function vyber_termin_plavby(){
  var id=document.getElementById("plavba").value;
  var file='sb_plavba.php?plavba=';
  var xmlhttp=false;
  
  try{
  	xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
  }
  catch (e){
  	try {
  		xmlhttp = new
  		ActiveXObject('Microsoft.XMLHTTP');
  	}
  	catch (E) {
  		xmlhttp = false;
  	}
  }
  
  if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
  	xmlhttp = new XMLHttpRequest();
  }
  
	xmlhttp.open('GET', file + id, true);
	xmlhttp.onreadystatechange=function(){
	if(xmlhttp.readyState==4){
		var content=xmlhttp.responseText;
		document.getElementById("misto_termin_plavby").innerHTML = content;
	 }
	}
  xmlhttp.send(null)
  muzou_deti();
  muzou_dospeli();
  return;
}
function muzou_deti(){
	  var id=document.getElementById("plavba").value;
	  var file='sb_cena.php?plavba='+id+'&muzoudeti=1';
	  var xmlhttp=false;
	  
	  try{
	  	xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
	  }
	  catch (e){
	  	try {
	  		xmlhttp = new
	  		ActiveXObject('Microsoft.XMLHTTP');
	  	}
	  	catch (E) {
	  		xmlhttp = false;
	  	}
	  }
	  
	  if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
	  	xmlhttp = new XMLHttpRequest();
	  }
	  
		xmlhttp.open('GET', file + id, true);
		xmlhttp.onreadystatechange=function(){
		if(xmlhttp.readyState==4){
			var content=xmlhttp.responseText;
			var el = document.getElementById("pocetdeti");
			if (content == 'NE') {
				el.className = 'input-text disabled';
				el.disabled = true;
				el.value = 0;
			}
			else {
				el.className = 'input-text';
				el.disabled = false;
				el.value = '';
			}
		 }
		}
	  xmlhttp.send(null)
	  return;
	}
function muzou_dospeli(){
	  var id=document.getElementById("plavba").value;
	  var file='sb_cena.php?plavba='+id+'&muzoudospeli=1';
	  var xmlhttp=false;
	  
	  try{
	  	xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
	  }
	  catch (e){
	  	try {
	  		xmlhttp = new
	  		ActiveXObject('Microsoft.XMLHTTP');
	  	}
	  	catch (E) {
	  		xmlhttp = false;
	  	}
	  }
	  
	  if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
	  	xmlhttp = new XMLHttpRequest();
	  }
	  
		xmlhttp.open('GET', file + id, true);
		xmlhttp.onreadystatechange=function(){
		if(xmlhttp.readyState==4){
			var content=xmlhttp.responseText;
			var el = document.getElementById("pocetosob");
			if (content == 'NE') {
				el.className = 'input-text disabled';
				el.disabled = true;
				el.value = 0;
			}
			else {
				el.className = 'input-text';
				el.disabled = false;
				el.value = '';
			}
		 }
		}
	  xmlhttp.send(null)
	  return;
	}
function spocticenu(plavba,osob,deti, platba){
	  var id=document.getElementById("plavba").value;
	  var file='/sb_cena.php?plavba='+plavba.value+'&osob='+osob.value+'&deti='+deti.value;
	  var xmlhttp=false;
	  
	  try{
	  	xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
	  }
	  catch (e){
	  	try {
	  		xmlhttp = new
	  		ActiveXObject('Microsoft.XMLHTTP');
	  	}
	  	catch (E) {
	  		xmlhttp = false;
	  	}
	  }
	  
	  if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
	  	xmlhttp = new XMLHttpRequest();
	  }
	  
		xmlhttp.open('GET', file, true);
		xmlhttp.onreadystatechange=function(){
		if(xmlhttp.readyState==4){
			if (platba[1].checked) 
			{ var content= xmlhttp.responseText; // plna cena
			}
			else
			{ var content= xmlhttp.responseText * (0.9); // 10% sleva
			}
			document.getElementById("cena").value = content;
		 }
		}
	  xmlhttp.send(null)
	  return;
	}