function clear_filter_form(){
    $('#filter_form input:checkbox').removeAttr('checked');
    $('#filter_form').submit();
}

function sort_filter_form(caller_ref){
    $('#filter_form #sort_by').val($(caller_ref).val());
    $('#filter_form').submit();
}

function submit_address_book_form(caller_ref){
	$('#address_book_form #ship_addressbook').val($('#main_form #ship_addressbook').val());
	$('#address_book_form').submit();
}

function initExtra(){



}