//Ajax ¸ðµâ (2009-05-21) Method Type GET Onlye

function AjaxWidget(uElementI, uElementO, uURLString, uURL) {

	this.xmlhttp = null;
	this.resetData = function() {
		this.method = "GET";
		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = true;
		this.execute = false;
		this.keyElement = null;
		this.element = null;
		this.elementObj = null;
		this.reqFile = "";
		this.vars = new Object();
		this.responseStatus = new Array(2);
	};

	this.resetFunctions = function() {
  		this.onLoading = function() {  };
  		this.onLoaded = function() { };
  		this.onInteractive = function() { };
  		this.onCompletion = function() { };
  		this.onError = function() { };
		this.onFail = function() { };
	};
	
	this.reset = function() {
		this.resetFunctions();
		this.resetData();
	};

	this.createAJAX = function() {

		try {
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) {
			try {
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				this.xmlhttp = null;
			}
		}

		if (! this.xmlhttp) {
			if (typeof XMLHttpRequest != "undefined") {
				this.xmlhttp = new XMLHttpRequest();
			} else {
				this.failed = true;
			}
		}
	};
	
	this.setVar = function(name, value){
		this.vars[name] = Array(value, false);
	};

	this.encVar = function(name, value, returnvars) 
	{
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}
	
	//URLString ÆĽÌ
	this.processURLString = function(string, encode) 
	{
		encoded = encodeURIComponent(this.argumentSeparator);
		regexp = new RegExp(this.argumentSeparator + "|" + encoded);
		
		varArray = string.split(regexp);
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split("=");
			
			if (true == encode){
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				this.setVar(urlVars[0], urlVars[1]);
			}
		}
	}

	this.createURLString = function() 
	{
		if (this.encodeURIString && this.URLString.length) {
			this.processURLString(this.URLString, true);
		}
		
		if (this.URLString.length) {
			this.URLString += this.argumentSeparator;
		} else {
			this.URLString = "";
		}

		var urlstringtemp = new Array();

		for (key in this.vars) {
			if (false == this.vars[key][1] && true == this.encodeURIString) {
				encoded = this.encVar(key, this.vars[key][0], true);
				delete this.vars[key];
				this.vars[encoded[0]] = Array(encoded[1], true);
				key = encoded[0];
			}
			urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
		}

		if (this.URLString){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.runResponse = function() {

		eval(this.response);
	}

	this.runAJAX = function() { 
		if (this.failed) {
			this.onFail();
		} else {

			this.createURLString();
			if (this.element) {
				this.elementObj = document.getElementById(this.element);
			}

			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					totalurlstring = this.reqFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, false);
					
				} else {
				
					this.xmlhttp.open(this.method, this.reqFile, false);
					try {
						this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

					} catch (e) { }
				}
			
				this.xmlhttp.onreadystatechange = function() {

					switch (self.xmlhttp.readyState) {
						case 1:
							self.onLoading();
							break;
						case 2:
							self.onLoaded();
							break;
						case 3:
							self.onInteractive();
							break;
						case 4:
							self.response = self.xmlhttp.responseText;
							self.responseXML = self.xmlhttp.responseXML;
							self.responseStatus[0] = self.xmlhttp.status;
							self.responseStatus[1] = self.xmlhttp.statusText;
							if (self.execute) {
								self.runResponse();
							}
						
							if (self.elementObj) {
								elemNodeName = self.elementObj.nodeName;
								elemNodeName = elemNodeName.toLowerCase();
								if (elemNodeName == "input" || 
									elemNodeName == "select" || 
									elemNodeName == "option" || 
									elemNodeName == "textarea") {
									self.elementObj.value = self.response;
									
								} else { //DIV
									self.elementObj.innerHTML = self.response;
								}
							}

							if (self.responseStatus[0] == "200") {
								
								self.onCompletion();
							} else {
								self.onError();
							}
							
							self.URLString = "";
							delete self.xmlhttp['onreadystatechange'];
							self.xmlhttp=null;
							self.responseStatus=null;
							self.response=null;
							self.responseXML=null;
							break;
					}
				};
				
				this.xmlhttp.send(this.URLString);

				if(is_firefox && this.xmlhttp.responseText)
				{
					elemNodeName = self.elementObj.nodeName;
					elemNodeName = elemNodeName.toLowerCase();
					
					if (elemNodeName == "input" || 
									elemNodeName == "select" || 
									elemNodeName == "option" || 
									elemNodeName == "textarea") {
									this.elementObj.value = this.xmlhttp.responseText;
									
					} else { //DIV
						this.elementObj.innerHTML = this.xmlhttp.responseText;	
					}
				}
			}
		}
	};

	this.reset();
	this.keyElement = uElementI;
	this.element = uElementO;
	this.URLString = uURLString;
	this.reqFile = uURL;

	this.createAJAX();
	this.runAJAX();
	
	return;
}