var xHttp

function Napoveda(str)
{
  if (str.length==0)
  { 
     document.getElementById("napovedaDiv").innerHTML=""
     return
  }
  document.getElementById("napovedaDiv").style.display = 'block';
//   document.getElementById("napovedaSub").style.display = 'block'; 
  var url="./includes/vyhledavac.php" +"?q="+str
  xHttp = getXMLHttp()
  xHttp.onreadystatechange=ZmenaStavu 
  xHttp.open("GET",url,true)
  xHttp.send(null)
}


function ZmenaStavu() 
{ 
   if (xHttp.readyState==4 || xHttp.readyState=="complete")
     {document.getElementById("napovedaDiv").innerHTML=xHttp.responseText}
}


function getXMLHttp() 
{
    var xmlHttp= false;

    if (window.ActiveXObject) 
        {xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");}
     else if (window.XMLHttpRequest) 
        {xmlHttp = new XMLHttpRequest();}
  return xmlHttp
}

function selectOption(id) {
  document.getElementById("organizace").selectedIndex = id;
//   document.getElementById("napovedaSub").display = 'none';
//   document.getElementById("napovedaDiv").display = 'none';
//   document.getElementById("napovedaSub").visibility = 'hidden';
//   document.getElementById("napovedaDiv").visibility = 'hidden';
  document.getElementById("str_org").value = '';
//   document.getElementById("napovedaSub").style.display = 'none';
  document.getElementById("napovedaDiv").style.display = 'none';
  
}