function MM_preloadImages() { //v3.0

  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();

    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)

    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}

}

function MM_swapImgRestore() { //v3.0

  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;

}

function MM_findObj(n, d) { //v4.01

  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {

    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}

  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];

  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);

  if(!x && d.getElementById) x=d.getElementById(n); return x;

}

function MM_swapImage() { //v3.0

  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)

   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}

}



function vynuluj() {

	var frm=MM_findObj("f");

	frm.reset();

}

function kontrola() {
	
// USED IN formular.php: <form id="f" action="letenka.php" method="post" onsubmit="return kontrola()">

	var obj=MM_findObj("odkud");

	if (obj.value=='' || obj.value=='undefined')

	{

		alert("Va rugam completati campul Plecare."); // please choose from where do you want to go (departure)

		return false;

	}

	obj=MM_findObj("kam");

	if (obj.value=='' || obj.value=='undefined')

	{

		alert("Va rugam completati campul Sosire."); // please choose where do you want to go (arrive)

		return false;

	}

// we don't use it, because we changed this inputs to a calendar

//	od=MM_findObj("odlet_den"); om=MM_findObj("odlet_mesic");

//	md=MM_findObj("min_den"); mm=MM_findObj("min_mesic");

//	if (om.value<mm.value || (om.value==mm.value && od.value<md.value))

//	{

//		alert("Datum odletu musí být minimálně za 3 dny ode dneška.");

//		return false;

//	}

//	pd=MM_findObj("prilet_den"); pm=MM_findObj("prilet_mesic");

//	jm=MM_findObj("letenka"); 

//	if ((pm.value<om.value || (pm.value==om.value && pd.value<=od.value)) && jm[0].checked)

//	{

//		alert("Datum příletu musí být po datu odletu.");

//		return false;

//	}

	return true;

}



function oznac(i) {

	document.styleSheets[i].disabled = false;

}

function odznac () {

	for (i=1; i<7; i++)

		document.styleSheets[i].disabled = true;

}

var jednosm=0;

function letenkazpat() {

	jednosm=0;



	obj=MM_findObj("arrive_row"); obj.style.visibility = "visible";
// we don't use it, because we changed this inputs to a calendar
//	obj=MM_findObj("arrive_date"); obj.style.visibility = "visible";
//	obj=MM_findObj("cal_img_arr"); obj.style.visibility = "visible";
//	obj=MM_findObj("label_arr"); obj.style.visibility = "visible";
}

function letenkajedn() {

	jednosm=1;
	obj=MM_findObj("arrive_row"); obj.style.visibility = "hidden";

// we don't use it, because we changed this inputs to a calendar
//	obj=MM_findObj("arrive_date"); obj.style.visibility = "hidden";
//	obj=MM_findObj("cal_img_arr"); obj.style.visibility = "hidden";
//	obj=MM_findObj("label_arr"); obj.style.visibility = "hidden";

}

function zobrazJmena() {

	o1=MM_findObj("pocet_osob"); o2=MM_findObj("pocet_deti"); o3=MM_findObj("pocet_batolat1"); o4=MM_findObj("pocet_batolat2");

	os = Number(o1.options[o1.selectedIndex].value) + Number(o2.options[o2.selectedIndex].value) + Number(o3.options[o3.selectedIndex].value) + Number(o4.options[o4.selectedIndex].value);

	for (i=1; i<25; i++) {

		obj=MM_findObj("cestujici"+i); if (obj.style) obj=obj.style;

		if (i>os) obj.display='none'; else obj.display='';

	}

}