http://jsfiddle.net/xs9u54az/1/



<script>
function PopUp(hideOrshow) {
if (hideOrshow == 'hide') document.getElementById('ac-wrapper').style.display = "none";
else document.getElementById('ac-wrapper').removeAttribute('style');
}
window.function () {
setTimeout(function () {
PopUp('show');
}, 1000);
}
</script>