Jquery validation function not working properly with rails 3.2.1

Rails
1

I’m using Rails -3.2.1. In one of my form I’m using jquery validation.
My form is below

new_account.html.erb

<%= form_for(@account, :url =>{:action=> “create_account”}) do |f| %>

<%= f.label :Account_Name, :class => :style1_bold %> <%= f.text_field :account_name, :class =>"input_border required ONLY_ALPHABET" %>
  <%=f.submit "Add Account" %> <%= link_to "Cancel", home_path, :class=>"style2_link" %>
<% end %> ---------------------------------------------------------------------- In application.js 
//= require jquery
//= require jquery_ujs
// require_tree .
//= require_directory .

    jQuery.noConflict();
    jQuery(document).ready(function(){



      /////////////////////////////////////////////
        //// Validatior for only alphabet
        /////////////////////////////////////////////
        jQuery.validator.addMethod("ONLY_ALPHABET",function(value,element){
            return this.optional(element) || /^[a-zA-Z

]+$/.test(value);
},“Only Alphabet is allowed”);

      /////////////////////////////////////////////
        //// Validation for Create Account
        /////////////////////////////////////////////
        jQuery("#new_account").validate(
        {
              rules: {
                account_account_name: {
                    required: true,
            ONLY_ALPHABET: true,
                    maxlength: 30
                }
            },
            messages: {
                account_account_name: {
                    required: "Please fill category",
                    ONLY_ALPHABET: "Only Alphabet is allowed",
                    maxlength: "Not more than 30 characters"
                }
            }
        });

    });

On Form submit. It doesn’t show my message instead it show jquery
default messages.

I include this file jquery.validate.min.js