[jQuery] how to the pass element to a plugin ?

[jQuery] how to the pass element to a plugin ?

Hi
I am calling my plugin this way :
    $().accordionQuizz('accordion');
my plugin gets the param this way :
jQuery.fn.accordionQuizz = function(accordion){    
      jQuery(accordion+' input[@type=radio], #'+accordion+' label').each(function(){
How to do in order to call the plugin this way :
    $('#accordion').accordionQuizz();
thanks
Olivier