(function(window, document) {
function main() {
// GoogleAdSense読込み
var ad = document.createElement('script');
ad.type = 'text/javascript';
ad.async = true;
ad.crossorigin = 'anonymous';
ad.src = 'https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2832945088796159';
var sc = document.getElementsByTagName('script')[0];
sc.parentNode.insertBefore(ad, sc);
}
// 遅延読込み
var lazyLoad = false;
function onLazyLoad() {
if (lazyLoad === false) {
// 複数呼び出し回避 + イベント解除
lazyLoad = true;
window.removeEventListener('scroll', onLazyLoad);
window.removeEventListener('mousemove', onLazyLoad);
window.removeEventListener('mousedown', onLazyLoad);
window.removeEventListener('touchstart', onLazyLoad);
window.removeEventListener('keydown', onLazyLoad);
main();
}
}
window.addEventListener('scroll', onLazyLoad);
window.addEventListener('mousemove', onLazyLoad);
window.addEventListener('mousedown', onLazyLoad);
window.addEventListener('touchstart', onLazyLoad);
window.addEventListener('keydown', onLazyLoad);
window.addEventListener('load', function() {
// ドキュメント途中（更新時 or ページ内リンク）
if (window.pageYOffset) {
onLazyLoad();
}
});
})(window, document);
