Modify checkbox labels through Deluge scripting

Modify checkbox labels through Deluge scripting

In my form, my users can indicate if a requested change is for an entire week or for specific days. If they choose specific days, I have it display a checkbox field that allows them to specify which days. However, I'd like it to dynamically change the labels based on a date they chose earlier. So, for example, if they pick 10/8/2012 from the date field, the specific days should be:

Monday (10/8/2012)
Tuesday (10/9/2012)
Wednesday (10/10/2012)

etc etc.

Is there any way to do this through deluge scripting? Additionally, can I force the multiselect to be required only when it is shown?

Thanks