addEventListener not working in IE8

Question

I have created a checkbox dynamically. I have used addEventListener to call a function on click of the checkbox, which works in Google Chrome and Firefox but <

Answer 1

if (document.addEventListener) {
    document.addEventListener("click", attachEvent, false);
}
else {
    document.attachEvent("onclick", attachEvent);
}
function attachEvent(ev) {
    var target = ev.target || ev.srcElement;
    // custom code
}