if (document.getElementById) {
  document.write('<style type="text/css">\n')
  document.write('.submenu{display: none;}\n')
  document.write('.subsubmenu{display: none;}\n')
  document.write('</style>\n')
}

var SwitchMenuAnt = 0;

function SwitchMenu(obj) {
	
if(SwitchMenuAnt != 0 && SwitchMenuAnt != obj) {
	SwitchMenu2(SwitchMenuAnt);
	SwitchMenuAnt = obj;
}
else
{
	SwitchMenuAnt = obj;
}
  if(document.getElementById) {
    var el = document.getElementById(obj);
    var ar = document.getElementById("desplegable").getElementsByTagName("span");
    if(el.style.display != "block") {
      for (var i=0; i<ar.length; i++) {
        if (ar[i].className=="submenu")
          ar[i].style.display = "none";
      }
      el.style.display = "block";
    } else {
      el.style.display = "none";
    }
  }
}

function SwitchMenu2(obj) {

  if(document.getElementById) {
    var el = document.getElementById(obj);
    var ar = document.getElementById("desplegable").getElementsByTagName("span");
    if(el.style.display != "block") {

    } else {
      el.style.display = "none";
    }
  }
}