/* $Id: menu.js,v 1.5 2003/04/09 16:47:48 asd Exp $ */
var vmenuId = null;
var intHide = null;
function menuv(f) {
    if (null==vmenuId) return;
    var ets = document.getElementById(vmenuId);
    if (typeof(ets) != 'undefined') {
        if (ets.style.display != f) {
            ets.style.display = f;
        }
        if (f == '') {
         if (document.getElementsByTagName('object').length > 0) if(document.getElementById('banner')) document.getElementById('banner').style.visibility = 'hidden';
        } else {
         if (document.getElementsByTagName('object').length > 0) if(document.getElementById('banner')) document.getElementById('banner').style.visibility = 'visible';
        }
    }
}
function menuo(mid,f) {
    if (f) { //show
        intHide = window.clearTimeout(intHide);
        if (mid != vmenuId) {
            menuv('none');
            vmenuId = mid;
            menuv('');
        } else {
            menuv('');
        }
        ShowHideSelect('hidden');
    } else {
        intHide = window.clearTimeout(intHide);
        intHide = window.setTimeout('menuv(\'none\')', 500);
        vmenuId = mid;
        ShowHideSelect('visible');
    }
}

//skryje a zobrazi SELECT
function ShowHideSelect(vis){
	sel = document.getElementsByTagName('select');
	for(i = 0; i < sel.length; i++){
    sel[i].style.visibility = vis;
  }
}