Back office :
Add a class on TD in list created by getList()
In fields_list array of AdminController, we can add a new parameter('class')
example :
'name' => array(
'title' => $this->l('Name'),
'width' => 150,
'class' => 'ma_classe',
'filter_key' => 'b!name'
),
This parameter can be used for javascript effect, ...
Thanks.