Submitted version 2.6.1 of the plugin to incorporate operation with One Page Checkout and a few other minor updates/modifications.

(v2.6.1) as identified by a few people, the new checkout plugin that offers a single page check (One Page Checkout) was found not to be compatible with this plugin. This version incorporates use of notifiers in that software and the way it has reworked core Zen Cart operation to maintain operation. Also more work has been done to move operations further away from the core code and to make use of common characteristics in the Zen Cart software.
- Modified the template files to expand the ability to offer modified content.
- Modified usage of global variables to reference $GLOBALS[''] instead of using the global construct.
- Updated the jscript_a-mootools.js file to version 1.2.5.


When it is available, it should be downloadable from the plugin page: https://www.zen-cart.com/downloads.php?do=file&id=683

It is also available on GitHub at the following location: ​https://github.com/mc12345678/order-delivery-date