function validate () {
  if(document.getElementById('name').value=="") {
    alert("Name cannot be blank.");
    return false;
  } else if(document.getElementById('email').value=="") {
	  alert("Email cannot be blank.");
	  return false;
  } else if(document.getElementById('contact').value=="") {
	  alert("Contact No. cannot be blank");
	  return false;
  } else if(document.getElementById('date').value=="") {
	  alert("Preferred Travel Date cannot be blank");
	  return false;
  } else if(document.getElementById('pax').value=="") {
	  alert("No. of Person cannot be blank");
	  return false;
  } else if(document.getElementById('subject').value=="") {
	  alert("Subject cannot be blank");
	  return false;
  }
  return true;
}// JavaScript Document