title: Validating empty or blank value in jquery
body: <p>I am using jquery validation plugin for form validation. I have added a custom method to validate a date in the custom format. But somehow if users don't type anything in that date textbox, it doesn't give any error. Does anybody know how to check for blank or empty value?</p>
  
  <p><strong>EDIT</strong> : May be I didn't frame my question correctly. I want to show error message when user is in textbox for typing the value and he doesn't type anything. <strong>Onblur</strong> kind of event. </p>
  
  <p>Thanks</p>