/* Simple AJAX Code-Kit (SACK) v1.6.1 | ©2005 Gregory Wild-Smith | www.twilightuniverse.com | Software licenced under a modified X11 licence, see authors website for more details */

// Ajax
function Ajax(file) {
	this.xmlhttp = null;

	this.resetData = function() {this.method = "POST";this.queryStringSeparator = "?";this.argumentSeparator = "&";this.URLString = "";
		this.encodeURIString = true;this.execute = false;this.noCache = false;this.requestFile = file;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.runResponse = function() {
		eval(this.response);
	}

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

			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					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 = self.xmlhttp.status;
							self.responseText = self.xmlhttp.statusText;

							if (self.responseStatus == "200") {
								self.onCompletion();
							} else {
								self.onError();
							}
                            
                            if (self.debug) {
                                showDebugWindow(self.response);
                            }
                            
							self.URLString = "";
							break;
					}
				};

				this.xmlhttp.send(this.URLString);
			}
		}
	};

	this.encVar = function(name, value, returnvars) {
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}

	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(urlstring) {
		if (this.encodeURIString && this.URLString.length) {
			this.processURLString(this.URLString, true);
		}

		if (urlstring) {
			if (this.URLString.length) {
				this.URLString += this.argumentSeparator + urlstring;
			} else {
				this.URLString = urlstring;
			}
		}
        
        if (this.noCache)
            this.setVar("rndval", new Date().getTime());
        
		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 (urlstring){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.reset();
	this.createAJAX();
}

function showDebugWindow(message) {
    top.newWinRef = window.open('', 'newWin');
    top.newWinRef.document.writeln(message);
}

// Clear option list
function clearOptionList(optionListObj) {
   for (i = optionListObj.length; i >= 0; i--) {
      optionListObj[i] = null;
   }
}

// Update city
function updateCity(countryId, altPath) {
    ajax.setVar("type", "cities");
    ajax.setVar("id", countryId);
	ajax.requestFile = "../handlers/ajax-handler.ashx";
	
	if (altPath==true)
	    ajax.requestFile = "handlers/ajax-handler.ashx";
	
	ajax.method = "GET";
	ajax.noCache = true;
	ajax.onLoading = resetCity;
	ajax.onCompletion = updateCityCompleted;
	//ajax.debug = true;
	ajax.runAJAX();
}

function resetCity() {
    var objOptList = document.getElementById("ctl00_contentMain_listCity");
    clearOptionList(objOptList);
    objOptList[objOptList.length] = new Option("Loading...", "");
}

function updateCityCompleted() {
    eval(ajax.response);
}

// Update area
function updateArea(cityId, altPath) {
    ajax.setVar("type", "areas");
    ajax.setVar("id", cityId);
	ajax.requestFile = "../handlers/ajax-handler.ashx";
	
    if (altPath==true)
	    ajax.requestFile = "handlers/ajax-handler.ashx";
	
	ajax.method = "GET";
	ajax.noCache = true;
	ajax.onLoading = resetArea;
	ajax.onCompletion = updateAreaCompleted;
	//ajax.debug = true;
	ajax.runAJAX();
}

function resetArea() {
    var objOptList = document.getElementById("ctl00_contentMain_listArea");
    clearOptionList(objOptList);
    objOptList[objOptList.length] = new Option("Loading...", "");
}

function updateAreaCompleted() {
    eval(ajax.response);
}

// Update parent property
function updateProperty(areaId, altPath) {
    ajax.setVar("type", "properties");
    ajax.setVar("id", areaId);
	ajax.requestFile = "../handlers/ajax-handler.ashx";
	
	if (altPath==true)
	    ajax.requestFile = "handlers/ajax-handler.ashx";	
	
	ajax.method = "GET";
	ajax.noCache = true;
	ajax.onLoading = resetProperty;
	ajax.onCompletion = updatePropertyCompleted;
	//ajax.debug = true;
	ajax.runAJAX();
}

function resetProperty() {
    var objOptList = document.getElementById("ctl00_contentMain_listParentProperty");
    clearOptionList(objOptList);
    objOptList[objOptList.length] = new Option("Loading...", "");
}

function updatePropertyCompleted() {
    eval(ajax.response);
}

function contentUpdate(page) {
    ajax.requestFile = "includes/help/" + page + ".html";
    ajax.method = "GET";
	ajax.noCache = false;
	ajax.onCompletion = contentUpdateDo;
	//ajax.debug = true;
	ajax.runAJAX();
}

function contentUpdateDo() {
    var contentHtmls = ajax.response;
    document.getElementById("help-content").innerHTML = contentHtmls;
}

var ajax = new Ajax();