function confirmLink(theLink, theSqlQuery) {
   var confirmMsg = 'Vlozit do kosiku:';
   if (confirmMsg == '' || typeof(window.opera) != 'undefined') {
      return true;
   }
   var is_confirmed = confirm(confirmMsg + ' \n' + theSqlQuery);
   if (is_confirmed) {
      theLink.href += '&is_js_confirmed=1';
   }
   return is_confirmed;
}

function nwin(url)
{
	window.open(url);
}

function zobraz(mod)
{
	var katalog = document.getElementById('katalog');
	var deti = katalog.getElementsByTagName('div');
	var zbozi = new Array();
	for(var i=0; i<deti.length; i++)
	{
		if(deti[i].className=='zbozi')
		{
			zbozi.push(deti[i]);
		}
	}	
	
	var vis = '';
	if(mod==1) // strucne
		vis = 'none';
	else
		vis = 'block';	
	
	var j, k = 0;	
	for(i=0; i<zbozi.length; i++)
	{
		deti = zbozi[i].getElementsByTagName('div');
		for(j=0; j<deti.length; j++)
		{
			// schovat cover
			if(deti[j].className=='cover')
			{
				deti[j].style.display = vis;
			}
			// schovat vse krome nazvu
			if(deti[j].className=='zbozi-text')
			{
				var ztd = deti[j].childNodes;
				for(k=0; k<ztd.length; k++)
				{					
					if(ztd[k].nodeName!='A')
					{
						try
						{
							ztd[k].style.display = vis;
						}
						catch(e) {}
					}
				}
			}
		}
	}
}

function ch(item) {
	var subs = document.getElementById('bel_sub').getElementsByTagName('input');
	var i,c;
	if(item.id)
	{
		c = document.getElementById('bel_sup').checked;
		for(i=0; i<subs.length; i++)
		{
			subs[i].checked = c;
		}
	}
	else
	{
		c = 1;
		for(i=0; i<subs.length; i++)
		{
			if(!subs[i].checked)
			{
				c = 0;
			}
		}
		document.getElementById('bel_sup').checked = c;
		
	}
}