/* ロゴ決定 */
function setlogo() {
          var n,today,md;
          var logo = new Array(4);
          logo[0] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo01.gif' ALT='logo' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          logo[1] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_Xmas01.gif' ALT='logo_Xmas' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          logo[2] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_newyear01.gif' ALT='logo_newyear' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          logo[3] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_valentine01.gif' ALT='logo_St. Valentine's Day' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          logo[4] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_girls01.gif' ALT='logo_Girls' Festival' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'><BR>";
          logo[5] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_children01.gif' ALT='logo_Children's Day' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          logo[6] = "<IMG SRC='http://hpcgi1.nifty.com/piyo/filesafe/tfsafe_img.cgi/img/logo_starfestival01.gif' ALT='logo_Star Festival' BORDER='0' WIDTH='280' HEIGHT='65' ALIGN='middle'>";
          today=new Date();
          var md = (today.getMonth()+1) + "/" + today.getDate();
          var n=0;
          if (md=="12/24")  n=1; // 12月24,25日の場合 Xmas
          if (md=="12/25")  n=1;
          if (md=="1/1")  n=2; // 1月1〜3日の場合 謹賀新年
          if (md=="1/2")  n=2;
          if (md=="1/3")  n=2;
          if (md=="2/14")  n=3; // 2月14日の場合 St. Valentine's Day
          if (md=="3/3")  n=4; // 3月3日の場合 雛祭り
          if (md=="5/5")  n=5; // 5月5日の場合 子供の日
          if (md=="7/7")  n=6; // 7月7日の場合 七夕
          return logo[n];
}