function initConfigClients() { var buttons = document.getElementsByClassName("delete"); for(index = 0; index < buttons.length; index++) { var button = buttons[index]; addCCClickHandler(button); } } function addCCClickHandler(elem) { elem.addEventListener("click", function() { if (!confirm(deleteMessage.replace("{0}", elem.getAttribute("client")))) { event.preventDefault(); return false; } }); } document.addEventListener("DOMContentLoaded", function() { initConfigClients(); }, true);