Problem in jquert datetimepicker with timezone

Problem in jquert datetimepicker with timezone

Hi,

I am facing a different issue in jquery datetimepicker.

Here is the details:
1. I have set the time zone info in the jquery initialization.
2. when i select the date/time in the picker , set the text box with date time along with time zone is perfect.

But unable to delete the time zone using backspace key. i can able to delete the DD/MM/YYYY AM/PM.

When i try to delete the time zone from text box, the value retained.

For example: date displayed in the field like 13/09/2012 10:00 AM EST
Unable to delete the EST using Backspace key but i can able to delete the rest of thing.

I too checked all section in my solution for all events like keypress/keydown. no use

Kindly suggesst how to get resolved. and how to handle the time zone properly for all possible format?

Thanks,
Hari