<!--
// výšky oken    
function setHeight(offset, minheight, menuoffset) {
  var vyska = window.document.getElementById('obsah').scrollHeight + offset;
  if (vyska >= minheight) {
    window.parent.document.getElementById('ifrm').style.height = window.document.getElementById('obsah').scrollHeight + offset + 'px';
    window.parent.document.getElementById('menu').style.height = window.document.getElementById('obsah').scrollHeight + offset + menuoffset + 'px';
  } else {
    window.parent.document.getElementById('ifrm').style.height = minheight + 'px';
    window.parent.document.getElementById('menu').style.height = minheight + menuoffset + 'px';
  }
}
function setHeightDetail(offset, minheight, menuoffset) {
  var vyska = window.document.getElementById('detail').scrollHeight + offset;
  if (vyska >= minheight) {
    window.parent.document.getElementById('ifrm').style.height = window.document.getElementById('detail').scrollHeight + offset + 'px';
    window.parent.document.getElementById('menu').style.height = window.document.getElementById('detail').scrollHeight + offset + menuoffset + 'px';
  } else {
    window.parent.document.getElementById('ifrm').style.height = minheight + 'px';
    window.parent.document.getElementById('menu').style.height = minheight + menuoffset + 'px';  
  }
}
function setHeightBox() {
  window.document.getElementById('menu').style.height = window.document.getElementById('nabidka').scrollHeight + 'px';
}
function showUp(h) {
if (window.document.getElementById('menu').scrollHeight > h)
  window.document.getElementById('idnahoru').innerHTML = '<div class="nahoru" title="jdi nahoru" onclick="location.hash = \'#top\'"><img src="pics/sipka_nahoru.gif" border="0" style="position: relative; top: 1px;" />&nbsp;&nbsp;<a>nahoru</a></div>';
}
//-->