window.addEvent('domready',function(){
  
  var size_manager = new Manager.Area('map_sizes_container','/ajax/model/get_size_select');
  size_manager.setParameter('gender',$('map_form_gender').value);
  
  $('map_form_gender').addEvent('change',function(e) {
    if(this.value == "")
      size_manager.removeParameter('gender');
    else
      size_manager.setParameter('gender',this.value);
      
    size_manager.update(true);
  });
  
  $('map_form_sub_category_id').addEvent('change',function(e) {
    if(this.value == "")
      size_manager.removeParameter('sub_category_id');
    else
      size_manager.setParameter('sub_category_id',this.value);
  
    size_manager.update(true);
  });
  
  size_manager.setParameter('sub_category_id',$('map_form_sub_category_id').value);
  size_manager.update(true);
  
});