Customise save, save&close, cancel button of flexicontent item edit page

I want to customize save, save&close and cancel of flexicontent item edit page.

1. When I click on save button it saves the items and redirect to same item in edit view. I want to save the item but when it redirect to edit page I want to
redirect it in &tmpl=component view.
2. Some item are displayed in iframe. When I click on cancel button, I want to add a javascript that execute after redirection and closes the opened iframe.

How to do it...??
Thanks a lot ahead of time.

in your type administration you can add css and js for form

Can you please explain it little more.

go to type administration
tab "item form"
>> tab "item form both"
you have field to insert css and js

I want to customize these button for frontend edit view.
When controller redirect to item after saving that item, how I add &tmpl=component..??

1. When I click on save button it saves the items and redirect to same item in edit view. I want to save the item but when it redirect to edit page I want to
redirect it in &tmpl=component view.
2. Some item are displayed in iframe. When I click on cancel button, I want to add a javascript that execute after redirection and closes the opened iframe.

Actually wanted to include these in the core
with a parameter

Edit in modal
yes / no

It is easy, to add to the core and useful , especial in category view !
just never got around to do it
i ll add it and you can test it