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_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_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 call1(){
	if (document.getElementById("ap1").checked == true) {
		document.getElementById("ap1").checked = false;
	} else document.getElementById("ap1").checked = true;
}
function call2(){
	if (document.getElementById("ap2").checked == true) {
		document.getElementById("ap2").checked = false;
	} else document.getElementById("ap2").checked = true;
}
function call3(){
	if (document.getElementById("ap3").checked == true) {
		document.getElementById("ap3").checked = false;
	} else document.getElementById("ap3").checked = true;
}
function callsauna(){
	if (document.getElementById("extra").checked == true) {
		document.getElementById("extra").checked = false;
	} else document.getElementById("extra").checked = true;
}


function MM_validateForm() { //v4.0
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
      if (val) { nm=val.name; if ((val=val.value)!="") {
        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
          if (p<1 || p==(val.length-1)) errors+='- '+nm+' musí být validní e-mailová adresa.\n';
        } else if (test!='R') { num = parseFloat(val);
          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
            min=test.substring(8,p); max=test.substring(p+1);
            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' je třeba vyplnit.\n'; }
    } if (errors) alert('Následující položky jsou nevyplněné:\n'+errors);
    document.MM_returnValue = (errors == '');
} }

function MM_changeProp(objId,x,theProp,theValue) { //v9.0
  var obj = null; with (document){ if (getElementById)
  obj = getElementById(objId); }
  if (obj){
    if (theValue == true || theValue == false)
      eval("obj.style."+theProp+"="+theValue);
    else eval("obj.style."+theProp+"='"+theValue+"'");
  }
}


function checkform2() { 
	if (document.getElementById("ap1").checked == false || document.getElementById("ap14").checked == false || document.getElementById("ap2").checked == false || document.getElementById("ap24").checked == false || document.getElementById("ap3").checked == false || document.getElementById("ap34").checked == false || document.getElementById("ap4").checked == false || document.getElementById("ap44").checked == false || document.getElementById("ap5").checked == false || document.getElementById("ap54").checked == false || document.getElementById("ap6").checked == false || document.getElementById("ap64").checked == false) {
		alert ('Musíte vybrat alespoň jeden apartmán !!!');
		return false;
	}
  	else return true;
}
function checkform3() { 
	if (document.getElementById("agree").checked == false) {
		alert ('Musíte souhlasit s podmínkami !!!');
		return false;
	}
  	else return true;
}

function checkform4() { 
	if (document.getElementById("platba").selected == false) {
		alert ('Zvolte způsob platby !!!');
		return false;
	}
  	else return true;
}

function apart(fld, fld2) { 
	//if (document.getElementById(fld).checked == true) { document.getElementById(fld2).checked = false; }
	var c = new Array();
	c = document.getElementsByTagName('input');
    	if (c[fld].type == 'checkbox') {
      		if (c[fld].checked == true) {
				c[fld2].checked = false;
			}	
  	}
	
}
function grayon(gron) { 
	document.getElementById(gron).style.filter= "gray";

}
function grayoff(groff) { 
	document.getElementById(groff).style.filter= "none";

}