$(document).ready(function(){
  $('#login').click(function() {
    $('#dialog').dialog('open');
  });
  
  $('#dialog').dialog({
    autoOpen: false,
    height: 280,
    modal: true,
    resizable: false,
  });
  
  $('.cn_login').click(function() {
    $('.cn_dialog').dialog('open');
  });
  
  $('.cn_dialog').dialog({
    autoOpen: false,
    height: 280,
    modal: true,
    resizable: false,
  });
  
    $('.cn_login2').click(function() {
    $('.cn_dialog2').dialog('open');
  });
  
  $('.cn_dialog2').dialog({
    autoOpen: false,
    height: 280,
    modal: true,
    resizable: false,
  });
  
      $('.cn_login3').click(function() {
    $('.cn_dialog3').dialog('open');
  });
  
  $('.cn_dialog3').dialog({
    autoOpen: false,
    height: 280,
    modal: true,
    resizable: false,
  });
  
});