document.getElementById("otrosDesplegable").onmouseout = closeMenu;

function openCloseMenu(event, id) {
	el = document.getElementById(id);
	if (el.style.visibility == "visible") {
		//cerrar
		if (window.event) //si es IE
			document.getElementById('zona').style.visibility = 'visible';
		el.style.visibility = 'hidden';
	} else
		openMenu(event, id);
}

function openMenu(event, id) {
  // var el, x, y;
  el = document.getElementById(id);
  /* if (window.event) {
    x = window.event.clientX + document.documentElement.scrollLeft
                             + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop +
                             + document.body.scrollTop;
  }
  else {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }
  x -= 2; y -= 2;
  el.style.left = x + "px";
  el.style.top  = y + "px"; */
  el.style.visibility = "visible";
  if (window.event) // para saber si es IE
	  document.getElementById('zona').style.visibility = 'hidden';
}

function closeMenu(event) {

  var current, related;

  if (window.event) {
    current = this;
    related = window.event.toElement;
  }
  else {
    current = event.currentTarget;
    related = event.relatedTarget;
  }

  if (current != related && !contains(current, related)) {
    if (window.event) // para saber si es IE
	  	 document.getElementById('zona').style.visibility='visible';
    current.style.visibility = "hidden";
  }
}

function contains(a, b) {

  // Return true if node a contains node b.

  while (b.parentNode)
    if ((b = b.parentNode) == a)
      return true;
  return false;
}