function itemRollOver() {
	var nodeList = $$('#mainArea .itemBox li a');
	nodeList.each(function(node) {
		node.onmouseover = function() {
			var targetNode = this.parentNode;
			Element.addClassName(targetNode,'over');
		}
		node.onmouseout = function() {
			var targetNode = this.parentNode;
			Element.removeClassName(targetNode,'over');
		}
	});
}
Event.observe(window, 'load', itemRollOver, false);


function addBlockNewMark() {
	$$('#mainArea h3').each(function(node) {
		addNewMark(node);
	});
}
Event.observe(window, 'load', addBlockNewMark, false);