jQuery Validate with simple Button

a simple validation when input type button is click using jquery validation plugins

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/jquery.validate.min.js"></script>
<form id="form1" name="form1">
  Field 1: <input id="field1" type="text" class="required" />
  <br/>Field 2: <input id="field2" type="text" class="required" />
  <div>
    <input id="btn" type="button" value="Validate" />
  </div>
</form>

JavaScript

$(function() {
  //simple example 1
  //click event for first button 
  $('#btn').click(function() {
    $("#form1").valid(); //validate form 1
  });
});