Hello Bob,
Thank you for the submission.
Since there were some discrepancies in the code (duplicated code sections inside the if blocks and the usage of non-initilized datum javascript variable), I updated the example and included some code to focus the date input once you selected a date from the popup calendar. I also preselect the today's date on initial load.
Here is the final version of the sample:
I updated your Telerik points for the involvement.
Kind regards,
Sebastian
the Telerik team