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

function sack(file) {
	this.xmlhttp = null;

	this.resetData = function() {
	this.method = "POST";
 	this.queryStringSeparator = "?";
	this.argumentSeparator = "&";
	this.URLString = "";
	this.encodeURIString = true;
 	this.execute = false;
 	this.element = null;
	this.elementObj = null;
	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.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;
	}
	}

	// prevents caching of URLString
	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.runResponse = function() {
	eval(this.response);
	}

	this.runAJAX = function(urlstring) {
	if (this.failed) {
	this.onFail();
	} else {
	this.createURLString(urlstring);
	if (this.element) {
	this.elementObj = document.getElementById(this.element);
	}
	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[0] = self.xmlhttp.status;
	self.responseStatus[1] = self.xmlhttp.statusText;

	if (self.execute) {
	self.runResponse();
	}

	if (self.elementObj) {
	elemNodeName = self.elementObj.nodeName;
	elemNodeName.toLowerCase();
	if (elemNodeName == "input"
	|| elemNodeName == "select"
	|| elemNodeName == "option"
	|| elemNodeName == "textarea") {
	self.elementObj.value = self.response;
	} else {
	self.elementObj.innerHTML = self.response;
	}
	}
	if (self.responseStatus[0] == "200") {
	self.onCompletion();
	} else {
	self.onError();
	}

	self.URLString = "";
	break;
	}
	};

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

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

function ahah(url, target)
{
document.getElementById(target).innerHTML = "<p class=\"AjaxLoading\">&nbsp;</p>";

if (window.XMLHttpRequest)
{
req = new XMLHttpRequest();
}

else if (window.ActiveXObject)
{
req = new ActiveXObject("Microsoft.XMLHTTP");
}

if (req != undefined)
{
req.onreadystatechange = function() {return ahahDone(url, target);};
req.open("GET", url, true);
req.send("");
}

}

function ahahDone(url, target)
{
if (req.readyState == 4)
{

if (req.status == 200)
{
document.getElementById(target).innerHTML = req.responseText;
}

else
{
document.getElementById(target).innerHTML=" AHAH Error:\n"+ req.status + "\n" +req.statusText;
}

}

}

function load(name, div)
{
ahah(name,div);
}


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

function ChangeProperty(PropertyID)
{
URL	= "ajax/properties.php?PropertyID=" + PropertyID;
Response	= load(URL,"PropertyPromo");
rolloverInit();
}

var ajax = new sack();