(function()
{

	var _cookies = new IMCookies;
	var _running = _cookies.get('IM_running');
	if ( !_running )
	{
		_cookies.set('IM_running', 'true', 5);

		function _config(pObj, pEvent, pHandler)
		{
			if ( typeof pObj == 'object' )
			{
				if ( pEvent.substring(0, 2) == 'on' )
					pEvent = pEvent.substring(2, pEvent.length);

				if ( pObj.addEventListener )
					pObj.addEventListener(pEvent, pHandler, false);
				else if ( pObj.attachEvent )
					pObj.attachEvent('on' + pEvent, pHandler);
			}
		}

		_config(window, 'onbeforeunload',
			function()
			{
				var _running = _cookies.get('IM_running');
				_cookies.clear('IM_running');
			}
		);

		if ( !(top.document.getElementById('instant_messenger_content')) )
		{
			var _im_content = top.document.createElement('div');
			_im_content.setAttribute('id', 'instant_messenger_content');
			_im_content = top.document.body.appendChild(_im_content);
		}

		var buffer = '';
		var _disconnected = false;

		var _conn = new IMConnector(path_im);
		var _xtools = new XTools(path_im);
		var _window = new Windows(_xtools, _im_content);
		var _ldap = new InstantMessengerLDAP(_conn, _xtools, _window);
		var _showhidden = new ShowHidden(1500);
		var _jabber = new Jabber(_conn, _xtools, _window, _ldap, _showhidden, _cookies);

		// XSL preload
		var _xsl_preload = [
			'window.xsl',
			'layer.xsl',
			'contacts.xsl',
			'chat.xsl',
			'options.xsl'
		];
		var _xsl_preload_legth = _xsl_preload.length;
		for ( var i = 0; i < _xsl_preload_legth; i++ )
			_xtools.load(_xsl_preload[i]);

		function _stream(data)
		{
			data = data.replace(/^ | $/, '');

			if ( !(data.length) )
				return false;

			if ( data.indexOf('disconnected') != -1 || data.indexOf('</stream:stream>') != -1 )
				_disconnect();
			else
			{
				if ( data.lastIndexOf('>') != data.length - 1)
					buffer += data + ' ';
				else
				{
					if ( buffer.length )
					{
						data = buffer + data;
						buffer = '';
					}

					// with xmlns, occurs problems during parse between
					// xml and xsl, and for that reason it was removed
					data = data.replace(/ xmlns='.*?'/g, '');
					data = '<handler>' + data + '</handler>';

					var _xml = _xtools.convert(data);

					if ( _xml )
					{
						var _node = _xml.documentElement.firstChild;

						while ( _node )
						{
							if ( _node.nodeType == 1 )
								_jabber.action(_node);
							//else
							//	alert('name : ' + _node.nodeName +
							//			"\n\nhas children:" + _node.hasChildNodes() +
							//			"\nvalue\n\n" + _node.nodeValue);

							_node = _node.nextSibling;
						}
					}
				}
			}
		}

		var _count_reconnect = 0;
		function _request()
		{
			if ( !_disconnected )
				return _conn.go(
					'$this.Ujabber.listen',
					{'stream':_stream, 'request':_wait},
					'classCostructor=read'
				);
			else
				setTimeout(_reconnect, (++_count_reconnect * 2000));
		}

		function _wait()
		{
			setTimeout(_request, 3000);
		}

		function _reconnect()
		{
			_disconnected = false;
			_request();
		}

		function _disconnect()
		{
			_disconnected = true;
			_conn.abort();
			_loading();
			var _status = top.document.getElementById('im_status');
			if ( _status )
				_status.style.backgroundImage = 'url(' + im_unavailable.src + ')';

			var _win_contacts = _window.get('contact_list');
			if ( _win_contacts )
				_win_contacts.icon(im_unavailable.src);
		}

		function _contacts()
		{
			if ( !_disconnected )
			{
				_conn.go('t.update');

				setTimeout(function()
				{
					var _contact_list = top.document.getElementById('im_contact_list');
					if ( !_contact_list )
						_contacts();
				}, 5000);
			}
		}

		function _loading()
		{
			var _win_contact = _window.get('contact_list');
			if ( !_win_contact )
			{
				_win_contact = _window.load('contact_list');
				_win_contact.hidden();
				_win_contact.title('.::Expresso Messenger::.');
				_win_contact.size(170, 350);
				_win_contact.position(30, 30, true);
				_win_contact.icon(im_unavailable.src);
				_win_contact.bc.style.display = 'none';
			}

			_win_contact.loading();
		}

		function _showContacts()
		{
			var _win = _window.get('contact_list');
			if ( _win )
				if ( _win.wm.style.display == 'none' )
					_win.wm.style.display = 'block';
				else
					_win.wm.style.display = 'none';
		}

		_loading();

		var local;
		if ( (local = top.document.getElementById('divStatusBar')) )
		{
			// tentando colocar os icones em local que não seja mexido.
			// VERIFICAR
			var _div = top.document.createElement('div');
			_div.appendChild(local.parentNode.removeChild(local.previousSibling));
			local.parentNode.insertBefore(_div, local);
			//_div.appendChild(local);

			//local = _div;

			local.style.paddingLeft = '30px';

			var _status = top.document.createElement('div');
				_status.setAttribute('id', 'im_status');
				_status.style.background = 'no-repeat';
				_status.style.backgroundImage = 'url(' + im_unavailable.src + ')';
				_status.style.float = 'left';
				_status.style.height = '15px';
				_status.style.left = '20px';
				_status.style.margin = '0 0 0 10px';
				_status.style.padding = '0px';
				_status.style.position = 'absolute';
				_status.style.width = '15px';

			local.insertBefore(_status, local.firstChild);

			_config(_status, 'onclick', _showContacts);

			var _menu;
				_menu = top.document.createElement('span');
				_menu.setAttribute('id','fast_menu_im');
				_menu.style.backgroundColor = 'b4cfe5';
				_menu.style.display = 'none';
				_menu.style.margin = '15px 0 0 -15px';
				_menu.style.position = 'absolute';
				_menu.style.zIndex = '99999';
			local.insertBefore(_menu, local.firstChild);

			var _menu_img = top.document.createElement('div');
				_menu_img.style.background = 'no-repeat';
				_menu_img.style.backgroundImage = 'url(' + im_fast_menu.src + ')';
				_menu_img.style.float = 'left';
				_menu_img.style.height = '10px';
				_menu_img.style.left = '23px';
				_menu_img.style.margin = '0px';
				_menu_img.style.padding = '0px';
				_menu_img.style.position = 'absolute';
				_menu_img.style.width = '10px';
			local.insertBefore(_menu_img, local.firstChild);

			_config(
				_menu_img,
				'onclick',
				function()
				{
					var _options = [
						'available',
						'away',
						'dnd',
						'unavailable'
					];

					var _style_text = 'cursor: pointer; padding:2px 4px 2px 20px; background: no-repeat ';

					var _xml = _xtools.xml('menu');
					var _option;
					var _item;
					var _action;
					var _style;

					for ( var i in _options )
					{
						_option = _xml.createElement('option');

						_item = _xml.createElement('item');
						_item.appendChild(_xml.createTextNode(imGetLang(_options[i])));

						_style = _xml.createElement('style');
						_style.appendChild(_xml.createTextNode(_style_text + 'url(' + eval('im_' + _options[i] + '.src') + ')'));

						_option.appendChild(_item);
						_option.appendChild(_style);

						_xml.documentElement.appendChild(_option);
					}

					_menu.innerHTML = _xtools.parse(_xml, 'options.xsl');
					_showhidden.action('onmouseover', 'onmouseout', _menu);

					_item = _menu.firstChild;

					for ( var i in _options )
					{
						_item.childNodes[i].setAttribute('presence', _options[i]);
						_config(
							_item.childNodes[i],
							'onclick',
							function(e)
							{
								var el = ( e.target ) ? e.target : e.srcElement;
								var _presence = el.getAttribute('presence');
								_jabber.setPresence(_presence);
							}
						);
					}
				}
			);
		}

		function Client()
		{
			_request();
			setTimeout(_contacts, 3000);
		}

		window.InstantMessengerClient = Client;
	}
}
)();