// 画像・URLリストを配列で作る
var imglist = [
    [ "./upload/top_image/luft3.jpg", "ラグジュアリー感溢れるソファーluft", "./products/list_series.php?category_id=35" ] ,
    [ "./upload/top_image/riche4.jpg", "北欧モダンなカバーリングソファriche", "./products/list_series.php?category_id=3" ],
    [ "./upload/top_image/bunk5.jpg", "シンプルモダンなワイドローソファーbunk", "./products/list_series.php?category_id=4" ] ,
    [ "./upload/top_image/luft4.jpg", "ラグジュアリー感溢れるソファーluft", "./products/list_series.php?category_id=35" ] ,
    [ "./upload/top_image/bunk2.jpg", "ロータイプのワイドソファーbunk", "./products/list_series.php?category_id=4" ] ,
    [ "./upload/top_image/luft2.jpg", "ラグジュアリー感溢れるソファーluft", "./products/list_series.php?category_id=35" ] ,
    [ "./upload/top_image/bunk3.jpg", "シンプルモダンなワイドローソファーbunk", "./products/list_series.php?category_id=4" ] ,
    [ "./upload/top_image/libre01.jpg", "クールモダンなデザインソファlibre", "./products/list_series.php?category_id=27" ] ,
    [ "./upload/top_image/riche1.jpg", "デザイン性の高いカバーリングソファriche", "./products/list_series.php?category_id=3" ],
    [ "./upload/top_image/luft1.jpg", "ラグジュアリー感溢れるソファーluft", "./products/list_series.php?category_id=35" ] ,
    [ "./upload/top_image/riche2.jpg", "北欧モダンなカバーリングソファriche", "./products/list_series.php?category_id=3" ],
    [ "./upload/top_image/bunk1.jpg", "ワイドタイプのローソファーbunk", "./products/list_series.php?category_id=4" ] ,
    [ "./upload/top_image/riche3.jpg", "日本製の高品質なカバーリングソファriche", "./products/list_series.php?category_id=3" ]
    [ "./upload/top_image/standard1.jpg", "こだわりのデザイナーズソファStandard", "./products/list_series.php?category_id=5" ]
];

// 1つ選んで表示する関数
function dailyimagelink() {
    // 日付を元にどれか1つを選ぶ
    var selectnum = Math.floor(((new Date()).getTime()+1000*60*60*9) / (1000*60*60*24)) % imglist.length;
    // 画像とリンクを生成
    var output = 
        '<a href="' + imglist[selectnum][2] + '">' +
        '<img src="' + imglist[selectnum][0] + '"' +
        ' alt="' + imglist[selectnum][1] + '"width="730px" border="0"></a>';
    // 生成したHTMLを出力
    document.write(output);
}