// zvyraznuje polozku menu, vola se pri kliku na menu
function active(click)
{
    if (typeof click == 'undefined' && window.event) click = window.event;
    if (typeof click.target == 'undefined' && click.srcElement) click.target = click.srcElement;

	var menu = document.getElementById('menu');
    var links = menu.getElementsByTagName('a');

    for (i = 0; i < links.length; i++)
        if (links[i] == click.target)
		    links[i].id = 'active';
		else
	    	links[i].id = '';
}

// zvyraznuje polozku menu, vola se pri naloadovani stranky v iframu
function active2(href)
{
	var menu = parent.document.getElementById('menu');
    var links = menu.getElementsByTagName('a');

    for (i = 0; i < links.length; i++) {
        if (links[i].href == href) {
		    links[i].id = 'active';
		} else {
	    	links[i].id = '';
		}
	}
}

// registruje ovladac udalosti klik na menu
if (typeof document.getElementsByTagName != 'undefined') {
 	var menu = document.getElementById('menu');
    var links = menu.getElementsByTagName('a');
    for (i = 0; i < links.length; i++)
	links[i].onclick = active;
}