Untitled

Use another jQuery form validation plugin in Yii
<div id="error-message" style="display: none">
    Please fill out all required fields!
</div>

$('form').walidate({
    doIfSomethingIsInvalid: function() {
        // will be executed after clicking the submit-button
        // if a required input is empty.
        $('#error-message').fadeIn().delay(2500).fadeOut();
    }
});

$('.mail').walidate('validate', {
    valid: function() {
        $(this).next('.errorMsg').remove();
    },
    invalid: function() {
        $(this).after('<em class="errorMsg">Please enter a valid e-mail adress</em>');
    }
);