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

function getSurovinaPopis(id)
{   
  if($('#desc-' + id).is(":hidden"))
  {
    $('#li-' + id).addClass('open');
    $('#desc-' + id).show();    
  }
  else
  {
    $('#li-' + id).removeClass('open');
    $('#desc-' + id).hide();
  }  
}

function bestsellerPrev()
{
	var enableToggler = true;
	
	var bestsellerItems = $$('#bestsellers div.item');
	
	for(var i = (bestsellerItems.length - 1); i >= 0; i--)
	{						
		if(enableToggler && bestsellerItems[i].visible())
		{
			if(bestsellerItems[i - 6])
			{
				bestsellerItems[i].hide();
				
				bestsellerItems[i - 6].show();
	
				enableToggler = false;
			}
		}				
	};
}

function bestsellerNext()
{
	var enableToggler = true;
	
	var bestsellerItems = $$('#bestsellers div.item');

	for(var i = 0; i < bestsellerItems.length; i++)
	{						
		if(enableToggler && bestsellerItems[i].visible())
		{
			if(bestsellerItems[i + 6])
			{
				bestsellerItems[i].hide();
				
				bestsellerItems[i + 6].show();
	
				enableToggler = false;
			}
		}				
	};
}

function detailPrev() //jQuery
{
	var enableToggler = true;

	for(var i = ($('.slide div.item').size() - 1); i >= 0; i--)  
	{
    if(enableToggler && $('#item-'+i).is(":visible"))
		{
			//if($('#item-'+(i-2)))
			if((i-2) > -1)
			{
				$('#item-'+i).hide();
				
				$('#item-'+(i-2)).show();
	
				enableToggler = false;
			}
		}	   
  }  	
}

function detailNext()
{
	var enableToggler = true;
	  				
	for(var i = 0; i < $('.slide div.item').size(); i++)
	{    
    if(enableToggler && $('#item-'+i).is(":visible"))
		{
			//if($('#item-'+(i+2)))
			if((i+2) < $('.slide div.item').size())
			{
				$('#item-'+i).hide();
				
				$('#item-'+(i+2)).show();
	
				enableToggler = false;
			}
		}	   
  }
}

function ChangeBasket(id,pocet)
{
  	var url = '/ajax/form-katalog-kosik.php?id=' + id + '&pocet=' + pocet;
  	  	
  	new Ajax.Request(url, 
  	{
  		method: 'get',
  		onSuccess: function(xmlhttp) {
  			
  			var xmldoc = xmlhttp.responseXML.documentElement;
  			
  			for(var i = 0; i < xmldoc.childNodes.length; i++) {
  
  				var node = xmldoc.childNodes.item(i);
  				
  				if (node.childNodes.length > 0) {
  					if($(node.nodeName)) {
  						$(node.nodeName).innerHTML = node.childNodes.item(0).data;
  					}
  				}
  			}  
  		}
  	});  
}

function ObjednavkaPopis(typ,id)
{
	if(typ == 0 & id == 0)
	{
    $('PopisDoruceni').innerHTML = '';	
    $('PopisPlatba').innerHTML = '';
	  return false;
  }
	if(typ == 1 & id == 0)
	{
    $('PopisDoruceni').innerHTML = '';	    
	  return false;
  }
	if(typ == 2 & id == 0)
	{
    $('PopisPlatba').innerHTML = '';	    
	  return false;
  }		
	
	else
	{
  	var url = '/ajax/box-objednavka-popis.php?typ=' + typ + '&id=' + id;
  	
  	new Ajax.Request(url, 
  	{
  		method: 'get',
  		onSuccess: function(xmlhttp) {
  			
  			var response = xmlhttp.responseText;
  			
  			if(typ == 1)
  			{
         $('PopisDoruceni').innerHTML = '';
  			 $('PopisDoruceni').innerHTML += response;
        }
        else
        {
         $('PopisPlatba').innerHTML = '';
  			 $('PopisPlatba').innerHTML += response;      
        }      
  		}
  	});
  }
}


function showBlock(id) 
{
  if(document.getElementById(id))
  {
    if(document.getElementById(id).style.display == "none")
    {
      document.getElementById(id).style.display = "block";
    }
    else
    {
      document.getElementById(id).style.display = "none";
    }
  }      
}

function clearVal(id) 
{
 document.getElementById(id).value = "";
}