JQuery :: Add Validate Plugin Functionality To A D7 Form?

I'm trying to add jQuery validate plugin functionality to a D7 form. Here's what I've done so far: Enabled jQuery update module, so we're using jQuery 1.4.2 validate plugin in my theme's script folder Created form.js & called both it, and the validate plugin, in my .info file

Here's the initial contents of form.js:

(function ($) {
$(document).ready(function() {
// validate signup form on keyup and submit
var validator = $("#webform-client-form-53").validate({

[Code].....

The error is an unexpected "(". This is the syntax shown in the documentation, so I don't see what’s wrong here. After some checking, I was able to determine that it's the 2nd "(" that in line 6 that is being flagged.