$(document).ready(function(){
    var currentDate = new Date();
    $('.newmarkList').each(function(){
            var pass       // passage time
            = 24;
            var content    // display content
            = '<img class="newmark" src="http://ag55.com/images/icon/icon_new.gif" alt="3日以内の新着ブログ記事" width="34" height="17" title="3日以内の新着ブログ記事"/>';
            var newmarkAttr = $(this).attr('title');
            newmarkAttr = newmarkAttr.replace(/年|月|日|時|分/g,':');
            newmarkAttr = newmarkAttr.replace(/\s|秒.*/g,'');
            var time = newmarkAttr.split(":");
            var entryDate = new Date(time[0], time[1]-1, time[2], time[3], time[4], time[5]);
            var now = (currentDate.getTime() - entryDate.getTime())/(60*60*1000);
            now = Math.ceil(now);
            if(now <= pass){
            $(this).before(content);
            }
      });
});