How can get this.super() from init function of parent?

Hi all, i conpluse about how i can get function init form parent when i cal this.super() in child. I dont know how can child undertand his parent call function.

UpdateMusic = can.Control.extend({

	  init: function(element,option){

		  this.data = new can.Map({});	
  
          })

createMusic = UpdateMusic.extend({

	   init : function(){

		  { call init from parent}

	  },

  })

I think my response to your other thread answers this question.

http://forums.bitovi.com/t/i-dont-know-how-to-use-this--super-in-canjs/223/2