$( function() {
    $('.door_code').each( function () {
        var dr = $(this);
        var drc = $('#'+dr.attr('id')+'_code');
        if (drc) {
            drc.css('display', 'none');
            dr.css('cursor', 'pointer');
            dr.css('padding-left', '25px');
            dr.css('background', 'url(/image/engine/16x16/right.gif) left center no-repeat');
            dr.click(function(){
                var drt = $(this);
                var dre = $('#'+drt.attr('id')+'_code');
                dre.slideToggle();
            });
        }
    });
})