Drupal URL Arguments in Javascript

Sometimes a prerequisite to getting a burrito for lunch involves using Drupal URL arguments in Javascript. So for example, say you had a URL like this:

http://www.tylerfrankenstein.com/chicken/burrito/combo

You can add code like this to your module:

function my_module_init () {
  drupal_add_js(array('arg' => arg()),'setting');
}

And finally you can use code like this in Javascript to use the Drupal URL arguments:

var drupal_arg0 = Drupal.settings.arg[0];
var drupal_arg1 = Drupal.settings.arg[1];
var drupal_arg2 = Drupal.settings.arg[2];

alert(drupal_arg0); // alert chicken
alert(drupal_arg1); // alert burrito
alert(drupal_arg2); // alert combo

There you have it, access to your Drupal URL arguments in Javascript. Now go get something to eat and get back to writing code... or else.