How to load pop only once for a user?

I have used the below code to load pop on Page load,i dont want it load everytime a user refreshes page

$(function () {
    var overlay = $('<div id="overlay"></div>');
    overlay.show();
    overlay.appendTo(document.body);
    $(document).ready(function() {


        $('.popup').show();

        $('.close').click(function(){
            $('.popup').hide();
            overlay.appendTo(document.body).remove();
            retu false;
        });
        });