function shoutbox_refresh()
{
	new Ajax.Request('xmlhttp.php?action=shoutbox_refresh', {method: 'get', onComplete: function(request) { shoutbox_refresh_handle(request); }});
}

function shoutbox_refresh_handle(request)
{
	if(request.responseText.match(/<error>(.*)<\/error>/))
	{
		message = request.responseText.match(/<error>(.*)<\/error>/);
		if(!message[1])
		{
			message[1] = "An unknown error occurred.";
		}
		
		alert(message[1]);
	}
	else if(request.responseText)
	{
		shoutbox = document.getElementById('shoutbox_msgs');

		shoutbox.innerHTML = request.responseText; 
	}
}

function shoutbox_add()
{
	message = document.getElementById('shoutbox_ajax_message').value;
	document.getElementById('shoutbox_ajax_message').value = "";
	postData = "message="+encodeURIComponent(message).replace(/\+/g, "%2B");

	new Ajax.Request('xmlhttp.php?action=shoutbox_add', {method: 'post', postBody: postData, onComplete: function(request) { shoutbox_refresh_handle(request); }});
}

//Control browser for add shout on enter function
NS4 = (document.layers) ? true : false;

function shoutbox_add_enter(event)
{
	var code = 0;
	
	if(NS4)
	{
		code = event.which;
	}
	else
	{
		code = event.keyCode;
	}
	
	if(code==13)
	{
		shoutbox_add();
	}
}

shoutTimer = setInterval(shoutbox_refresh, 15000);