function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

var server = 'http://www.martijnburg.nl/chat/functions.php';

var username = '';
var latest = '';

function autologin() {
	var naam = readCookie('naam');
	if(naam!=null){	
	username = naam;
	Element.hide('login');
	Element.show('chatelements');
	Element.show('messagebar');
	document.getElementById('naam').innerHTML = username;
	$('chatter').value = '';
	$('message').value = '';
	get_messages();
	checker = new PeriodicalExecuter(get_messages, 2);
	}

}

function login() {
	var naam = $F('user');
	if (naam == '')	{ 
		alert('Ja zonder naam gaan het natuurlijk niet werken he..');
		return false;
	}
	createCookie('naam',naam,7);
	username = naam;
	Element.hide('login');
	Element.show('chatelements');
	Element.show('messagebar');
	document.getElementById('naam').innerHTML = username;
	$('chatter').value = '';
	$('message').value = '';
	get_messages();
	checker = new PeriodicalExecuter(get_messages, 2);
}

function get_messages() {
	new Ajax.Request('functions.php?action=get&id=' + Math.random(), {
			method: 'get',
			contentType: 'text/html' ,
			onSuccess: function(transport) {

				$('chatter').update(transport.responseText);}
				})
}

function send_message() {
	var message = $F('message');
	if (message == '') {
		alert('Waar is het bericht?');
		return false;
	}

	new Ajax.Request('functions.php?action=add&user=' + username + '&message=' + message +'&id=' + Math.random(), {
			method: 'get',
			contentType: 'text/html'
})

	$('message').value = '';
}


function hitkey(event) {
	if (event.keyCode == 13) {
		send_message();
	}
}

Event.observe(window, 'load', function() {
	var message = $('message');
	Event.observe(message, 'keydown', hitkey, false);			
}, false);

function deletenaam() {
	var naam = readCookie('naam');
	alert(naam + ' is met succes gewist');
	createCookie('naam',"",-1);
	window.location.reload();
}
function deletebericht() {
	alert('Je berichten zijn gewist, binnen 5 seconden zijn ze uit de chat verdwenen.');
	new Ajax.Request('functions.php?action=delete&user=' + username, {
			method: 'get',
			contentType: 'text/html' 
			 })
}