var chatInitiated = false;

$(function()
{
	if(chatInitiated)
	{
		initiateChatBox();
		checkChat();
	}
});

function checkChat()
{
	$.post('./xhr/chat_server.php', {'type': 'check'}, function(data)
	{
		if(typeof(data) == 'string' && data.length > 0)
		{
			if(!chatInitiated)
			{
				initiateChatBox();
			}
			$('#chat_screen').html(data+'<div class="clear">&nbsp;</div>');
			var objDiv = document.getElementById("chat_screen");
			objDiv.scrollTop = objDiv.scrollHeight;
			setTimeout('checkChat()', 2500);
		}
		else if(chatInitiated)
		{
			$('#toolboxwrap').remove();
			chatInitiated = false;
		}
	});
}

function sendLine()
{
	var line = $('#newLine').val();
	if(line.length > 0)
	{
		$.post('./xhr/chat_server.php', {'type': 'newLine', 'newLine': line}, function(data, textStatus)
		{
			if(textStatus == 'success')
			{
				if(typeof(data.err) != undefined)
				{
					$('#chat_screen').append('<div class="chat_line err">'+data)+'</div>';
					var objDiv = document.getElementById("chat_screen");
					objDiv.scrollTop = objDiv.scrollHeight;
				}
			}
		});
		$('#newLine').val('');
	}
}

function makeSupportRequest(name, desc)
{
	if(name.length > 0 && desc.length > 0)
	{
		$.post('./xhr/chat_server.php', {'type': 'request', 'name': name, 'desc': desc}, function(data){if(data == ':::error:::'){alert('Erreur!')}});
		$('#supportRequest').remove();
		setTimeout('checkChat()', 3500);
	}
	else
		alert('Les champs sont pas là pour rien!');
}

function toggleChat()
{
	$('#chat_screen').toggle();
	$('#chat_writer').toggle();
}

function initiateChatBox()
{
	$('body').append('<div id="toolboxwrap"><div class="chat"><div class="chat_toolbar"><a href="javascript:toggleChat()" class="tool_button" id="chat_toggle">_</a><br/></div><div id="chat_screen"><img src="./img/loading.gif" alt="loading" /></div><div id="chat_writer"><textarea id="newLine"></textarea><input type="button" value="Send" onclick="sendLine()" /></div><br class="clear" /></div>');
	$('#newLine').keypress(function(e)
	{
		if(!e.shiftKey && e.which == 13)
		{
			sendLine();
			return false;
		}
	})
	chatInitiated = true;
}