How to populate a multi row form in Apex

Hi
I have a form in Application Express built using "Tabular Form" option while creating the page. The table being filled by the form is as follows
Cell_ID(varchar) reading_date(date) Value1(num) Value2(num) Location(varchar2)
Now I need to do the following
1. I want the page to display 200 rows for data entry on page load itself instead of user clicking Add Row button 200 times. ( For every location 200 entries need to be made for 200 diff Cell_IDs at the same date )
2. I want each row to take value for the Date column from the single date picker item displayed on top of page instead of entering the same date 200 times by user.
3. The cell_IDs are automatically populated with values loc1_001 loc1_002 .......... loc1_200 on selection of Location from another Item (select list) placed on top of the page.
Please Help anyone. Looking forward to a response.
Regards
Saurabh

<h3>Please help any one guys.</h3>

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!http://img216.imageshack.us/img216/7250/screenexample.jpg!
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How to populate a multi row form in Apex

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