var RSSRequestObject = false; // XMLHttpRequest Object
var Backend = 'http://www.lacasaenelaire.it/bahia/eventrss.php'; // Backend url
window.setInterval("update_timer()", 1200000); // update the data every 20 mins


if (window.XMLHttpRequest) // try to create XMLHttpRequest
	RSSRequestObject = new XMLHttpRequest();

if (window.ActiveXObject)	// if ActiveXObject use the Microsoft.XMLHTTP
	RSSRequestObject = new ActiveXObject("Microsoft.XMLHTTP");


/*
* onreadystatechange function
*/
function ReqChange() {

	// If data received correctly
	if (RSSRequestObject.readyState==4) {
	
		// if data is valid
		if (RSSRequestObject.responseText.indexOf('invalid') == -1) 
		{ 	
			// Parsing Feeds
			var node = RSSRequestObject.responseXML.documentElement; 
			
			// Get the calendar title
			var title = node.getElementsByTagName('title').item(0).firstChild.data;
			
			//content = '<div class="channeltitle">'+title+'</div>';
			content = '';
		
			// Browse events
			var items = node.getElementsByTagName('entry');
			if (items.length == 0) {
				content += '<ul><li><div class=error>No events</div></li></ul>';
			} else {
				content += '';
				for (var n=items.length-1; n >= 0; n--)
				{
					var itemTitle = items[n].getElementsByTagName('title').item(0).firstChild.data;
					var Summary = items[n].getElementsByTagName('summary').item(0).firstChild.data;

					var currentItemLinks = items[n].getElementsByTagName("link");
					for(var currentItemLinkCount = 0; currentItemLinkCount < currentItemLinks.length; currentItemLinkCount++) {
							if (currentItemLinks[currentItemLinkCount].getAttribute("rel") == "related") {
									currentItemRelated = currentItemLinks[currentItemLinkCount].getAttribute("href");
								} else if (currentItemLinks[currentItemLinkCount].getAttribute("rel") == "enclosure") {
									currentItemImage = currentItemLinks[currentItemLinkCount].getAttribute("href");
								}
							}




					try 
					{ 
						var itemPubDate = '<div id="event_item" style="border-bottom:1px solid white;padding:20px 0 30px 0;text-transform:uppercase;"><div style="float:right">'+items[n].getElementsByTagName('summary').item(0).firstChild.data.substring(12,19)+'</div>';
					} 
					catch (e) 
					{ 
						var itemPubDate = '';
					}
					
				
					content += ''+itemPubDate+'<div style="width:250px;"><a href='+currentItemRelated+' target="_blank" style="color:white; text-decoration:none">'+itemTitle+'</a></div></div>';
				}
				
	
				content += '';
			}
			// Display the result
			document.getElementById("ajaxreader").innerHTML = content;

			// Tell the reader the everything is done
			document.getElementById("status").innerHTML = "Done.";
			
		}
		else {
			// Tell the reader that there was error requesting data
			document.getElementById("status").innerHTML = "<div class=error>Error requesting data.<div>";
		}
		
		HideShow('status');
	}
	
}

/*
* Main AJAX RSS reader request
*/
function RSSRequest() {

	// change the status to requesting data
	HideShow('status');
	document.getElementById("status").innerHTML = "Requesting data to FaceBook...";
	
	// Prepare the request
	RSSRequestObject.open("GET", Backend , true);
	// Set the onreadystatechange function
	RSSRequestObject.onreadystatechange = ReqChange;
	// Send
	RSSRequestObject.send(null); 
}

/*
* Timer
*/
function update_timer() {
	RSSRequest();
}


function HideShow(id){
	var el = GetObject(id);
	if(el.style.display=="none")
	el.style.display='';
	else
	el.style.display='none';
}

function GetObject(id){
	var el = document.getElementById(id);
	return(el);
}