title: Show jQuery popup only at first visit of a page
body: <p>I am new to <a href="http://en.wikipedia.org/wiki/JQuery" rel="noreferrer">jQuery</a>, and I have some needs on my website. I want to show the jQuery div popup at the first time only when the user comes. No need to show again and again.</p>
  
  <p>Still I am using this, but I don't know how to hide at the second time:</p>
  
  <pre><code>var isshow=0;
  $(document).ready(function() {
     if (isshow == 0) {
       $('#jPopup').show();
     }
     isshow = 1;
  });
  </code></pre>
  
  <p>But the ishow variable initializes every time.</p>