[Done v2.0] usps first class breaks validation on checkout

Running 1.38a+security+FEC, with usps shipping module enabled for priority and 'first class'. When I run validator.w3.org on the page, it reports the following (and other related) errors:

Line 276, Column 126: value of attribute "id" must be a single token

…="updateForm();" id="ship-usps-FIRST CLASS" />	  <label for="ship-usps-FIRST 

This attribute can not take a space-separated list of words as a value, but only one word ("token"). This may also be caused by the use of a space for the value of an attribute which does not permit it

I've looked via the Developer's ToolKit and 'first class' is a database entry for the usps module and it's the space between 'first' and 'class' that gets the validator's knickers in a bunch.

Your fix with FEC will be different than the following since it does its own thing for checkout.

In original Zen Cart v1.3.8a files, one would fix that by changing lines 99-100 of tpl_checkout_shipping_default.php as such:```

<label for="ship-<?php echo $quotes[$i]['id'] . '-' . [B]str_replace(' ', '-', [/B]$quotes[$i]['methods'][$j]['id'][B])[/B]; ?>" class="checkboxLabel" ><?php echo $quotes[$i]['methods'][$j]['title']; ?></label>

Thanks, DrByte, I thought it was going to be much more pervasive a change.