function Getsearch() {
  chosen = "";
  chosen = document.search.SearchType.value;
  //alert(chosen) 
  if (chosen == "city") {
    document.search.hotelname.disabled=true; document.getElementById('hotelname').style.display='none';
    document.search.saddress.disabled=true; document.getElementById('saddress').style.display='none';
    document.search.airport.disabled=true; document.getElementById('airport').style.display='none';
    document.search.city.disabled=false; document.getElementById('city').style.display='block';
    document.search.state.disabled=false; document.getElementById('state').style.display='block';
    document.search.country.disabled=false; document.getElementById('country').style.display='block';
    document.search.sortby.disabled=true; document.getElementById('sortby').style.display='none';
    document.search.AirportShuttle.disabled=false; document.getElementById('amenities').style.display='none';
    document.search.Business.disabled=false; document.getElementById('switch').style.display='block';
    document.search.Data.disabled=false;
    document.search.Dry.disabled=false;
    document.search.Fitness.disabled=false;
    document.search.Free.disabled=false;
    document.search.Game.disabled=false;
    document.search.Golf.disabled=false;
    document.search.Meeting.disabled=false;
    document.search.Non.disabled=false;
    document.search.Pets.disabled=false;
    document.search.Restaurant.disabled=false;
    document.search.Room.disabled=false;
    document.search.Swimming.disabled=false;
    document.search.Tennis.disabled=false;
    document.search.Wheelchair.disabled=false;
  } else if (chosen == "hotelname") {
    document.search.hotelname.disabled=false; document.getElementById('hotelname').style.display='block';
    document.search.saddress.disabled=true; document.getElementById('saddress').style.display='none';
    document.search.airport.disabled=true; document.getElementById('airport').style.display='none';
    document.search.city.disabled=false; document.getElementById('city').style.display='block';
    document.search.state.disabled=false; document.getElementById('state').style.display='block';
    document.search.country.disabled=false; document.getElementById('country').style.display='block';
    document.search.sortby.disabled=true; document.getElementById('sortby').style.display='none';
    document.search.AirportShuttle.disabled=true; document.getElementById('amenities').style.display='none';
    document.search.Business.disabled=true; document.getElementById('switch').style.display='none';
    document.search.Data.disabled=true;
    document.search.Dry.disabled=true;
    document.search.Fitness.disabled=true;
    document.search.Free.disabled=true;
    document.search.Game.disabled=true;
    document.search.Golf.disabled=true;
    document.search.Meeting.disabled=true;
    document.search.Non.disabled=true;
    document.search.Pets.disabled=true;
    document.search.Restaurant.disabled=true;
    document.search.Room.disabled=true;
    document.search.Swimming.disabled=true;
    document.search.Tennis.disabled=true;
    document.search.Wheelchair.disabled=true;
  } else if (chosen == "saddress") {
    document.search.hotelname.disabled=true; document.getElementById('hotelname').style.display='none';
    document.search.saddress.disabled=false; document.getElementById('saddress').style.display='block';
    document.search.airport.disabled=true; document.getElementById('airport').style.display='none';
    document.search.city.disabled=false; document.getElementById('city').style.display='block';
    document.search.state.disabled=false; document.getElementById('state').style.display='block';
    document.search.country.disabled=false; document.getElementById('country').style.display='block';
    document.search.sortby.disabled=false; document.getElementById('sortby').style.display='none';
    document.search.AirportShuttle.disabled=false; document.getElementById('amenities').style.display='none';
    document.search.Business.disabled=false; document.getElementById('switch').style.display='block';
    document.search.Data.disabled=false;
    document.search.Dry.disabled=false;
    document.search.Fitness.disabled=false;
    document.search.Free.disabled=false;
    document.search.Game.disabled=false;
    document.search.Golf.disabled=false;
    document.search.Meeting.disabled=false;
    document.search.Non.disabled=false;
    document.search.Pets.disabled=false;
    document.search.Restaurant.disabled=false;
    document.search.Room.disabled=false;
    document.search.Swimming.disabled=false;
    document.search.Tennis.disabled=false;
    document.search.Wheelchair.disabled=false;
  } else if (chosen == "airport") {
    document.search.hotelname.disabled=true; document.getElementById('hotelname').style.display='none';
    document.search.saddress.disabled=true; document.getElementById('saddress').style.display='none';
    document.search.airport.disabled=false; document.getElementById('airport').style.display='block';
    document.search.city.disabled=true; document.getElementById('city').style.display='none';
    document.search.state.disabled=true; document.getElementById('state').style.display='none';
    document.search.country.disabled=true; document.getElementById('country').style.display='none';
    document.search.sortby.disabled=false; document.getElementById('sortby').style.display='none';
    document.search.AirportShuttle.disabled=false; document.getElementById('amenities').style.display='none';
    document.search.Business.disabled=false; document.getElementById('switch').style.display='block';
    document.search.Data.disabled=false;
    document.search.Dry.disabled=false;
    document.search.Fitness.disabled=false;
    document.search.Free.disabled=false;
    document.search.Game.disabled=false;
    document.search.Golf.disabled=false;
    document.search.Meeting.disabled=false;
    document.search.Non.disabled=false;
    document.search.Pets.disabled=false;
    document.search.Restaurant.disabled=false;
    document.search.Room.disabled=false;
    document.search.Swimming.disabled=false;
    document.search.Tennis.disabled=false;
    document.search.Wheelchair.disabled=false;
  } else {
    alert("Invalid Search Type");
  }
}
<!--
    function toggle(id) {
       var e = document.getElementById(id);
       if(e.style.display == 'block') {
          e.style.display = 'none';
       }else{
          e.style.display = 'block';
}
}
//-->