// JavaScript Document
function ChangeDropdowns(value){
 if(value=="Slovensko"){
  document.getElementById('mtns').style.display='';
  document.getElementById('frgn').style.display='none';
 }
 else if(value=="zahraničie"){
  document.getElementById('mtns').style.display='none';
  document.getElementById('frgn').style.display='';
 }
 else {
  document.getElementById('mtns').style.display='none';
  document.getElementById('frgn').style.display='none';
 }
}

function ChangeHeadline(){
 var a = document.filter.rokakcie.selectedIndex;
 var b = document.filter.country.selectedIndex;
 var c = document.filter.mountains.selectedIndex;
 var d = document.filter.foreign.selectedIndex;

 var filA = document.filter.rokakcie.options[a].value + " :: ";
 var filB = document.filter.country.options[b].value;

 if (b==1) {
  var filC = " :: " + document.filter.mountains.options[c].value;
 }
 else if (b==2) {
  var filC = " :: " + document.filter.foreign.options[d].value;
 }
 else {
  var filC = "";
 }

 document.getElementById('fil_head').innerHTML = filA + filB + filC;
}

function ResetLowerDropDown() {
document.getElementById('mountains').value="Všetky oblasti";
document.getElementById('foreign').value="Všetky krajiny";
}

function iframe_height() {
the_height = document.getElementById('akcia-frame').contentWindow.document.body.scrollHeight;
if (the_height<600) {
document.getElementById('akcia-frame').height = 600;
}
else {
document.getElementById('akcia-frame').height = the_height;
}
}