$(document).ready(function(){
  $('#state-selector').change(function(e){
    state = $(this).val();
    if(state != 'none'){
      window.location = 'distributors.php?state='+state;
    }else{
      window.location = 'wheretobuy_distributors.php';
    }
  });
  $('#zipform').submit(function(e){
    zip = $.trim($('#zipform-zip').val());
    if(zip == ''){
      alert('You must enter a zip code to continue.');
      return false;
    }
    reZip = new RegExp(/^\d{5}$/);
    if(!reZip.test(zip)){
      alert('You must enter a 5 digit zip code to continue.');
      return false;
    }
  });
});