click action wont work in Edge Animate

I dont know why but my click action wont work with my button. Any help is appreciated.

/***********************

* Adobe Edge Animate Composition Actions

*

* Edit this file with caution, being careful to preserve

* function signatures and comments starting with 'Edge' to maintain the

* ability to interact with these actions from within Adobe Edge Animate

*

***********************/

(function($, Edge, compId){

var Composition = Edge.Composition, Symbol = Edge.Symbol; // aliases for commonly used Edge classes

   //Edge symbol: 'stage'

   (function(symbolName) {

      Symbol.bindElementAction(compId, symbolName, "${_button}", "click", function(sym, e) {

         // insert code for mouse click here

         // Navigate to a new URL in the current window

         // (replace "_self" with appropriate target attribute)

         window.open("http://www.sunbgi.com/thesundifference.html", "_self");

      });

      //Edge binding end

   })("stage");

   //Edge symbol end:'stage'

})(jQuery, AdobeEdge, "EDGE-711263155");