title: Client side validation for a password textbox value
body: <p>I have a web form to submit a new user details. In that for password field, a textbox is used.
  Validation is required for that as 'it shold contain min 8 characters with atleast one non-alphanumeric character'. I'm providing validation for it in web config file as:-</p>
  
  <pre><code>&lt;membership defaultProvider="SQLMembershipProvider"&gt;
    &lt;providers&gt;
        &lt;remove name="SQLMembershipProvider"/&gt;
          &lt;add name="SQLMembershipProvider" connectionStringName="DAFEConnection" minRequiredPasswordLength="8" minRequiredNonalphanumericCharacters="1"   type="System.Web.Security.SqlMembershipProvider" applicationName="WBCPDA" requiresQuestionAndAnswer="false" enablePasswordReset="true" maxInvalidPasswordAttempts="4" passwordAttemptWindow="15" requiresUniqueEmail="true"/&gt;
              &lt;/providers&gt;
          &lt;/membership&gt;
  </code></pre>
  
  <p>This validation is triggered on server side, i.e. when I click 'submit' button.
  I WANT TO VALIDATE THE SAME AT CLIENT-SIDE, i.e. as soon as he enters a non-desired value in text-box.</p>
  
  <p>PLZ help</p>