var __loaders = new Array();

function _load() {
    for (var idx = 0; idx < __loaders.length; idx++) {
        var _function_name = __loaders[idx] + '()';
        eval(_function_name);
    }
}

window.onload = _load;

function initIndexMenu() {
	var indexMenu = document.getElementById('index_menu');
	if(!indexMenu) {
		return;
	}
	else {
		var lists = indexMenu.getElementsByTagName('ul');
		for(var i = 0; i < lists.length; i++) {
			var items = lists[i].getElementsByTagName('li');
			for(var j = 0; j < items.length; j++) {
				var theLink = items[j].firstChild;
				theLink.onmouseover = function () {
					var currentUl = this.parentNode.parentNode;
					var imgNbr = this.className.substring(1);
					var oldClassName = currentUl.className;
					var newClassName = currentUl.className+'_'+imgNbr;
					currentUl.className = newClassName;
				}
				theLink.onmouseout = function() {
					var currentUl = this.parentNode.parentNode;
					var oldClassName = currentUl.className;
					var newClassName = oldClassName.substring(0, oldClassName.length - 3);
					currentUl.className = newClassName;
				}
			}
		}
	}
}
__loaders.push('initIndexMenu');