passed in.
         * @param {HTMLElement} node The node to remove
         */
        removeNode : isIE ? function(){
            var d;
            return function(n){
                if(n && n.tagName != 'BODY'){
                    d = d || document.createElement('div');
                    d.appendChild(n);
                    d.innerHTML = '';
                }
            }
        }() : function(n){
            if(n && n.parentNode && n.tagName != 'BODY'){
                n.parentNode.removeChild(n);
            }
        },

        // inpired by a similar function in mootools library
        /**
         * Returns the type of object that is passed in. If the object passed in is null or undefined it
         * return false otherwise it returns one of the following values:<ul>
         * <li><b>string</b>: If the object passed is a string</li>
         * <li><b>number</b>: If the object passed is a number</li>
         * <li><b>boolean</b>: If the object passed is a boolean value</li>
         * <li><b>function</b>: If the object passed is a function reference</li>
         * <li><b>object</b>: If the object passed is an object</li>
         * <li><b>array</b>: If the object passed is an array</li>
         * <li><b>regexp</b>: If the object passed is a regular expression</li>
         * <li><b>element</b>: If the object passed is a DOM Element</li>
         * <li><b>nodelist</b>: If the object passed is a DOM NodeList</li>
         * <li><b>textnode</b>: If the object passed is a DOM text node and contains something other than whitespace</li>
         * <li><b>whitespace</b>: If the object passed is a DOM text node and contains only whitespace</li>
         * @param {Mixed} object
         * @return {String}
         */
        type : function(o){
            if(o === undefined || o === null){
                return false;
            }
            if(o.htmlElement){
                return 'element';
            }
            var t = typeof o;
            if(t == 'object' && o.nodeName) {
                switch(o.nodeType) {
                    case 1: return 'element';
                    case 3: return (/\S/).test(o.nodeValue) ? 'textnode' : 'whitespace';
                }
            }
            if(t == 'object' || t == 'function') {
                switch(o.constructor) {
                    case Array: return 'array';
                    case RegExp: return 'regexp';
                }
                if(typeof o.length == 'number' && typeof o.item == 'function') {
                    return 'nodelist';
                }
            }
            return t;
        },

        /**
         * Returns true if the passed value is null, undefined or an empty string (optional).
         * @param {Mixed} value The value to test
         * @param {Boolean} allowBlank (optional) Pass true if an empty string is not considered empty
         * @return {Boolean}
         */
        isEmpty : function(v, allowBlank){
            return v === null || v === undefined || (!allowBlank ? v === '' : false);
        },

        value : function(v, defaultValue, allowBlank){
            return JSF.isEmpty(v, allowBlank) ? defaultValue : v;
        },

        /**
         * Returns true if the passed object is a JavaScript array, otherwise false.
         * @param {Object} The object to test
         * @return {Boolean}
         */
		isArray : function(v){
			return v && typeof v.length == 'number' && typeof v.splice == 'function';
		},

		/**
         * Returns true if the passed object is a JavaScript date object, otherwise false.
         * @param {Object} The object to test
         * @return {Boolean}
         */
		isDate : function(v){
			return v && typeof v.getFullYear == 'function';
		},

        /**
         * True if the detected browser is Opera.
         * @type Boolean
         */
        isOpera : isOpera,
        /**
         * True if the detected browser is Safari.
         * @type Boolean
         */
        isSafari : isSafari,
        /**
         * True if the detected browser is Safari 3.x.
         * @type Boolean
         */
        isSafari3 : isSafari3,
        /**
         * True if the detected browser is Safari 2.x.
         * @type Boolean
         */
        isSafari2 : isSafari && !isSafari3,
        /**
         * True if the detected browser is Internet Explorer.
         * @type Boolean
         */
        isIE : isIE,
        /**
         * True if the detected browser is Internet Explorer 6.x.
         * @type Boolean
         */
        isIE6 : isIE && !isIE7,
        /**
         * True if the detected browser is Internet Explorer 7.x.
         * @type Boolean
         */
        isIE7 : isIE7,
        /**
         * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
         * @type Boolean
         */
        isGecko : isGecko,
        /**
         * True if the detected browser uses a pre-Gecko 1.9 layout engine (e.g. Firefox 2.x).
         * @type Boolean
         */
        isGecko2 : isGecko && !isGecko3,
        /**
         * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
         * @type Boolean
         */
        isGecko3 : isGecko3,
        /**
         * True if the detected browser is Internet Explorer running in non-strict mode.
         * @type Boolean
         */
        isBorderBox : isBorderBox,
        /**
         * True if the detected platform is Linux.
         * @type Boolean
         */
        isLinux : isLinux,
        /**
         * True if the detected platform is Windows.
         * @type Boolean
         */
        isWindows : isWindows,
        /**
         * True if the detected platform is Mac OS.
         * @type Boolean
         */
        isMac : isMac,
        /**
         * True if the detected platform is Adobe Air.
         * @type Boolean
         */
        isAir : isAir,

	    /**
	     * By default, JSF intelligently decides whether floating elements should be shimmed. If you are using flash,
	     * you may want to set this to true.
	     * @type Boolean
	     */
        useShims : ((isIE && !isIE7) || (isMac && isGecko && !isGecko3))
    });

    // in intellij using keyword "namespace" causes parsing errors
    JSF.ns = JSF.namespace;
})();


Ajax = {messageBox: "msgbox", jobList: []};

Ajax.setMessageBox = function(_id)
{
	this.messageBox = _id;
};
	
Ajax.makeRequest = function(method, url, callbackMethod, data)
{
	//this.request = (window.XMLHttpRequest)? new XMLHttpRequest(): new ActiveXObject("MSXML2.XMLHTTP"); 
	try	{
		if( window.ActiveXObject ) {
			for( var i = 5; i; i-- ) {
				try	{
					if( i == 2 ) {
						this.request = new ActiveXObject( "Microsoft.XMLHTTP" );
					} else {
						this.request = new ActiveXObject( "Msxml2.XMLHTTP." + i + ".0" );
					}
					//this.request.setRequestHeader("Content-Type","text/xml");
					//this.request.setRequestHeader("Content-Type","gb2312");
					
					break;
				} catch(e) {
					this.request = false;
					this.setMessage("程序发生对象创建失败错误!", 1, 2000);
				}
				
			}
		} else if( window.XMLHttpRequest ) {
			this.request = new XMLHttpRequest();
			if (this.request.overrideMimeType) {
				//this.request.overrideMimeType('text/xml');
			}
		}

	} catch(e) {
		this.request = false;
		this.setMessage("程序发生对象创建失败错误!", 1, 2000);
	} 
	
	this.request.onreadystatechange = callbackMethod;
	this.request.open(method, url, true);
	
	if(method == "POST") {
		this.request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		this.request.send(data);
	}else{
		this.request.send(null);
	}
	
};



Ajax.checkReadyState = function()
{
	switch(this.request.readyState)
	{
		case 1:
			//this.setMessage("加载中 ...", 0,2000);
			break;
		case 2:
			//this.setMessage("加载中 ...", 0,2000);
			break;
		case 3:
			//this.setMessage("加载中 ...", 0,2000);
			break;
		case 4:
			AjaxUpdater.isUpdating = false;
			//this.setMessage("操作成功", 0,1000);
			return HTTP.status(this.request.status);
		default:
			this.setMessage("程序因发生未知错误得到未知错误状态!", 1, 2000);
	}
};



Ajax.setMessage = function(_message, _times){

	var el = document.getElementById(this.messageBox);

	try{
		el.innerHTML = _message;
		el.style.display = "block";
	}catch(e){	}
 	
 	_times = (_times) ? _times : 2000;
	setTimeout("try{document.getElementById(Ajax.messageBox).innerHTML='';document.getElementById(Ajax.messageBox).style.display='none';}catch(ex){}", _times);

};



Ajax.getResponse = function() {
	return this.request.responseText;
};


Ajax.add = function(handler){

	if(!AjaxUpdater.isUpdating){
		handler();
	}else{
		Ajax.jobList.push(handler);
	}
	
};






AjaxUpdater = {};

AjaxUpdater.initialize = function()
{
	AjaxUpdater.isUpdating = false;
}

AjaxUpdater.initialize();

AjaxUpdater.Update = function(method , service, callback, data)
{
	if(callback == undefined || callback == "")
	{
		Ajax.setMessage("请为事件指定合法的句柄！", 1, 0);
		AjaxUpdater.isUpdating = false;
		return;
	}
	Ajax.makeRequest(method, service, callback, data);
	AjaxUpdater.isUpdating = true;
}
HTTP = {};

HTTP.status = function(_status)
{
	var s = _status.toString().split("");
	switch(s[0])
	{
		case "1":
			return HTTP.getInformationalStatus(_status);
			break;
		case "2":
			return HTTP.getSuccessfulStatus(_status);
			break;
		case "3":
			return HTTP.getRedirectionStatus(_status);
			break;
		case "4":
			return HTTP.getClientErrorStatus(_status);
			break;
		case "5":
			return HTTP.getServerErrorStatus(_status);
			break;
		default:
			return "An unexpected error has occured.";
	}
}
	
HTTP.getInformationalStatus = function(_status)
{
	// Informational 1xx
	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.1
	switch(_status)
	{
		case 100:
			return "Continue";
			break;
		case 101:
			return "Switching Protocols";
			break;
		default:
			return "An unexpected error has occured.";
	}
}
	
HTTP.getSuccessfulStatus = function(_status)
{
	// Successful 2xx
	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2
	switch(_status)
	{
		case 200:
			return "OK";
			break;
		case 201:
			return "Created";
			break;
		case 202:
			return "Accepted";
			break;
		case 203:
			return "Non-Authoritative Information";
			break;
		case 204:
			return "No Content";
			break;
		case 205:
			return "Reset Content";
			break;
		case 206:
			return "Partial Content";
			break;
		default:
			return "An unexpected error has occured.";
	}
}
	
HTTP.getRedirectionStatus = function(_status)
{
	// Redirection 3xx
	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3
	switch(_status)
	{
		case 300:
			return "Multiple Choices";
			break;
		case 301:
			return "Moved Permanently";
			break;
		case 302:
			return "Found";
			break;
		case 303:
			return "See Other";
			break;
		case 304:
			return "Not Modified";
			break;
		case 305:
			return "Use Proxy";
			break;
		case 307:
			return "Temporary Redirect";
			break;
		default:
			return "An unexpected error has occured.";
	}
}
	
HTTP.getClientErrorStatus = function(_status)
{
	// Client Error 4xx
	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4
	switch(_status)
	{
		case 400:
			return "Bad Request";
			break;
		case 401:
			return "Unauthorized";
			break;
		case 402:
			return "Payment Required";
			break;
		case 403:
			return "Forbidden";
			break;
		case 404:
			return "File not found";
			break;
		case 405:
			return "Method Not Allowed";
			break;
		case 406:
			return "Not Acceptable";
			break;
		case 407:
			return "Proxy Authentication Required";
			break;
		case 408:
			return "Request Timeout";
			break;
		case 409:
			return "Conflict";
			break;
		case 410:
			return "Gone";
			break;
		case 411:
			return "Length Required";
			break;
		case 412:
			return "Precondition Failed";
			break;
		case 413:
			return "Request Entity Too Large";
			break;
		case 414:
			return "Request-URI Too Long";
			break;
		case 415:
			return "Unsupported Media Type";
			break;
		case 416:
			return "Requested Range Not Satisfiable";
			break;
		case 417:
			return "Expectation Failed";
			break;
		default:
			return "An unexpected error has occured.";
	}
}
	
HTTP.getServerErrorStatus = function(_status)
{
	// Server Error 5xx
	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5
	switch(_status)
	{
		case 500:
			return "Internal Server Error";
			break;
		case 501:
			return "Not Implemented";
			break;
		case 502:
			return "Bad Gateway";
			break;
		case 503:
			return "Service Unavailable";
			break;
		case 504:
			return "Gateway Timeout";
			break;
		case 505:
			return "HTTP Version Not Supported";
			break;
		default:
			return "An unexpected error has occured.";
	}
}/*
    json.js
    2007-03-20

    Public Domain

    This file adds these methods to JavaScript:

        array.toJSONString()
        boolean.toJSONString()
        date.toJSONString()
        number.toJSONString()
        object.toJSONString()
        string.toJSONString()
            These methods produce a JSON text from a JavaScript value.
            It must not contain any cyclical references. Illegal values
            will be excluded.

            The default conversion for dates is to an ISO string. You can
            add a toJSONString method to any date object to get a different
            representation.

        string.parseJSON(filter)
            This method parses a JSON text to produce an object or
            array. It can throw a SyntaxError exception.

            The optional filter parameter is a function which can filter and
            transform the results. It receives each of the keys and values, and
            its return value is used instead of the original value. If it
            returns what it received, then structure is not modified. If it
            returns undefined then the member is deleted.

            Example:

            // Parse the text. If a key contains the string 'date' then
            // convert the value to a date.

            myData = text.parseJSON(function (key, value) {
                return key.indexOf('date') >= 0 ? new Date(value) : value;
            });

    It is expected that these methods will formally become part of the
    JavaScript Programming Language in the Fourth Edition of the
    ECMAScript standard in 2008.

    This file will break programs with improper for..in loops. See
    http://yuiblog.com/blog/2006/09/26/for-in-intrigue/

    This is a reference implementation. You are free to copy, modify, or
    redistribute.

    Use your own copy. It is extremely unwise to load untrusted third party
    code into your pages.
*/

// Augment the basic prototypes if they have not already been augmented.

if (!Object.prototype.toJSONString) {

    Array.prototype.toJSONString = function () {
        var a = ['['],  // The array holding the text fragments.
            b,          // A boolean indicating that a comma is required.
            i,          // Loop counter.
            l = this.length,
            v;          // The value to be stringified.

        function p(s) {

// p accumulates text fragments in an array. It inserts a comma before all
// except the first fragment.

            if (b) {
                a.push(',');
            }
            a.push(s);
            b = true;
        }

// For each value in this array...

        for (i = 0; i < l; i += 1) {
            v = this[i];
            switch (typeof v) {

// Serialize a JavaScript object value. Ignore objects thats lack the
// toJSONString method. Due to a specification error in ECMAScript,
// typeof null is 'object', so watch out for that case.

            case 'object':
                if (v) {
                    if (typeof v.toJSONString === 'function') {
                        p(v.toJSONString());
                    }
                } else {
                    p("null");
                }
                break;

// Otherwise, serialize the value.

            case 'string':
            case 'number':
            case 'boolean':
                p(v.toJSONString());

// Values without a JSON representation are ignored.

            }
        }

// Join all of the fragments together and return.

        a.push(']');
        return a.join('');
    };


    Boolean.prototype.toJSONString = function () {
        return String(this);
    };


    Date.prototype.toJSONString = function () {

// Ultimately, this method will be equivalent to the date.toISOString method.

        function f(n) {

// Format integers to have at least two digits.

            return n < 10 ? '0' + n : n;
        }

        return '"' + this.getFullYear() + '-' +
                f(this.getMonth() + 1) + '-' +
                f(this.getDate()) + 'T' +
                f(this.getHours()) + ':' +
                f(this.getMinutes()) + ':' +
                f(this.getSeconds()) + '"';
    };


    Number.prototype.toJSONString = function () {

// JSON numbers must be finite. Encode non-finite numbers as null.

        return isFinite(this) ? String(this) : "null";
    };


    Object.prototype.toJSONString = function () {
        var a = ['{'],  // The array holding the text fragments.
            b,          // A boolean indicating that a comma is required.
            k,          // The current key.
            v;          // The current value.

        function p(s) {

// p accumulates text fragment pairs in an array. It inserts a comma before all
// except the first fragment pair.

            if (b) {
                a.push(',');
            }
            a.push(k.toJSONString(), ':', s);
            b = true;
        }

// Iterate through all of the keys in the object, ignoring the proto chain.

        for (k in this) {
            if (this.hasOwnProperty(k)) {
                v = this[k];
                switch (typeof v) {

// Serialize a JavaScript object value. Ignore objects that lack the
// toJSONString method. Due to a specification error in ECMAScript,
// typeof null is 'object', so watch out for that case.

                case 'object':
                    if (v) {
                        if (typeof v.toJSONString === 'function') {
                            p(v.toJSONString());
                        }
                    } else {
                        p("null");
                    }
                    break;

            case 'string':
            case 'number':
            case 'boolean':
                    p(v.toJSONString());

// Values without a JSON representation are ignored.

                }
            }
        }

// Join all of the fragments together and return.

        a.push('}');
        return a.join('');
    };


    (function (s) {

// Augment String.prototype. We do this in an immediate anonymous function to
// avoid defining global variables.

// m is a table of character substitutions.

        var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        };


        s.parseJSON = function (filter) {

// Parsing happens in three stages. In the first stage, we run the text against
// a regular expression which looks for non-JSON characters. We are especially
// concerned with '()' and 'new' because they can cause invocation, and '='
// because it can cause mutation. But just to be safe, we will reject all
// unexpected characters.

            try {
                if (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.
                        test(this)) {

// In the second stage we use the eval function to compile the text into a
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
// in JavaScript: it can begin a block or an object literal. We wrap the text
// in parens to eliminate the ambiguity.

                    var j = eval('(' + this + ')');

// In the optional third stage, we recursively walk the new structure, passing
// each name/value pair to a filter function for possible transformation.

                    if (typeof filter === 'function') {

                        function walk(k, v) {
                            if (v && typeof v === 'object') {
                                for (var i in v) {
                                    if (v.hasOwnProperty(i)) {
                                        v[i] = walk(i, v[i]);
                                    }
                                }
                            }
                            return filter(k, v);
                        }

                        j = walk('', j);
                    }
                    return j;
                }
            } catch (e) {

// Fall through if the regexp test fails.

            }
            throw new SyntaxError("parseJSON");
        };


        s.toJSONString = function () {

// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can simply slap some quotes around it.
// Otherwise we must also replace the offending characters with safe
// sequences.

            if (/["\\\x00-\x1f]/.test(this)) {
                return '"' + this.replace(/([\x00-\x1f\\"])/g, function(a, b) {
                    var c = m[b];
                    if (c) {
                        return c;
                    }
                    c = b.charCodeAt();
                    return '\\u00' +
                        Math.floor(c / 16).toString(16) +
                        (c % 16).toString(16);
                }) + '"';
            }
            return '"' + this + '"';
        };
    })(String.prototype);
}
JSF.doAjax = function(method , service, callback, data){
	AjaxUpdater.Update(method , service, function(){
		if(Ajax.checkReadyState() == "OK")	{
			var res = Ajax.getResponse().parseJSON();
			callback(res);
			if(Ajax.jobList.length > 0){
				var handle = Ajax.jobList.shift();
				handle();
			}
		}
	}, data);
};