var win = new Window("dialog"); // Build a dialog
/**
 * First argument: the UI resource
 * Second: the size. If it is undefined it will be calculated
 * by the size of the text
 * Third: the text that appears on the button
 */
win.button = win.add("button", undefined, "Button");
/**
 * now add the event listener to the action 'click' and pass 'k'
 * as the pressed keys
 */
win.button.addEventListener("click", function (k) {
	if (k.shiftKey) {
		alert("foo"); // shift is clicked
	} else {
		alert("bah"); // now its not
	}
});
win.show(); // show the dialog