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


function Browser() {
 var b=navigator.appName;
 if (b.indexOf('Netscape')!=-1) this.b="ns";
 else if ((b=="Opera") || (navigator.userAgent.indexOf("Opera")>0)) this.b = "opera";
 else if (b=="Microsoft Internet Explorer") this.b="ie";
 if (!b) alert('Unidentified browser.\nThis browser is not supported,');
 this.version=navigator.appVersion;
 this.v=parseInt(this.version);
 this.ns=(this.b=="ns" && this.v>=4);
 this.ns4=(this.b=="ns" && this.v==4);
 this.ns6=(this.b=="ns" && this.v==5);
 this.ie=(this.b=="ie" && this.v>=4);
 this.ie4=(this.version.indexOf('MSIE 4')>0);
 this.ie5=(this.version.indexOf('MSIE 5')>0);
 this.ie55=(this.version.indexOf('MSIE 5.5')>0);
 this.ie6=(this.version.indexOf('MSIE 6.0')>0);
 this.opera=(this.b=="opera");
 this.dom=(document.createElement && document.appendChild && document.getElementsByTagName)?true:false;
 this.def=(this.ie||this.dom); // most used browsers, for faster if loops
 var ua=navigator.userAgent.toLowerCase();
 if (ua.indexOf("win")>-1) this.platform="win32";
 else if (ua.indexOf("mac")>-1) this.platform="mac";
 else this.platform="other";
}


function sack(file)
{
	//alert(parent.parent.ihateit);
	this.donothin = false;
	this.AjaxFailedAlert = "Your browser does not support the enhanced functionality of this website, and therefore you will have an experience that differs from the intended one.\n";
	this.requestFile = file;
	this.method = "POST";
	this.URLString = "";
	this.encodeURIString = true;
	this.execute = false;

	this.onLoading = function() { };
	this.onLoaded = function() { };
	this.onInteractive = function() { };
	this.onCompletion = function() { };

	if( !document.getElementById( 'sackLoading' ) ) {
		
		//nu finde mal raus, ob es sich um den gottverdammten IE 6 handelt
		is=new Browser();
		
		//tu was ganz anderes, nämlich: GREYBOX! woohoo 

		var nlgif = false;
		if(parent.parent.no_loading_gif == true)
			nlgif = true; 		


//return;

			  var sackLoader                 = document.createElement( 'DIV' );
			  sackLoader.id                  = 'sackLoading';
			  sackLoader.style.zIndex        = 10000000000;
			  sackLoader.style.margin          = '0px';
			  sackLoader.style.width           = '100px';
			  sackLoader.style.height          = '100px';
			  sackLoader.style.position        = 'absolute'; //fixed
			  sackLoader.style.top             = '50%';
			  sackLoader.style.left            = '50%';
			  sackLoader.style.marginTop       = '-50px';
			  sackLoader.style.marginLeft      = '-50px';
			  sackLoader.style.display         = 'block';
			  //sackLoader.style.backgroundColor = '#FFFFFF';
			  var sackImg       = document.createElement( 'IMG' );
			  sackImg.src   = BASEPATH+'img/loading.gif';
			  sackImg.width = "100";
			  sackImg.height = "100";
			  
			  sackLoader.appendChild( sackImg );
			  theBody = document.getElementsByTagName( 'BODY' )[0];
		
		    //theBody.appendChild( sackLoader );
  }
	
	this.setSIP = function(sip)
	{
		this.donothin = true;
	};
	
	this.createAJAX = function() {
		try {
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (err) {
				this.xmlhttp = null;
			}
		}
		if(!this.xmlhttp && typeof XMLHttpRequest != "undefined")
			this.xmlhttp = new XMLHttpRequest();
		if (!this.xmlhttp){
			this.failed = true; 
		}
	};
	
	this.setVar = function(name, value){
		if (this.URLString.length < 3){
			this.URLString = name + "=" + value;
		} else {
			this.URLString += "&" + name + "=" + value;
		}
	}
	
	this.encVar = function(name, value){
		var varString = encodeURIComponent(name) + "=" + encodeURIComponent(value);
	return varString;
	}
	
	this.encodeURLString = function(string){
		varArray = string.split('&');
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split('=');
			if (urlVars[0].indexOf('amp;') != -1){
				urlVars[0] = urlVars[0].substring(4);
			}
			varArray[i] = this.encVar(urlVars[0],urlVars[1]);
		}
	return varArray.join('&');
	}
	
	this.runResponse = function(){
		eval(this.response);
	}
	
	this.runAJAX = function(urlstring){
	  
	  this.showLoading( );
		
	  this.responseStatus = new Array(2);
		if(this.failed && this.AjaxFailedAlert){ 
			alert(this.AjaxFailedAlert); 
		} else {
			if (urlstring){ 
				if (this.URLString.length){
					this.URLString = this.URLString + "&" + urlstring; 
				} else {
					this.URLString = urlstring; 
				}
			}
			if (this.encodeURIString){
				var timeval = new Date().getTime(); 
				this.URLString = this.encodeURLString(this.URLString);
				this.setVar("rndval", timeval);
			}
			if (this.element) { this.elementObj = document.getElementById(this.element); }
			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					var totalurlstring = this.requestFile + "?" + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
					alert( totalurlstring );
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
				}
				if (this.method == "POST"){
  					try {
						this.xmlhttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded')  
					} catch (e) {}
				}

				this.xmlhttp.send(this.URLString);
				this.xmlhttp.onreadystatechange = function() {
					switch (self.xmlhttp.readyState){
						case 1:
							self.onLoading();
						break;
						case 2:
							self.onLoaded();
							self.hideLoading( );
						break;
						case 3:
							self.onInteractive();
						break;
						case 4:
						  //alert( self.xmlhttp.statusText );
							self.response = self.xmlhttp.responseText;
							self.responseXML = self.xmlhttp.responseXML;
							self.responseStatus[0] = self.xmlhttp.status;
							self.responseStatus[1] = self.xmlhttp.statusText;
							self.onCompletion();
							if(self.execute){ self.runResponse(); }
							if (self.elementObj) {
								var 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;
								}
							}
							self.URLString = "";
						break;
					}
				};
			}
		}
	};
	
	this.showLoading = function( ) {
		//nlgif == true sagt mir, dass ich bereits in einer greybox drin bin. d.h. ich kann nicht NOCH eine öffnen!
		//greybox_visible == true sagt mir, dass bereits eine loading greybox offen ist und ich will nicht noch eine öffnen (fataal)
		var nlgif = false;
		if(parent.parent.no_loading_gif == true)
			nlgif = true; 
		
		if(document.getElementById("sackLoading"))	
		  document.getElementById("sackLoading").style.display = "block";
	};
	
	this.hideLoading = function( ) {

		

		var nlgif = false;
		if(parent.parent.no_loading_gif == true)
			nlgif = true; 



					if(document.getElementById("sackLoading"))
						document.getElementById("sackLoading").style.display = "none";
	};
	
	
this.createAJAX();
}