APEX

I have a question about the dynamic actions.

In my page onload proces I add id's and classes to the list items from the Region Display Selector.

When I examine the page with firebug I see the ID's and the classes.

When I try to use these id's or classes in my dynamic actions nothing happens.

this is my onload code:

$("ul[class=apex-rds]").children().each(function(i){$(this).attr('id','rds_'+i);$(this).addClass('rds_'+i);});

I try to use these classes or id's by defining a dynamic action using
selection type = Jquery selector and
Jquery selector = .rds_1
or
Jquery selector = #rds_1

I try them both.

Is it possible what I am trying to do?

When I use the generate class .apex-rds-first, then the dynamic action is working correct.