Adding Clicked Current Time To Form

[ooaykac]

I want to add clicked time to form for each item which is clicked.

This the original submit form:

Array
(
    [product_data] => Array
        (
           [category_ids] => Array
                (
                    [0] => 15
                    [1] => 14
                )
    )

)

I am trying to change this form like that below:

Array
(
    [product_data] => Array
        (
           [category_ids] => Array
            [0] => Array ( 
                [time] => 464798744 
                [id] => 15 
              )
            [1] => Array ( 
                [time] => 898645323 
                [id] => 14 
              )


       
    )

)

I tried open an input and populate it with current time for each item but never success to send it as form instead of old form.

any idea?