', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '' ]; // 四角336×280／300×250系バナー（affiliate_id=dmmcommerce-007） var squareBannersHtml = [ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '' ]; // 重複なしで2つずつランダム選出 function pickUnique(arr) { var temp = arr.slice(), out = []; for (var i = 0; i < 2; i++) { var idx = Math.floor(Math.random() * temp.length); out.push(temp.splice(idx, 1)[0]); } return out; } var chosenLong = pickUnique(longBannersHtml); var chosenSquare = pickUnique(squareBannersHtml); // 指定コンテナへ挿入＆script再実行 function inject(id, html) { var c = document.getElementById(id); c.innerHTML = html; var old = c.querySelector("script"); var n = document.createElement("script"); n.className = old.className; n.src = old.src; old.parentNode.replaceChild(n, old); } window.addEventListener("DOMContentLoaded", function() { inject("banner-top-left", chosenLong[0]); inject("banner-top-right", chosenLong[1]); inject("banner-bottom-left", chosenSquare[0]); inject("banner-bottom-right",chosenSquare[1]); });