function showDropDownCountry(){

  var elem = document.getElementById("drop");
  
  elem.style.display = "block";
  
} 
  function hideDropDownCountry(){
  
  var elem = document.getElementById("drop");
  
  elem.style.display = "none";
  
} 

function hideElement(id){

  var elem = document.getElementById(id);
  
  elem.style.display = "none";
  
} 

function showElement(id){

  var elem = document.getElementById(id);
  
  elem.style.display = "block";
  
}