gistfile1.js

methods : {
			load : function() {				
				//load element: new source button
				this.newSourceButton = new Interface.Button({buttonValue : "New Source"});
				this.newSourceButton.load(this.mid1Element, this.onSourceButtonClick);

			},
			
			onSourceButtonClick : function() {
				console.log(this); //returns window
			}
		}