$(function() {
	var selected = false;
	$('.gnavi').hover(function() {
		$('.submenu').hide();
		$('.submenu', this).show();
		selected = this.id;
	}, function() {
		selected = false;
		setTimeout(function() {
			if(!selected) {
				$('.submenu').hide();
			}
		}, 50);
	});
});