what is the proper syntax to hide a div on the stage from within two nested symbols?

hi everyone, have started use adobe edge , had prior experience flash.

 

i have button click action inside 2 symbols should hide symbol placed on stage, in turn parent symbol.

 

i tried using following code didn't work:

 

sym.$("step1").hide();

 

thank you!

nuno

getcomposition().getstage().$('step1').hide();

 

basically need think elements , drill down stage.

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