//passage time
var pass = 24;

//display content
var content = '<img src="/school/common_img/icon_new.gif" alt="NEW" width="32" height="13" class="icon" />';

var currentDate = new Date(); 
var spans = document.getElementsByTagName('span');
for (i = 0; i < spans.length; i++) {
	if (spans[i].getAttribute('class') == 'new' || spans[i].getAttribute('className') == 'new') {
		if (spans[i].childNodes[0]) {
			time = spans[i].childNodes[0].nodeValue.split(":");
			var entryDate = new Date(time[0], time[1]-1, time[2], time[3], time[4], time[5]); 
			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';
			}
			else {
				spans[i].innerHTML = '';
			}
		}
	}
}