jQuery contact form  and the for, is submitting but the  reply showing  that it was sent  is showing up on a bank white page not sure why, want it in the place were the form is any ideas to help with code?????

jQuery(function() { // Shorthand for jQuery(document).ready(function() {
 //  
if (jQuery('.comments-form,.contact-form').length > 0) {
 Modernizr.load([{
  load: ['js/jquery.form.js', 'js/jquery.validate.js'],
  complete: function () {
   jQuery('.comments-form,.contact-form').validate({
    // Add requirements to each of the fields
    rules: {
     name: {
      required: true,
      minlength: 10
     },
     email: {
      required: true,
      email: true
     },
     message: {
      required: true,
      minlength: 20
     }
    },
    // Specify what error messages to display
    // when the user does something horrid
    messages: {
     name: {
      required: kopa_variable.i18n.validate.name.REQUIRED,
      minlength: jQuery.format(kopa_variable.i18n.validate.name.MINLENGTH)
     },
     email: {
      required: kopa_variable.i18n.validate.email.REQUIRED,
      email: kopa_variable.i18n.validate.email.EMAIL
     },
     message: {
      required: kopa_variable.i18n.validate.message.REQUIRED,
      minlength: jQuery.format(kopa_variable.i18n.validate.message.MINLENGTH)
     }
    },
    // Use Ajax to send everything to processForm.php
    submitHandler: function (form) {
     jQuery(".comments-form .input-submit,.contact-form .input-submit").attr("value", kopa_variable.i18n.validate.form.SENDING);
     jQuery(form).ajaxSubmit({
      success: function (responseText, statusText, xhr, $form) {
       jQuery("#response").html(responseText).hide().slideDown("fast");
       jQuery(".comments-form .input-submit,.contact-form .input-submit").attr("value", kopa_variable.i18n.validate.form.SUBMIT);
      }
     });
     return false;
    }
   });
  }
 }]);
}
 })