Date Picker Relationships in CRM

Date Picker Relationships in CRM

Is there a way to set up date pickers for events (for instance a Start time & End time) so that once you have selected the start time in the first date/Time picker that the date picker pop up for the End time offers you dates that are after the date you just picked as the start time?
Obvioulsy this would make sense due to the end time always being later and it would simply save time in adding events to the calendar.

If that doesn't make sense then this may help:

e.g.
I have a need to create events for each booking we take.  Each event has a start & finish time so i have to have 2 date/time fields for each event to be able to include both times. 
If I click the first date/time field and select a future date for the event eg. December 5th 2010 at 2pm.  I then have to select an Ending time.  So in the next date/time field I click on the date picker icon and it shows me the current month (instead of December) and I have to click through to December and select the 5th again and then select the time.
Is it possible to have the 2nd date/time field (end time) sync with the first date field (start time) so that when the pop-up date-picker for end time comes up it is displaying the same date that I just picked (in start time) as the selected date (or highlighted the way the current date is highighted)?  This way it would eliminate having to navigate through several months every time i have to insert a booking for a date that is months in the future.