CAML Query to getlistitems of sharepoint list

hi 

i'm having a HTML Form with Product1, product2 , product3 as checkboxes respectively.

The user selects the product and submit the form .

The Values of the Form are stored in sharepoint 2010 list,

where the selected products are stored in the column called selected Products.

if once again the user loads the HTML form , the HTML form have to be loaded with checkboxes of previously selected items

whether it can be accompished in CAML query and spsevices javascript?

Thanks a lot

- David