// <ﾌﾟﾘﾛｰﾄﾞ> (ｲﾒｰｼﾞをｷｬｯｼｭしておき、表示を高速化する)
	num = 8;				// ﾊﾞﾅｰの総数
	ban = new Array(num);	// ｲﾒｰｼﾞ格納用の配列
	lin = new Array(num);	// ﾘﾝｸ先ｱﾄﾞﾚｽ格納用の配列

	// ｲﾒｰｼﾞｵﾌﾞｼﾞｪｸﾄ作成
	for(i=0;i<num;i++){
		ban[i] = new Image();
	}

	// ｲﾒｰｼﾞを読込んで、配列に格納
	ban[0].src = "images/banner_siservo1.gif";
	ban[1].src = "images/banner_cutyaxis1.gif";
	ban[2].src = "images/banner_aligner1.gif";
	ban[3].src = "images/banner_cytypair1_1.gif";
	ban[4].src = "images/banner_typhoon.gif";
	ban[5].src = "images/banner_pararobo1a.gif";
	ban[6].src = "images/banner_ika1.gif";
	ban[7].src = "images/banner_impflex1.gif";

	// ﾘﾝｸ先ｱﾄﾞﾚｽを配列に格納
	lin[0] = "products/pro_si2.html";
	lin[1] = "products/pro_cuty3.html";
	lin[2] = "products/p_cutya.html";
	lin[3] = "products/p_cutyp.html";
	lin[4] = "products/p_typhn.html";
	lin[5] = "products/p_para.html";
	lin[6] = "products/p_ika.html";
	lin[7] = "products/p_impe.html";
// </ﾌﾟﾘﾛｰﾄﾞ>

// ﾗﾝﾀﾞﾑﾊﾞﾅｰ表示
function RandomBanner()
{
	i = Math.floor(Math.random()*num);			// 「0～7」までの乱数を取得
	htm = '<a id="lnk" href="' + lin[i] + '"><img name="banner" alt="" width="273" height="100" border="0" src="' + ban[i].src + '"></a>';
	document.write(htm);						// HTMLの出力
	document.close();							// ﾄﾞｷｭﾒﾝﾄｵﾌﾞｼﾞｪｸﾄのｸﾛｰｽﾞ
}

// ﾊﾞﾅｰとﾘﾝｸの変更
function Change(arg)
{
	if( arg <= 0 || arg > num ) arg = 1;		// 引数の範囲ﾁｪｯｸ
	document.banner.src = ban[arg -1].src;		// ﾊﾞﾅｰのｿｰｽを変更
	lnk.href = lin[arg -1];						// ﾊﾞﾅｰのﾘﾝｸ先の変更
}