function highlight(_obj) {
	classStr="";

	switch (_obj.className) {
	  case "nav1normal": classStr="nav1select"; break;
	  case "nav1select": classStr="nav1normal"; break;
	  case "nav2normal": classStr="nav2select"; break;
	  case "nav2select": classStr="nav2normal"; break;
	}

	_obj.className=classStr;
}

function changeLocation(_href) {
	window.location.href = _href;
}