isamap = new Object();
isamap[0] = "_df"
isamap[1] = "_ov"
isamap[2] = "_ov2"

function isimgact(id, act){
        if(document.images) document.images[id].src = eval( "isimages." + id + isamap[act] + ".src");
}

if (document.images) {
	isimages = new Object();

	isimages.menu1_df = new Image();
	isimages.menu1_df.src = "http://www.k-marubozu.jp/template/bz_menu1.gif";

	isimages.menu1_ov = new Image();
	isimages.menu1_ov.src = "http://www.k-marubozu.jp/template/bz_menu1_ov.gif";

	isimages.menu2_df = new Image();
	isimages.menu2_df.src = "http://www.k-marubozu.jp/template/bz_menu2.gif";

	isimages.menu2_ov = new Image();
	isimages.menu2_ov.src = "http://www.k-marubozu.jp/template/bz_menu2_ov.gif";

	isimages.menu3_df = new Image();
	isimages.menu3_df.src = "http://www.k-marubozu.jp/template/bz_menu3.gif";

	isimages.menu3_ov = new Image();
	isimages.menu3_ov.src = "http://www.k-marubozu.jp/template/bz_menu3_ov.gif";

	isimages.top4_df = new Image();
	isimages.top4_df.src = "http://www.k-marubozu.jp/template/bz_top4.jpg";

	isimages.top4_ov = new Image();
	isimages.top4_ov.src = "http://www.k-marubozu.jp/template/bz_top4_ov1.jpg";

	isimages.top4_ov2 = new Image();
	isimages.top4_ov2.src = "http://www.k-marubozu.jp/template/bz_top4_ov2.jpg";
}