Form Validation magento

Question

I create form on success page with id varification-sms-code and add class input-text required-entry validate-email but not working

var validator = new Validation('varification-sms-code', {immediate : true});
validator.validate();

Answer 1

you need to use this

<script type="text/javascript">
//<![CDATA[
    var validatoryourForm = new VarienForm('your-form-Id', true);
//]]>
</script>

Answer 2

You can use the following code :

 <script type="text/javascript">
   //<![CDATA[
     var validator = new VarienForm('varification-sms-code', true);
   //]]>
 </script>