$(document).ready(function(){ 
      $('#profession-add').hide();
      $('#school-add').hide();
  $("#profession :input[@name='profession']").change(function(){
    if ($("#profession :input[@name='profession']:checked").val() == 'other') {
      $('#profession-add').slideDown('fast');
      $(':input#profession_other').removeAttr('disabled');
      $(':input#school').attr('disabled', true);
      $('#school-add').slideUp('fast');
    }    
    else if ($("#profession :input[@name='profession']:checked").val() == 'student') {
      $('#school-add').slideDown('fast');
      $('input#school').removeAttr('disabled');
      $(':input#profession_other').attr('disabled', true);
      $('#profession-add').slideUp('fast');
    }
    else {
      $('#school-add').slideUp('fast');	    
      $('#profession-add').slideUp('fast');	    
    }
  });
});