// Kontrola formulare

function check_send_form() {
  if(document.getElementById(101).value=="") {
	chyba="Zadejte prosím své jméno.";
	alert(chyba);
	return false;
	}
  if(document.getElementById(102).value=="") {
	chyba="Zadejte prosím svůj telefon.";
	alert(chyba);
	return false;
	}
  if(document.getElementById(103).value=="") {
	chyba="Zadejte prosím svůj email.";
	alert(chyba);
	return false;
	}
  else document.forms['kontakt'].submit();
}

// Vypocet hypoteky - CS

function vypocet_cs () {
var splatnost
var uver
var urok
var pocet_splatek
var mocnina
var anuita

uver = document.forms['formcs'].uver.value;

splatnost = document.forms['formcs'].delka_uveru.options[document.forms['formcs'].delka_uveru.options.selectedIndex].value

urok = 0.0339;

pocet_splatek = splatnost * 12;
mocnina = Math.pow(1+(urok/12),pocet_splatek);
anuita = (uver*(urok/12)*mocnina)/(mocnina-1)
anuita_round = Math.round(anuita);
document.forms['formcs'].mesicni_splatka.value = anuita_round;
}

// Zobrazeni fotografii

function openPhoto(anchor){
  window.open(anchor.href,'_blank','height=500,width=660,left=150,top=150,resizable=yes,scrollbars=no,status=no,toolbar=no');
}

// Prepinani panelu kontaktu
 
function switch_desk(show_id) {
   	document.getElementById('sw_tl').style.display = (show_id=='sw_t'?'block':'none');
   	document.getElementById('sw_xl').style.display = (show_id=='sw_x'?'block':'none');
   	document.getElementById('sw_t').onclick = (show_id=='sw_t'?null:(function () {switch_desk('sw_t')}));
   	document.getElementById('sw_x').onclick = (show_id=='sw_x'?null:(function () {switch_desk('sw_x')}));
	document.getElementById('sw_t').style.paddingBottom = (show_id=='sw_t'?'2px':"1px");
   	document.getElementById('sw_x').style.paddingBottom = (show_id=='sw_x'?'2px':"1px");
}