How to add a hyperlink to a movie clip button

After you finish the Creating Movie Clip Buttons tutorial you might want to know how to add a hyperlink to it. Just study the last 2 lines of code

this.button_mc3.onRollOver = function() {
button_mc3.gotoAndPlay("_over");
}

this.button_mc3.onRollOut = function() {
button_mc3.gotoAndPlay("_out");
}

button_mc3.onRelease = function() {
button_mc3.getURL(“http://www.beaniebabycastle.com”);
}