/*http://www.hunlock.com/blogs/Mastering_JSON_(_JavaScript_Object_Notation_)*/
function ajaxObject(url, callbackFunction) {
	var that=this;
	this.updating = false;
	this.abort = function() {
		if (that.updating) {
			that.updating=false;
			that.AJAX.abort();
			that.AJAX=null;
		}
	}
	this.update = function(passData,postMethod) {
		if (that.updating) { return false; }
		that.AJAX = null;
		if (window.XMLHttpRequest) {
			that.AJAX=new XMLHttpRequest();
		} else {
			that.AJAX=new ActiveXObject("Microsoft.XMLHTTP");
		}
		if (that.AJAX==null) {
			return false;
		}else {
			that.AJAX.onreadystatechange = function() {
				if (that.AJAX.readyState==4) {
					that.updating=false;
					that.callback(that.AJAX.responseText,that.AJAX.status,that.AJAX.responseXML);
					that.AJAX=null;
				}
			}
			that.updating = new Date();
			if (/post/i.test(postMethod)) {
				var uri=urlCall+'?'+that.updating.getTime();
				that.AJAX.open("POST", uri, true);
				that.AJAX.setRequestHeader("Content-type", "application/x-www-form-urlencoded;charset=UTF-8");
				that.AJAX.setRequestHeader("Content-Length", passData.length);
				that.AJAX.send(passData);
			}else {
				var uri=urlCall+'?'+passData+'&timestamp='+(that.updating.getTime());
				that.AJAX.open("GET", uri, true);
				that.AJAX.send(null);
			}
			return true;
		}
	}
	var urlCall = url;
	this.callback = callbackFunction || function () { };
}
function loadXML(str) {
	var doc = null;
	try {
	 if (window.ActiveXObject) {
	  doc=new ActiveXObject("Microsoft.XMLDOM");
	  doc.async="false";
	  doc.loadXML(text);
	  }
	 else  {
	  var parser=new DOMParser();
	  doc=parser.parseFromString(text,"text/xml");
	  }
	}catch(e) {doc = null;}
	 return doc;
}