wicket + javascript

i'm jacket adult javascript widget wicket component. i wish let js side pronounce component. i've got far:

component doubt goes like

talker = new gridajaxbehavior();
this.add(talker);    

in constructor

and then, after on, puts something like

"var mygridtalker = new talker(" + this.talker.getcallbackurl() + ");";

into js.

where gridajaxbehavior extends abstractdefaultajaxbehavior. i wish gridajaxbehavior removed behind xml js calls it.

am i doing right way? should gridajaxbehaviour removed behind xml?

thanks