$(document).ready(function(){
  $('form').validate({
    rules: {
      email: {
        required: true,
        email: true
      },
	  pwd: {
        minlength: 4,
        required: true
      }
    },
	messages: {
		  email:"Email is required",
		  pwd: { 
                required: "Provide a password",
                rangelength: jQuery.format("Enter at least {0} characters") 
          }
	}	
  });
});