[How To]Add Content On Core Products Tabs From Module

[GT ITECH]

Hi everyone, i i have a little problem.

 

I want to make a module that change things in product associations tabs on products page on Back Office.

 

Because it's an native product tab, i tried to insert my html/js in this with the use of hookDisplayBackOfficeTop and a jquery prepend function.

 

My html div show in back office top when i'm in product modification page, but it seems any javascript to move object doesn't work :/ (prepend, insertBefore, Before, etc...)

 

And also because it's more fun, the javascript console doesn't show any error like the code was executed normally.

 

How i am supposed to add things in this tab ?

 

Thank you in advance ^^

[GT ITECH]

Up please i really need it :/