/* Verifica se a página está no top frame */
if(self.parent.frames.length != 0) {
	self.parent.location = document.location;
	exit;
}

/* AJAX */
function ajaxObject(url, callbackFunction, some_id) {
	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;
				    if(that.AJAX.status == 200) that.callback(that.AJAX.responseText, some_id);
					else that.callback('', -1);
		  			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");
				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 () { };
}