var current_item = 'main';
	
function show_main()
{
	clear_menu();
	current_item = 'main';
	document.getElementById('main2').style.display = 'block';
	document.getElementById('footer').style.display = 'block';
	document.getElementById('content').style.display = 'none';
}


function show(item)
{
	clear_menu();
	current_item = item;
	document.getElementById(item + '2').style.display = 'block';
	document.getElementById('menu_' + item).src = 'images/menu/' + item + '2.jpg';
	document.getElementById('footer').style.display = 'none';
	load(item);
}

function clear_menu()
{
	document.getElementById('main').style.display = 'block';
	document.getElementById('main2').style.display = 'none';
	document.getElementById('news2').style.display = 'none';
	document.getElementById('offer2').style.display = 'none';
	document.getElementById('history2').style.display = 'none';
	document.getElementById('contact2').style.display = 'none';
}

function load(item)
{
	var content = document.getElementById('content');
	var myAjax = new Ajax.Request
	(
		'loading.php?item=' + item,
		{
			method: 'get',
			onSuccess:function(response)
			{
				content.innerHTML = response.responseText;
				content.style.display = 'block';
				var container = document.getElementById('container');
				switch(item)
				{
					case 'history':
						if (navigator.userAgent.indexOf("MSIE 6.0") != -1)
							container.style.height = '4000px';
						document.getElementById('background_image').style.left = 0;
						break;
					case 'offer':
						if (navigator.userAgent.indexOf("MSIE 6.0") != -1)
							container.style.height = '1400px';
						document.getElementById('background_image').style.left = 0;
						break;
					default:
						container.style.height = '';
						break;
				}
			}
			,onLoading:onLoading()
			//,onFailure:onFailure()
		}
	);
}

function send_offer()
{
	var title = document.getElementById('title').value;
	var message = document.getElementById('message').value.replace(/\n/g, '@@');
	var email = document.getElementById('email').value;
	var send_button = document.getElementById('send_button').value;
	var myAjax = new Ajax.Request
	(
		'send.php?title=' + title + '&message=' + message + '&email=' + email,
		{
			method: 'get',
			onSuccess:function(response)
			{
				var content = document.getElementById('sent_info');
				content.innerHTML = response.responseText;
				content.style.display = 'block';
				title.disabled = true;
				message.disabled = true;
				email.disabled = true;
				send_button.disabled = true;
			}
			,onLoading:onSending()
			//,onFailure:onSendFailure()
		}
	);
}

function onLoading()
{
	var content = document.getElementById('content');
	content.style.display = 'block';
	content.innerHTML = '<br /><br /><br /><br /><br /><br /><br /><br /><h1>Ładowanie danych<br /><br /> proszę czekać...</h1><br /><br /><br /><br />';
}

function onSending()
{
	var content = document.getElementById('sent_info');
	content.style.display = 'block';
	content.innerHTML = 'Wysyłanie wiadomości...';
}

function onSendFailure()
{
	var content = document.getElementById('sent_info');
	content.style.display = 'block';
	content.innerHTML = 'Wysłanie wiadomości nie powiodło się. Spróbuj później...';
}

function onFailure()
{
	var content = document.getElementById('content');
	content.style.display = 'block';
	content.innerHTML = '<br /><br /><br /><br /><br /><br /><br /><br /><h1>Problem z serwerem. <br />Proszę spróbować później<\/h1>';
}

function correct_layout()
{
	if (navigator.userAgent.indexOf("MSIE 6.0") != -1)
	{
		document.getElementById('background_image').style.top = -3;
		document.getElementById('background_image').style.left = 12;
	}
	if (navigator.userAgent.indexOf("MSIE 7.0") != -1)
	{
		document.getElementById('background_image').style.left = 12;
	}
}