Dialog seems to destroy form data

Dialog seems to destroy form data

Hi Guys,
 
I am new to Jquery, so I apologize for any stupid questions, but I am stuck on something.
 
I have a plain html form, with a button to open a dialog box with checkboxes for users to select multiple options. When I close the dialog and press submit, the data from the dialog box does not post to my action page!
 
How can I keep the checkbox data and post this data to the action page?