function openDropdown(){
	document.getElementById('langDropdown').style.display='block';
}
document.onclick = function (e) {
 	 e = e || event
	 var target = e.target || e.srcElement
	 var elemento = document.getElementById('langBox');
	 do {
	  if (elemento == target) {
	   return;
	  }
	  target = target.parentNode;
	 } while (target)
			document.getElementById('langDropdown').style.display='none';
 }
function closeDropdown(){
	document.getElementById('langDropdown').style.display='none';
}