Hi. all.

I created a JQuery function

 

 $(document).ready(function() {
                $('[id$=btnReadMore]').click(function () {
                      $('[id$=loadingImg]').show();
                      $('[id$=btnReadMore]').hide();
                      document.getElementById("<%= UpdateProgress1.ClientID %>").style.visibility = "hidden";
                });
        });

 

It works fine the first time when I click the button 

 

but after that when I click the button again it does not execute at all.

 

What causes the problem?

 

Thank you.