// ------------------------------------------ fce pro vysouvaci menu
var PocetMenu = 7;
function Show(CisMenu)    {
  var menu = document.getElementById('submenu'+CisMenu);	
  menu.style.visibility="visible";
}

function Hide() {
  var menu, i;
  for(i=1; i<=PocetMenu; i++) {
      menu = document.getElementById('submenu'+i);	
      menu.style.visibility="hidden";
  }
}