title: errorClass in jquery validate plugin?
body: <p>I am using <a href="http://bassistance.de/jquery-plugins/jquery-plugin-validation/" rel="noreferrer">jquery validate</a> plugin in my web application to validate forms for blank and other simple validations.</p>
  
  <p>I am using below code to setup jquery validate plugin for my form, there is a <code>erroClass</code> option in it, where I have defined a CSS class name <code>authError</code> which I want to apply on error messages, but its applying the same class to INPUT box as well, I don't want to apply it in INPUT box, just want it for error message. Please check and help. Thanks!</p>
  
  <pre><code>$("#frmSignin").validate({
      debug: false,
      errorClass: "authError",
      errorElement: "span",
      rules: {
          username: {
              required: true,
              minlength: 10
          },
          password: {
              required: true  
          }
      },
      messages: {
          username: {
              required: "Please enter your username"
          },
          password: {
              required: "Please enter your password"
          }
      }
  });
  </code></pre>