/************************************************************************************************************
	Simple AJAX Code-Kit (SACK) v1.6.1 (www.twilightuniverse.com)
************************************************************************************************************/
function sack(file) {
	this.xmlhttp = null;

	this.resetData = function() {
		this.method = "POST";
  		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = false;
  		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){
				trueDebug('encVar '+urlVars[0]+' = '+urlVars[1]);
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				trueDebug('setVar '+urlVars[0]+' = '+urlVars[1]);
				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);
					trueDebug('AJAX::GET::'+totalurlstring);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					trueDebug('AJAX::POST::'+this.requestFile);
					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();
}

/************************************************************************************************************
	Dynamic HTML helpers
************************************************************************************************************/
var enableCache = true;
var jsCache = new Array();

var dynamicContent_ajaxObjects = new Array();

function ajax_showContent(divId,ajaxIndex,url)
{
	var targetObj = document.getElementById(divId);
	targetObj.innerHTML = dynamicContent_ajaxObjects[ajaxIndex].response;
	if(enableCache){
		jsCache[url] = 	dynamicContent_ajaxObjects[ajaxIndex].response;
	}
	dynamicContent_ajaxObjects[ajaxIndex] = false;

	ajax_parseJs(targetObj);


	ajax_Succeeded(divId,url);
}

function ajax_loadContent(divId,url)
{
	if(enableCache && jsCache[url]){
		document.getElementById(divId).innerHTML = jsCache[url];
		ajax_Succeeded(divId,url);
		return;
	}

	ajxFadeOut(divId);

	var ajaxIndex = dynamicContent_ajaxObjects.length;
	//document.getElementById(divId).innerHTML = '';
	dynamicContent_ajaxObjects[ajaxIndex] = new sack();
	dynamicContent_ajaxObjects[ajaxIndex].requestFile = url;	// Specifying which file to get
	dynamicContent_ajaxObjects[ajaxIndex].onCompletion = function(){ ajax_showContent(divId,ajaxIndex,url); };	// Specify function that will be executed after file has been found
	dynamicContent_ajaxObjects[ajaxIndex].onError = function (){ajax_Failed(divId,url);};
	dynamicContent_ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function

}

function ajxFadeOut(divId){
	fade(divId, 20, 99, 500);
}

function ajxFadeIn(divId){
	fade(divId, 99, 20, 500);
}

function ajax_Succeeded(divId,url){

	setTimeout("alignSidebar()",100);
    /*
    return true;
	if(obj = document.getElementById(divId)){
		if(divId=='sidebar' && obj.innerHTML == ''){
			obj.style.display = 'none';
			cobj.style.width='537px';
			cobj.style.marginRight='0px';
		} else {
			obj.style.display = 'block';
			cobj.style.width='362px';
			cobj.style.marginRight='200px';
		}
	}*/
}

function alignSidebar(){
    cobj = document.getElementById('content');
	sobj = document.getElementById('sidebar');
	if(sobj){
        if(sobj.innerHTML==''){
            //sobj.style.display = 'none';
            //cobj.style.width='537px';
            //cobj.style.marginRight='0px';
        } else {
            //sobj.style.display = 'block';
            //cobj.style.width='362px';
            //cobj.style.marginRight='200px';
        }
	}
}

function ajax_Failed(divId,url){
	urlp = url.split('/');

    var realparts = new Array();
	for(no=0;no<urlp.length;no++){
		if(urlp[no]){
			realparts[realparts.length] = urlp[no];
		}
	}

	if(realparts[0]=="sidebars"){
		ajax_loadContent(divId,'/sidebars/_default.php')
	} else if(realparts[0]=="items"){
		alert("no page found for: "+realparts[1]);
	} else{
		alert("invalid folder: "+realparts[0]+" ("+url+")");
	}


}

function ajax_parseJs(inputObj)
{
	var jsTags = inputObj.getElementsByTagName('SCRIPT');
	for(var no=0;no<jsTags.length;no++){
		eval(jsTags[no].innerHTML);
	}
}


function trueDebug(str){
	return true;
}