Im creating modal popup using jquery. Im firing the modal pop up through button click event and the corresponding code here

 $(document).ready(function () {
            $("#Button1").click(function () {
                el = document.getElementById("overlayDiv");
                el.style.visibility = "visible";
                el1 = document.getElementById("progress");
                el1.style.visibility = "visible";
                el2 = document.getElementById("image");
                el2.style.visibility = "hidden";
            });
        });

This works when I click the button at first, after that it doesnt works.

Thanks, Hari.