Popup on page load in JQM

Popup on page load in JQM

Dear Gurus! I'm opening a popup on page load.  Below is an example. (Thank you Bagman!) Unfortunately, when I return to the page, the popup reappears. How can I achieve that only appear the first time?

Thak you and sorry for my English.


    <div data-role="page">
        <div data-role="header">
            <h1>Page Title</h1>
        </div>
        <div data-role="content">
            Page Content
            <div data-role="popup" id="myPopup" data-history="false">
              <p>This is a completely basic popup, no options set.<p>
            </div>
            <script type="text/javascript" language="JavaScript">
                $(":jqmData(role='page'):last").on("pageshow", function(event) {
                  $("#myPopup", $(this)).popup("open");
                });
            </script>
        </div>
    </div>