<script>

jQuery( document ).ready(function() {

jQuery(".et_bloom_optin_2 .et_bloom_submit_subscription").click(function(){
    var name_val = jQuery(".et_bloom_optin_2 .et_bloom_subscribe_name input").val();
if(name_val.trim() == '') {jQuery(".et_bloom_optin_2 .et_bloom_subscribe_name input").addClass('et_bloom_warn_field');
return false;}else{jQuery(".et_bloom_optin_2 .et_bloom_subscribe_name input").removeClass('et_bloom_warn_field');}
});

});

</script>