$(document).ready(function(){
	getmessages();
	$('#send-text-button').click(function(event){
		sendtext();
	});
});

$(window).keydown(function(event){
	var kC = event.keyCode;
	if (kC == 13) { /* when pressing the 'enter' key */
		sendtext();
	}
});

function getmessages() {
	getmess();
	setTimeout("getmessages()", 5000);
}

function getmess() {
	$.ajax({
		type: 'post',
		url: 'chat-msgs.php',
		data: { iCHAT: true },
		error: function (data) {
			alert("Error occoured while trying to get messages: "+data);
		},
		success: function (data) {
			$('#chat-messages').html(data);
		}
	});
}

function sendtext() {
	var x = $('#send-text').val();
	var y = $('#send-user').val();
	var error = false;
	
	if (y.length < 3) { alert('Username must be at least 3 signs.'); error = true; }
	if (y.length > 30) { alert('Username must be less than 30 signs.'); error = true; }
	if (x.length > 300) { alert('The message can\'t contain more then 300 signs.'); error = true; }
	if (y == '') { alert('Please enter a username before posting.'); error = true; }
	if (x == '') { error = true; }
	if (!error) {
		$.ajax({
			type: 'post',
			url: 'chat.php',
			data: { message: x, user: y },
			beforeSend: function () {
				$('#send-loading').html('Loading...');
				$('#send-loading').show();
			},
			error: function (data) {
				alert('Error occoured: '+data);
				$('#send-loading').html('Error occoured.');
			},
			success: function (data) {
				$('#send-loading').hide();
				$('#send-text').val('');
				getmess();
			}
		});
	}
}