function get_menu_leve (url, parametry) {
	
	//document.getElementById('best-sell').innerHTML = '<div id="preloader">Loading, please wait.</div>';
	
	var http_zadost = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari, Opera, Konqueror...
		http_zadost = new XMLHttpRequest();
		if (http_zadost.overrideMimeType) {
		    http_zadost.overrideMimeType('text/xml');
		}
		    } else if (window.ActiveXObject) { // Internet Explorer
		        try {
		           http_zadost = new ActiveXObject("Msxml2.XMLHTTP");
		        } catch (e) {
		            try {
		                http_zadost = new ActiveXObject("Microsoft.XMLHTTP");
		           } catch (e) {}
		        }
		    }
		    if (!http_zadost) {
		        /*alert('Error with XMLHTTP instance. Please upgrade your browser. Error code: #02');*/
		        return false;
		    }
		    http_zadost.open('GET', url, true);
	        http_zadost.onreadystatechange = function() {
	      	if (http_zadost.readyState == 4) {
			        		
	        if (http_zadost.status == 200) {
	         	//document.getElementById('pd-menu-leve').innerHTML = http_zadost.responseText;
	         	if (parametry == undefined) parametry='pd-menu-leve';
	         	document.getElementById(parametry).innerHTML = http_zadost.responseText;
	        } else {
	           	/*Problem se zadosti*/
	            /*alert('Error with XMLHTTP instance. Please upgrade your browser. Error code: #01');*/
	        }
	    }
	}
	http_zadost.send(null);
	
	return false;
}

function zmenit_stav_menu(KATEGORIE,LEVEL,lang)
			    {
					var lg = '.';
					switch (lang) {
						case 'en':
						case 'de':
						case 'ru':
							lg = './'+lang;
							break;
						default:
							lg = '.';
							break;
					}

			    	if (LEVEL == undefined) LEVEL=0;
			    	if (basename(document.getElementById('navigace-ajax-img-'+KATEGORIE).src) == "strom_minus.gif"){
			    		document.getElementById('navigace_ajax_'+KATEGORIE).innerHTML = '';
			    		document.getElementById('navigace_ajax_'+KATEGORIE).style.display = 'none';
			    		//alert(document.getElementById('navigace_ajax_'+KATEGORIE).outerHTML);
			    		document.getElementById('navigace-ajax-img-'+KATEGORIE).src = './images/strom_plus.gif';
			    	} else {
			    		document.getElementById('navigace-ajax-img-'+KATEGORIE).src = './images/strom_minus.gif';
			    		//document.getElementById('navigace_ajax_'+KATEGORIE).innerHTML = '<span style="color: red;">&nbsp;&nbsp;&nbsp;Loading ....</span><br/><br/>';
			    		get_menu_leve(lg+'/ajax-menu-leve.php?kategorie='+KATEGORIE+'&level='+LEVEL, 'navigace_ajax_'+KATEGORIE);
			    		document.getElementById('navigace_ajax_'+KATEGORIE).style.display = 'block';
			    	}
			    	
			    	/*document.getElementById('navigace-ajax-'+KATEGORIE).innerHTML = '';
			    	document.getElementById('navigace-ajax-img-'+KATEGORIE).src = './images/strom_plus.gif';*/
			    	
			    	return false;
			    }
			    
function basename (path, suffix) {
    var b = path.replace(/^.*[\/\\]/g, '');
        if (typeof(suffix) == 'string' && b.substr(b.length-suffix.length) == suffix) {
        b = b.substr(0, b.length-suffix.length);
    }
    
 return b;}