jQuery validate

一、jquery.validate.js

/*! jQuery Validation Plugin - v1.11.0 - 2/4/2013
* https://github.com/jzaefferer/jquery-validation
* Copyright (c) 2013 Jörn Zaefferer; Licensed MIT */

(function($) {

$.extend($.fn, {
	// http://docs.jquery.com/Plugins/Validation/validate
	validate: function( options ) {

		// if nothing is selected, return nothing; can't chain anyway
		if ( !this.length ) {
			if ( options && options.debug && window.console ) {
				console.warn( "Nothing selected, can't validate, returning nothing." );
			}
			return;
		}

		// check if a validator for this form was already created
		var validator = $.data( this[0], "validator" );
		if ( validator ) {
			return validator;
		}

		// Add novalidate tag if HTML5.
		this.attr( "novalidate", "novalidate" );

		validator = new $.validator( options, this[0] );
		$.data( this[0], "validator", validator );

		if ( validator.settings.onsubmit ) {

			this.validateDele