// ランダム広告
function randomAdv() {
  m = 0, x = 0, y = 0;
  ad  = new Array();
  adv = new Array();
  hit = new Array();

  // hitには相対確率を入れる
  // 完全にランダムにするなら全部"1"にする
  // advには、広告のタグを入れる。改行はしないようにする
  // 広告を増やしたりする場合は、"[ ]"の数字が0から順になるようにする
  hit[0] = 1; adv[0] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/102UTF-8.js"></script><div id="182781714" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1714-102.ajp"></script>';
  hit[1] = 1; adv[1] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/105UTF-8.js"></script><div id="182781720" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1720-105.ajp"></script>';
  hit[2] = 1; adv[2] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/106UTF-8.js"></script><div id="182781721" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1721-106.ajp"></script>';
  hit[3] = 1; adv[3] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/107UTF-8.js"></script><div id="182781722" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1722-107.ajp"></script>';
  hit[4] = 1; adv[4] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/114UTF-8.js"></script><div id="182781729" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1729-114.ajp"></script>';
  hit[5] = 1; adv[5] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/115UTF-8.js"></script><div id="182781730" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1730-115.ajp"></script>';
  hit[6] = 1; adv[6] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/123UTF-8.js"></script><div id="182781731" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1731-123.ajp"></script>';
  hit[7] = 1; adv[7] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/124UTF-8.js"></script><div id="182781733" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1733-124.ajp"></script>';
  hit[8] = 1; adv[8] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/122UTF-8.js"></script><div id="182781740" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1740-122.ajp"></script>';
  hit[9] = 1; adv[9] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/110UTF-8.js"></script><div id="182781741" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1741-110.ajp"></script>';
  hit[10] = 1; adv[10] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/121UTF-8.js"></script><div id="18278418" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/418-121.ajp"></script>';
  hit[11] = 1; adv[11] = '<script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/AjaxPages.js"></script><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/json/ec/119UTF-8.js"></script><div id="182781513" ></div><script type="text/javascript" charset="UTF-8" src="http://tools.nsk-sys.com/haru/src/user/18278/1513-119.ajp"></script>';

  for(i=0; i<=hit.length - 1; i++) {
    m += hit[i];
  }
  n = Math.floor(Math.random() * m);
  n++;
  for(i=0; i<=hit.length - 1; i++) {
    x = y;
    y += hit[i];
    if(x<n && n<=y) ad = adv[i];
  }
  document.write(ad);
}