var xmlHttp;

function showPrice()
{
	xmlHttp = GetXmlHttpObject();
	if (xmlHttp == null)
	{
		alert ("Tvůj internetový prohlížeč nepodporuje AJAX!");
		return;
	}
	
	var dateod = document.getElementById('date_od').value;	
	var dateod_new = dateod.replace(".", "-");
	dateod_new = dateod_new.replace(".", "-");
	
	var datedo = document.getElementById('date_do').value;
	var datedo_new = datedo.replace(".", "-");
	datedo_new = datedo_new.replace(".", "-");
	
	
	var id_pokoj = document.getElementById('id_pokoj').value;
	//alert(id_pokoj);
	
	document.getElementById('calculatorFrame').style.display = "none";
	
	var url="/ajax/getPrice.php";
	url=url+"?id-pokoj="+id_pokoj+"&dateod="+dateod_new+"&datedo="+datedo_new;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged()
{
	if (xmlHttp.readyState == 4)
	{
	  var option = xmlHttp.responseText;
	  var splited = option.split(";BREAK;");
    document.getElementById('countedPrice').style.display = "block";
    document.getElementById('pocet_noci').innerHTML = splited[1];  
    document.getElementById('vybrany_pokoj').innerHTML = splited[2];
    document.getElementById('cena_pobytu').innerHTML = splited[0]+" Kč";  
  }
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}