Closing toolbar pop-up box on click

Hi,

Here is some javascript that will close the pop-up box on click for conversations/notifications of the toolbar :

jQuery(document).ready(function(){

jQuery('#es.popbox--navbar').click(function(){

    jQuery('#es.popbox--navbar').hide();

});  

 }); 

This javascript works, however it is not applied to the pop-up box as this pop-up is opened and loaded after the the page is loaded.

Can you tell me to which file I should add it so that it is applied at the moment that the pop-up box is open and not on pageload?
(I could not find any js in /module/mod_easysocial_toolbar/)