I've got this function:

$(document).ready(function() {

$('.post_button, .btn_favorite').click(function() {





//Fade in the Popup

$('.login_modal_message').fadeIn(500);



// Add the mask to body

$('body').append('<div class=overlay></div>');

$('.overlay').fadeIn(300);  

return false;

});

My page loads content with favourite buttons, but after Ajax call and generated additional new content the function doesn't work when you click new content's buttons. What could be not right?