function msend()
{
    var email;
    email = 'zapros';
    email = email + '@';
    email = email + 'promnagrev.ru';
    open("mailto:"+email ,"www","")
}

function checkParent(src, dest) {
 while (src != null) {
  if (src.tagName == dest)
   return src;
  src = src.parentElement;
 }
 return null;
}

function outline() {
 var open = event.srcElement;
 var el = checkParent(open, "LI");
 if (null != el) {
  var pos = 0;
  for (pos = 0; pos < el.children.length; pos++)
   if ("UL" == el.children[pos].tagName)
   break;
  if (pos == el.children.length)
   return;
 }
 else
  return;
 el = el.children[pos];
 if ("UL" == el.tagName) {
  if ("" == el.style.display)
   el.style.display = "block";
  else
   el.style.display = "";
 }
 event.cancelBubble = true;
}
document.onclick = outline;