text: opera.isReady(function() {
      window.addEventListener("load", function() {
  	var theButton;
  	var ToolbarUIItemProperties = null;
  	MANUAL("Attempting to make a back button. If an error is thrown, this test passes.");
  	try {
  	    theButton = opera.contexts.toolbar.createItem(ToolbarUIItemProperties);
  	    opera.contexts.toolbar.addItem(theButton);
  	} catch (e) {
  	    PASS("An error was thrown: " + e);
  	}
      }, false);
  });