function setEventLisner(){
	var obj = $("gnavi");
	gnaviList = new Array("schedule", "team", "photo", "guide");
	for(var i=0, length=gnaviList.length; i<length; i++ ){
		var reg = new RegExp('<li\\sid=\\"?gnavi_' + gnaviList[i] + '\\"?>', 'gi');
		var str = '<li id="gnavi_' + gnaviList[i] + '" onmouseover="showSubMenu(this);" onmouseout="hideSubMenu(this);">';
		obj.innerHTML = obj.innerHTML.replace(reg, str);
	}
}
function showSubMenu(obj){
	var el = obj.id + "_sub";
	$(el).style.display = "block";
}
function hideSubMenu(obj){
	var el = obj.id + "_sub";
	$(el).style.display = "none";
}
Event.observe(window, "load", setEventLisner, false);