function faq(show_ques) {
  document.getElementById("question1").style.display = "none";
  document.getElementById("question2").style.display = "none";
  document.getElementById("question3").style.display = "none";
  document.getElementById("question4").style.display = "none";
  document.getElementById("question5").style.display = "none";
  document.getElementById("question6").style.display = "none";
  document.getElementById("question7").style.display = "none";
  document.getElementById("question8").style.display = "none";
  document.getElementById("question9").style.display = "none";
  
  document.getElementById(show_ques).style.display = "block";
}