title: How to validate form in Magento Javascript as you type
body: <p>Magento has awesome Javascript validation library, which can be initialized <code>var myForm= new VarienForm('[your form id]', true);</code>. However this validation function is triggered when one click on submit button.</p>
  
  <p>Is not there way to validate particular field as you type. For example if I type postal code 2 digit and go to second field, it should instantly validate postal code and show error. As postal code require at least 5 digits.</p>
  
  <p>thanks</p>