$(function(){
    if($('body').hasClass('home')) {
        var today = new Date();
        $('.news-area .news-unit').each(function(){
            var tmp = $(this).find('.postdate').text().split(/年|月|日/);
            var postdate = new Date(Date.parse(tmp[0] + '-' + ('0' + tmp[1]).slice(-2) + '-' + ('0' + tmp[2]).slice(-2) + 'T00:00:00'));
            var newLimitDate = new Date(postdate.getTime() + 1000*60*60*24*7*2);
console.log(postdate);
            if(today < newLimitDate){
                $(this).find('.desc').append('<span class="new">NEW!</span>');
            }
        });
    }
});