function PreIMG(n){
//	var myDir = 'img/';
	if(n==1){ myDir = '../img/'; }
	else if(n=="hp"){ myDir = '/img/'; }
	else { myDir = 'img/'; }

	inf = new Image();	inf.src = myDir + "btn-01inf.gif";
	inf2 = new Image();	inf2.src = myDir + "btn-01inf_f2.gif";
	lfe = new Image();	lfe.src = myDir + "btn-05lfe.gif";
	lfe2 = new Image();	lfe2.src = myDir + "btn-05lfe_f2.gif";
	ts = new Image();	ts.src = myDir + "btn-03ts.gif";
	ts2 = new Image();	ts2.src = myDir + "btn-03ts_f2.gif";
	sk = new Image();	sk.src = myDir + "btn-06sk.gif";
	sk2 = new Image();	sk2.src = myDir + "btn-06sk_f2.gif";
	kk = new Image();	kk.src = myDir + "btn-04kk.gif";
	kk2 = new Image();	kk2.src = myDir + "btn-04kk_f2.gif";
	saigai = new Image();	saigai.src = myDir + "btn-02saigai.gif";
	saigai2 = new Image();	saigai2.src = myDir + "btn-02saigai_f2.gif";
	bsy = new Image();	bsy.src = myDir + "btn-07bsy.gif";
	bsy2 = new Image();	bsy2.src = myDir + "btn-07bsy_f2.gif";
	lnk = new Image();	lnk.src = myDir + "btn-10link.gif";
	lnk2 = new Image();	lnk2.src = myDir + "btn-10link_f2.gif";
	ss = new Image();	ss.src = myDir + "btn-08ss.gif";
	ss2 = new Image();	ss2.src = myDir + "btn-08ss_f2.gif";
	bkn = new Image();	bkn.src = myDir + "btn-09bk.gif";
	bkn2 = new Image();	bkn2.src = myDir + "btn-09bk_f2.gif";
	scab = new Image();	scab.src = myDir + "btn_s_cab.gif";
	scab2 = new Image();	scab2.src = myDir + "btn_s_cab_f2.gif";
	bmed = new Image();	bmed.src = myDir + "btn_s_medic.gif";
	bmed2 = new Image();	bmed2.src = myDir + "btn_s_medic_f2.gif";
	jyukeiki = new Image();	jyukeiki.src = myDir + "btn_s_jyukeiki.gif";
	jyukeiki2 = new Image();	jyukeiki2.src = myDir + "btn_s_jyukeiki_f2.gif";
	joukai = new Image();	joukai.src = myDir + "btn_s_joukai1803.gif";
	joukai2 = new Image();	joukai2.src = myDir + "btn_s_joukai1803_f2.gif";
	comsub = new Image();	comsub.src = myDir + "btn_s_com-sub.gif";
	comsub2 = new Image();	comsub2.src = myDir + "btn_s_com-sub_f2.gif";
	syukka = new Image();	syukka.src = myDir + "btn_s_syukka.gif";
	syukka2 = new Image();	syukka2.src = myDir + "btn_s_syukka_f2.gif";
	bbsy = new Image();	bbsy.src = myDir + "btn_s_bsy.gif";
	bbsy2 = new Image();	bbsy2.src = myDir + "btn_s_bsy_f2.gif";
	dan = new Image();	dan.src = myDir + "btn_s_dan.gif";
	dan2 = new Image();	dan2.src = myDir + "btn_s_dan_f2.gif";
	bor = new Image();	bor.src = myDir + "btn_s_bor.gif";
	bor2 = new Image();	bor2.src = myDir + "btn_s_bor_f2.gif";
	mus = new Image();	mus.src = myDir + "btn_s_mus.gif";
	mus2 = new Image();	mus2.src = myDir + "btn_s_mus_f2.gif";
	gijyutu = new Image();	gijyutu.src = myDir + "btn_s_gijyutu.gif";
	gijyutu2 = new Image();	gijyutu2.src = myDir + "btn_s_gijyutu_f2.gif";
	bousai = new Image();	bousai.src = myDir + "btn_s_bousai.gif";
	bousai2 = new Image();	bousai2.src = myDir + "btn_s_bousai_f2.gif";
	ta = new Image();	ta.src = myDir + "btn_s_ta.gif";
	ta2 = new Image();	ta2.src = myDir + "btn_s_ta_f2.gif";
	kb = new Image();	kb.src = myDir + "btn_s_kb.gif";
	kb2 = new Image();	kb2.src = myDir + "btn_s_kb_f2.gif";
	yuuryo = new Image();	yuuryo.src = myDir + "btn_s_g_yuryo.gif";
	yuuryo2 = new Image();	yuuryo2.src = myDir + "btn_s_g_yuryo_f2.gif";
	jisin = new Image();	jisin.src = myDir + "btn_s_jisin.gif";
	jisin2 = new Image();	jisin2.src = myDir + "btn_s_jisin_f2.gif";
	elib = new Image();	elib.src = myDir + "btn_s_elib.gif";
	elib2 = new Image();	elib2.src = myDir + "btn_s_elib_f2.gif";
	kids = new Image();	kids.src = myDir + "btn_s_kid_s.gif";
	kids2 = new Image();	kids2.src = myDir + "btn_s_kid_s_f2.gif";
	learn = new Image();	learn.src = myDir + "btn_s_learn.gif";
	learn2 = new Image();	learn2.src = myDir + "btn_s_learn_f2.gif";
	tfd = new Image();	tfd.src = myDir + "btn_s_tfd.gif";
	tfd2 = new Image();	tfd2.src = myDir + "btn_s_tfd_f2.gif";
	hom = new Image();	hom.src = myDir + "m_home.gif";
	hom2 = new Image();	hom2.src = myDir + "m_home_f2.gif";
	tsit = new Image();	tsit.src = myDir + "t_sitemap.gif";
	tsit2 = new Image();	tsit2.src = myDir + "t_sitemap_f2.gif";
	tmob = new Image();	tmob.src = myDir + "t_mobile.gif";
	tmob2 = new Image();	tmob2.src = myDir + "t_mobile_f2.gif";
	tpur = new Image();	tpur.src = myDir + "t_purpose.gif";
	tpur2 = new Image();	tpur2.src = myDir + "t_purpose_f2.gif";
	tpol = new Image();	tpol.src = myDir + "t_policy.gif";
	tpol2 = new Image();	tpol2.src = myDir + "t_policy_f2.gif";
	tmul = new Image();	tmul.src = myDir + "t_multi.gif";
	tmul2 = new Image();	tmul2.src = myDir + "t_multi_f2.gif";
	tmula = new Image();	tmula.src = myDir + "t_multi1.gif";
	tmula2 = new Image();	tmula2.src = myDir + "t_multi1_f2.gif";
	tmulb = new Image();	tmulb.src = myDir + "t_multi2.gif";
	tmulb2 = new Image();	tmulb2.src = myDir + "t_multi2_f2.gif";
	tmulc = new Image();	tmulc.src = myDir + "t_multi3.gif";
	tmulc2 = new Image();	tmulc2.src = myDir + "t_multi3_f2.gif";
	tmuld = new Image();	tmuld.src = myDir + "t_multi4.gif";
	tmuld2 = new Image();	tmuld2.src = myDir + "t_multi4_f2.gif";
	tmule = new Image();	tmule.src = myDir + "t_multi5.gif";
	tmule2 = new Image();	tmule2.src = myDir + "t_multi5_f2.gif";
	bus = new Image();	bus.src = myDir + "btn_s_dan_bus.gif";
	bus2 = new Image();	bus2.src = myDir + "btn_s_dan_bus_f2.gif";
	exhibition = new Image();	exhibition.src = myDir + "btn_exhibition.gif";
	exhibition2 = new Image();	exhibition2.src = myDir + "btn_exhibition_f2.gif";
	kanja = new Image();	kanja.src = myDir + "btn_s_kanja.gif";
	kanja2 = new Image();	kanja2.src = myDir + "btn_s_kanja_f2.gif";
}

function mv(imageID,imageName) {
	document.images[imageID].src = eval(imageName + ".src");
}