var img = new Array();
	img[0] = new Image();  img[0].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_imp_on.gif";
	img[1] = new Image();  img[1].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_sys_on.gif";
	img[2] = new Image();  img[2].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_pro_on.gif";
	img[3] = new Image();  img[3].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_lec_on.gif";
	img[4] = new Image();  img[4].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_cls_on.gif";
	img[5] = new Image();  img[5].src = "https://sv23.xserverzero.net/~x1023700/mt-img/nav_rep_on.gif";
	img[6] = new Image();  img[6].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_yok_on.gif";
	img[7] = new Image();  img[7].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_siz_on.gif";
	img[8] = new Image();  img[8].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_repyok_on.gif";
	img[9] = new Image();  img[9].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_repsiz_on.gif";
	img[10] = new Image();  img[10].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_eng_on.gif";
	img[11] = new Image();  img[11].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_exp_on.gif";
	img[12] = new Image();  img[12].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_exp02_on.gif";
	img[13] = new Image();  img[13].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_plssys_on.jpg";
	img[14] = new Image();  img[14].src = "https://sv23.xserverzero.net/~x1023700/mt-img/bot_imm_on.jpg";

//リンク_ナビゲーション
	function overevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/nav_" + n + "_on.gif";
		document.images["nav_" + n].src=imgname;
	}
	function outevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/nav_" + n + "_of.gif";
		document.images["nav_" + n].src=imgname;
	}

//リンク02_gif画像
	function goverevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/bot_" + n + "_on.gif";
		document.images["bot_" + n].src=imgname;
	}
	function goutevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/bot_" + n + "_of.gif";
		document.images["bot_" + n].src=imgname;
	}

//リンク03_jpg画像
	function joverevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/bot_" + n + "_on.jpg";
		document.images["bot_" + n].src=imgname;
	}
	function joutevent(n){
		imgname="https://sv23.xserverzero.net/~x1023700/mt-img/bot_" + n + "_of.jpg";
		document.images["bot_" + n].src=imgname;
	}

//リンク小窓
	function newwin(w){
		winname = w + ".html";
		window.open(winname,"newwin","width=650,height=500,scrollbars=yes,resizable=yes");
	}