// JavaScript: activate JQuery validate plugin
  $(document).ready(function(){

  jQuery.validator.addMethod("alphanumeric", function(value, element) {
	return this.optional(element) || /^\w+$/i.test(value);
  }, "Letters, numbers, spaces or underscores only please");  

	// validate signup form on keyup and submit
	$("#loginform").validate({
		rules: {
			login: {
				required: true,
				minlength: 8,
				maxlength: 35
			},
			password: {
				required: true,
				alphanumeric: true,
				minlength: 8,
				maxlength: 35
			}
		},
		messages: {
			login: {
				required: "Please enter a login name"
			},
			password: {
				required: "Please provide a password"
			}
		}
	});
	
});