var element = document.getElementsByTagName("a-sphere"); //a-sphereの要素を所得し、elementに配列として入れる[1つ目の<a-sphere>,2つ目の<a-sphere>] element[0].addEventListener("click", function() { location.href = "https://umap.openstreetmap.fr/ja/map/skip_522718#16/38.7042/139.8837"; },false); element[1].addEventListener("click", function() { location.href = "https://www.yatex.org/gitbucket/SKIP/reroad-test/pages/2020-Silk-Reroad/samplepage.html"; },false);