function UploadFileOnce()
{
	$('file-input').value = Form.Element.getValue('soubor');
}

function UploadFile(i)
{
	$('file-input'+i).value = Form.Element.getValue('soubor'+i);
}

function clearField(element, defaulVal)
{
	if(element.value == defaulVal) {
		element.value = '';
	}
}

function createBookmarkLink(title, url) 
{
	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel(title, url, "");
		return false;
	} 
	else if( window.external ) { // IE Favorite
		window.external.AddFavorite( url, title);
		return false;
	}
	else if(window.opera && window.print) { // Opera Hotlist
		return true; 
	}
}

function changeTab(elementId) 
{
	var tabs = $$('#nejctenejsi .article-list');

	for(var i = 0; i < tabs.length; i++) {

		tabs[i].hide();
	}
	
	$(elementId).show();
	
	return false;
}

function setView(coverId)
{
	var url = '/stranka/stranka-ajax-response.php?obalka_id=' + coverId;
  
  	new Ajax.Request(url, { method: 'get' });
	
	return false;
}

function setViewFoto(fotoId)
{
	var url = '/stranka/stranka-ajax-response.php?obrazek_id=' + fotoId;
  
  	new Ajax.Request(url, { method: 'get' });
	
	return false;
}

function showBlock(id)
{  
  $(id).show();
}
function hideBlock(id)
{  
  $(id).hide();
}

var RollStop = 0;
var OldWidth = 0;
var OldHeight = 0;

function RollImage(Direction)
{          
	var i = document.getElementById("foto-scroller-items").scrollLeft;
	var j;
	if(Direction == 1)
	{
		document.getElementById("foto-scroller-items").scrollLeft = -20 + i;
		j = document.getElementById("foto-scroller-items").scrollLeft;
		if(i > j && RollStop == 0) { setTimeout("RollImage(1)",50) }
	}
	else
	{
		document.getElementById("foto-scroller-items").scrollLeft = 20 + i;
		j = document.getElementById("foto-scroller-items").scrollLeft;
		if(i < j && RollStop == 0) { setTimeout("RollImage(2)",50) }
	}
}

function AddFavorite(linkObj,addUrl,addTitle)
{
  if (document.all && !window.opera)
  {
    window.external.AddFavorite(addUrl,addTitle);
    return false;
  }
  else if (window.opera && window.print)
  {
    linkObj.title = addTitle;
    return true;
  }
  else if ((typeof window.sidebar == 'object') && (typeof window.sidebar.addPanel == 'function'))
  {
    if (window.confirm('Přidat oblíbenou stránku jako nový panel?'))
    {
      window.sidebar.addPanel(addTitle,addUrl,'');
      return false;
    }
  }
  window.alert('Po potvrzení stiskněte CTRL-D,\nstránka bude přidána k vašim oblíbeným odkazům.');
  return false;
}

function showBigImg(thumb, src)
{  
  $('bigImgCont').innerHTML = '<a href="'+ src +'" rel="lightbox"><img src="'+ thumb +'" /></a>'; 
  return false;     
} 

function updateKurz(kurzId,terminId)
{
	var url = '/ajax/stranka-ajax-response.php?kurzId=' + kurzId + '&terminId=' + terminId;
  
	new Ajax.Request(url, 
	{
		method: 'get',
		onSuccess: function(xmlhttp) {
			var response = xmlhttp.responseText;
			 			 
			if($('terminDiv')) {
        $('terminDiv').innerHTML = '';
				$('terminDiv').innerHTML = response;			
			}
		}
	});
}