*Note : This will show popup once per browser as the data is stored in browser memory.
Try HTML localStorage.
Methods :
localStorage.getItem('key');
localStorage.setItem('key','value');
$j(document).ready(function() {
if(localStorage.getItem('popState') != 'shown'){
$j('#popup').delay(2000).fadeIn();
localStorage.setItem('popState','shown')
}
$j('#popup-close, #popup').click(function() // You are clicking the close button
{
$j('#popup').fadeOut(); // Now the pop up is hidden.
});
});