javascript - How to show alert box after the link is click

Hello this is what i want to do. I want to show the alert box after the user click the link. My link is directed to another php page but it will come back again to the page where the link is found. How can i achieve this? Can someone give me ideas on how to do it?

this is what i tried but not working.

function fsa() {
  echo '
';
  echo 'Successfully posted!';
  echo '
';
}


Import Database   

Answer

This is an example to show the dissmissable alert box when clicking on a button.

$(document).ready(function() {
  $('.activater').click(function() {
    $('.alert').show()
  })
});

.alert {

  display: none;
}

  

    
Dismissal Alert Messages
    

    SHOW MESSAGE
    

      
      Success! message sent successfully.