document.addEventListener("DOMContentLoaded", function () { console.log("greetings from javascript", window.location); var name = window.location.href, p = name.lastIndexOf("/"); name = name.substring(p+1); var base = name.substring(0, name.length-5); if (!base.endsWith("_rvrs")) { var rvrs = base + "_rvrs.html"; ("#recto").attr("src", rvrs); // var a = document.createElement("a"); // a.href = rvrs; // a.target= "recto"; // a.innerHTML = "flipside"; // document.body.appendChild(a); } });