function ShowKat(obj)
	{
		var el = document.getElementById(obj);
		el.style.display = '';
	}

	function HideKat(obj)
	{
		var el = document.getElementById(obj);
		el.style.display = 'none';
	}

	function GotoPage(link)
	{
		var pagenum = document.getElementById('strona').value;
		link = link.replace('.html', '/' + pagenum + '.html')
		parent.location.href=link;
	}
	function Show_Stuff(obj,obj2)
	{
		var el = document.getElementById(obj);
		if (el.style.display == "none")
			show_meta(obj,obj2);
		else
			hide_meta(obj,obj2);
	}

	function show_meta(obj,obj2) {
		var el = document.getElementById(obj);
		var el2 = document.getElementById(obj2);
		el.style.display = '';
		el2.src = '/web/images/li_minus.jpg';
	}

	function hide_meta(obj,obj2) {
		var el = document.getElementById(obj);
		var el2 = document.getElementById(obj2);
		el.style.display = 'none';
		el2.src = '/web/images/li_plus.jpg';
	}
	
	function change_values() {
		if (document.getElementById('file_type').value == 4) 
			document.getElementById('szer_dl').style.display = '';
		else document.getElementById('szer_dl').style.display = 'none';
	}

	function Sure(link) {
		if (confirm("Are you sure?"))
			parent.location.href=link;
		return "";
	}
	
	function bookmark(url,title){
	  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
	  window.external.AddFavorite(url,title);
	  } else if (navigator.appName == "Netscape") {
	    window.sidebar.addPanel(title,url,"");
	  } else {
	    alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark");
	  }
	}