// passage time
var pass = 168;

// display content
var content = 'NEW ';

var currentDate = new Date(); 
var spans = document.getElementsByTagName('span');
for (i = 0; i < spans.length; i++) {
	if(spans[i].getAttribute('class') == 'newmark' ||
	spans[i].getAttribute('className') == 'newmark') {
		time = spans[i].childNodes[0].nodeValue.split(":");
		var entryDate = new Date(time[0], time[1]-1, time[2]);
		var now = (entryDate.getTime() - currentDate.getTime())/(60*60*1000);
		now = Math.ceil(now);
		if(-now <= pass){
			spans[i].innerHTML = content;
			spans[i].style.display = 'inline';
		}
	}
}