function urceni_vysky(br)
{
  if(window.innerHeight) 
  {
    if(br[0] == 'opera')
      document.getElementById("body").style.minHeight = (window.innerHeight-315) + "px";
    else
      document.getElementById("body").style.minHeight = (window.innerHeight-318) + "px";
  } 
  else if(document.documentElement.clientHeight)
  {
    document.getElementById("body").style.minHeight  = (document.documentElement.clientHeight-315) + "px";
  }
}

function Show() 
{
  if(document.getElementById('hidden_div').style.display = "none") 
  {
    document.getElementById('kliknete').style.display = "none";
    document.getElementById('hidden_div').style.display = "block";
  } 
  else 
  {
    document.getElementById('kliknete').style.display = "block";
    document.getElementById('hidden_div').style.display = "none";
  }
}