gistfile1.txt

          <form id="filter">
            {{#with profileFilter}}
              <input type="text" name="nameFilter" value="{{search}}" placeholder="Filter users" />

              <fieldset class="radio-fieldset">
                <label>
                  <input type="radio" name="typeFilter" value="" {{typeSelected ''}} />
                  Show all
                </label>
              
                <label>
                  <input type="radio" name="typeFilter" value="mentee" {{typeSelected 'mentee'}} />
                  Mentee
                </label>

                <label>
                  <input type="radio" name="typeFilter" value="mentor" {{typeSelected 'mentor'}} />
                  Mentor
                </label>
              </fieldset>
            {{/with}}
          </form>
          

  'change #filter [name=typeFilter]': function(e) {
    var filter = Session.get('profileFilter');
    filter.type = e.target.value;
    Session.set('profileFilter', filter);
  },
  
  
  profileFilter: function() {
    Session.setDefault('profileFilter', {});
    return Session.get('profileFilter');
  },
  
    
  typeSelected: function(value) {
    var selected = Session.get('profileFilter').type;
    if (selected)
      return { checked: (selected === value) };
    
    // if nothing selected, then value should be ''
    return { checked: (value === '') };
  },