function AjaxRequest(){
	var Ajax = false;
	if(window.XMLHttpRequest){
		Ajax = new XMLHttpRequest();			
	}else if(window.ActiveXObject){
		try{
			Ajax = new ActiveXObject("Msxml2.XMLHTTP");				
		}catch(e){
			try{
				Ajax = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e) { }
		}
	}
	return Ajax;
}

function add_favourite_property(property_id, property_type){
	ajax_request = new AjaxRequest();		
	if(!ajax_request){
		alert("Error inicializing Ajax!");
		return;
	}
	ajax_request.onreadystatechange = refresh_star_add;
	ajax_request.open('GET', 'http://www.foreclosure1.com/insert_favourite_property.php?property_id='+property_id+'&property_type='+property_type, true);
	ajax_request.send(null);
}

function refresh_star_add(){	
	if(ajax_request.readyState == 4){		
		if(ajax_request.status == 200 ){
			var response = ajax_request.responseText.split(" ");
			var star = document.getElementById("star_"+response[0]);
			var star2 = document.getElementById("star2_"+response[0]);
			star.innerHTML = '<a href="javascript:void(0);" onclick="javascript:remove_favourite_property(\''+response[0]+'\', \''+response[1]+'\')" title="Remove from Favorites"><img src="http://www.foreclosure1.com/images/staron.gif" alt="Remove from Favorites" border="0" /></a>';
			star2.innerHTML = '<a href="javascript:void(0);" onclick="javascript:remove_favourite_property(\''+response[0]+'\', \''+response[1]+'\')" title="Remove from Favorites"><img src="http://www.foreclosure1.com/images/slide_bt_fave_rm.jpg" alt="Remove from Favorites" border="0" /></a>';
		}
		else{
			alert("Server error!");
		}
	}
}

function remove_favourite_property(property_id, property_type){
	confirmation = confirm("Are you sure you want to remove this property from your favorites?");
	if(!confirmation)
		return;
	
	ajax_request = new AjaxRequest();		
	if(!ajax_request){
		alert("Error inicializing Ajax!");
		return;
	}
	ajax_request.onreadystatechange = refresh_star_remove;
	ajax_request.open('GET', 'http://www.foreclosure1.com/remove_favourite_property.php?property_id='+property_id+'&property_type='+property_type, true);
	ajax_request.send(null);
}

function refresh_star_remove(){
	if(ajax_request.readyState == 4){
		if(ajax_request.status == 200 ){
			var response = ajax_request.responseText.split(" ");
			var star = document.getElementById("star_"+response[0]);
			var star2 = document.getElementById("star2_"+response[0]);
			star.innerHTML = '<a href="javascript:void(0);" onclick="javascript:add_favourite_property(\''+response[0]+'\', \''+response[1]+'\')" title="Add to Favorites"><img src="http://www.foreclosure1.com/images/staroff.gif" alt="Add to Favorites" border="0" /></a>';
			star2.innerHTML = '<a href="javascript:void(0);" onclick="javascript:add_favourite_property(\''+response[0]+'\', \''+response[1]+'\')" title="Add to Favorites"><img src="http://www.foreclosure1.com/images/slide_bt_fave_add.jpg" alt="Add to Favorites" border="0" /></a>';
		}
		else{
			alert("Server error!");
		}
	}
}