Countdown component for Community Builder

I need a very simple countdown component or code for a Joomla 1.5, Community Builder website. I need it to countdown to a date entered by a user in their community builder profile. Basically i will make a number of fields in community builder - cb_eventdate cb_messagebeforeevent cb_messageonevent cb_messageafterevent The user can input a date in cb_eventdate, and messages to display on their profile in cb_messagebeforeevent cb_messageonevent cb_messageafterevent On their profile, the cb_eventdate will show, with a countdown - 7 days left till event, etc and then display a message from cb_messagebeforeevent which will display 1 day before the event, a message from cb_messageonevent will display on the day of the event, and a message from cb_messageafterevent will display a day after the event. Example user input stored in cb: cb_eventdate - 28/10/10 cb_messagebeforeevent - 1 day left people, can\'t wait ! cb_messageonevent - today is the wedding day !!! cb_messageafterevent - thank you to everyone for coming, hope you had a great time ! User profile: (26th Oct) The wedding date is 28th October 2010 - 2 days left (27th Oct) The wedding date is 28th October 2010 - 1 day left people, can\'t wait ! 28th Oct today is the wedding day !!! 29th Oct thank you to everyone for coming, hope you had a great time ! Many thanks