title: How can i give password validation in flex
body: <p>I want the validator for password text input. </p>
  
  <ul>
  <li>At least one Upper case letter</li>
  <li>At least one numeric character</li>
  <li>At least one special character such as @, #, $, etc.</li>
  </ul>
  
  <p>should be there in password how can i give it in action script or mxml.please help me. 
  Thanks.</p>