function posun(j){
  
    posun_index = posun_index+j;
    
      for(i=0;i<pocet_nahledu_dole;i++){
        k = posun_index+i;
        if(document.getElementById('obr'+i)){
          document.getElementById('obr'+i).src = obr[k];
          document.getElementById('obr'+i).alt = nazev[k];
          document.getElementById('obr'+i).title = nazev[k];          
        }
      }    
      
    if(!obr[posun_index-1]){
      document.getElementById('sipka_vlevo').style.visibility='hidden';
      document.getElementById('a_sipka_vlevo').style.visibility='hidden';
    } else document.getElementById('sipka_vlevo').style.visibility='visible';

    if(!obr[posun_index+pocet_nahledu_dole]){
      document.getElementById('sipka_vpravo').style.visibility='hidden';
      document.getElementById('a_sipka_vpravo').style.visibility='hidden';      
    } else document.getElementById('sipka_vpravo').style.visibility='visible';   
  }
  
  function nastav(i){
    i = posun_index+i;
    document.getElementById('foto_kontejner').src = obr_big[i];
    document.getElementById('foto_kontejner').title = nazev[i];
    document.getElementById('foto_kontejner').alt = nazev[i];
    document.getElementById('foto_kontejner_nazev').innerHTML = nazev[i];    
  }

  function ukaz(sw){
    if(sw==true) document.getElementById('cele_body').style.visibility='visible';
    else  document.getElementById('cele_body').style.visibility='hidden';
  }

  function ukaz2(sw,nadpis,text){
    if(sw==true){
      document.getElementById('text_nadpis').innerHTML=nadpis;
      document.getElementById('text_obsah').innerHTML=text;
      document.getElementById('cele_body2').style.visibility='visible';
    } else document.getElementById('cele_body2').style.visibility='hidden';
  }
  
  function zavri(){
    document.getElementById('cele_body2').style.visibility='hidden';
  }

var xmlHttpReq;
if(typeof XMLHttpRequest != 'undefined') 
{
  try 
  {
    xmlHttpReq = new XMLHttpRequest();
  } 
  catch(e) 
  {
	  try {
	    xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
	  } catch (e) {
	  try {
	    xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
	  } catch (E) {
	    xmlHttpReq = false;
	  }
	 }
  }
}
else
{
  try {
	  xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
	try {
	  xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
	  xmlHttpReq = false;
	}
  }
}
function zavru()
{
  document.getElementById('nove_okno').style.visibility='hidden';
}


function reloadNewTuts(param)
{
  var data = sendRequest("POST", liveAdminAbsoluteUrl+"ajax.php", "sender=sendRequest&type=new_tuts&"+param); 
  document.getElementById('my_content').innerHTML = data;
  //sendRequest("POST", liveAdminAbsoluteUrl+"ajax.php?idc=123", "fce=asdf");
}

function sendRequest(getOrPost, page, params)
{
  var strResult;
  if(getOrPost.toUpperCase() == "POST")
  {
    xmlHttpReq.open("POST", page, false);
    xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xmlHttpReq.send(params);
  }
  else
  {
    xmlHttpReq.open("GET", page + "?" + params, false);
    xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xmlHttpReq.send(null);
  }
  strResult = xmlHttpReq.responseText;
  return strResult;
}