rem: for(var i = 0; i < this.observers.length; i++) this.observers[i][eventName](draggable); 
add: this.observers.invoke(eventName, draggable); 
context:   notify: function(eventName, draggable) {  // 'onStart', 'onEnd'    for(var i = 0; i < this.observers.length; i++)      this.observers[i][eventName](draggable);  }
meta: 1371	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1371/3f913f897829fb026ef98df2d57f8da94ee5339d/dragdrop.js/clean/public/javascripts/dragdrop.js