function ajaxObject(url, callbackFunction,asinc) {  
	var that=this;
	this.updating = false;
	var c='?';
	if (url.indexOf('?')>=0) { c='';}
	if (asinc==null) asinc=true;
	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+c+'&timestamp='+(that.updating.getTime());
				uri=uri.replace('?&','?');
				that.AJAX.open("POST", uri, asinc);
				that.AJAX.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		        that.AJAX.send(passData);
			}
			else {
				var uri=urlCall+c+passData+'&timestamp='+(that.updating.getTime());
				uri=uri.replace('?&','?'); 
				that.AJAX.open("GET", uri, asinc);
				that.AJAX.send(null);
			}
			return true;
		}
	}
	var urlCall = url;          
	this.callback = callbackFunction || function () { };
}