function menu(tab){
	if(tab=="0101"){
		location.href="/about/letter.nab";
	}else if(tab=="0102"){
		location.href="/about/history.nab";
	}else if(tab=="0103"){
		location.href="/about/map.nab";
	}else if(tab=="0104"){
		location.href="/about/use.nab";
	}else if(tab=="0105"){
		location.href="/about/notice_list.nab";
	}else if(tab=="0201"){
		location.href="/project/current_list.nab";
	}else if(tab=="0202"){
		location.href="/project/coming_list.nab";
	}else if(tab=="0203"){
		location.href="/project/past_list.nab";
	}else if(tab=="0301"){
		location.href="/academy/current_list.nab";
	}else if(tab=="0302"){
		location.href="/academy/coming_list.nab";
	}else if(tab=="0303"){
		location.href="/academy/past_list.nab";
	}else if(tab=="0401"){
		location.href="/archive/creator_interview_list.nab";
	}else if(tab=="040101"){
		location.href="/archive/creator_interview_list.nab";
	}else if(tab=="040102"){
		location.href="/archive/creator_db_list.nab";
	}else if(tab=="0402"){
		location.href="/archive/artwork_list.nab";
	}else if(tab=="0403"){
		location.href="/archive/article_data.nab";
	}else if(tab=="040301"){
		location.href="/archive/article_data.nab";
	}else if(tab=="040302"){
		location.href="/archive/article_list.nab";
	}else if(tab=="0404"){
		location.href="/archive/news_list.nab";
	}else if(tab=="0501"){
		location.href="/blog/blog_main.nab";
	}else if(tab=="0001"){
		location.href="/main/main.nab";
	}
}