btn1.addEventListener(MouseEvent.CLICK, myLink("http://www.MacEvellyIsAwesome.com/"));
btn2.addEventListener(MouseEvent.CLICK, myLink("http://www.NoReallyHeIs.com/"));
btn3.addEventListener(MouseEvent.CLICK, myLink("http://www.OkMaybeJustCool/"));


function myLink(link:String):Function {
	var myLinkReturn:Function = function(evt:MouseEvent){
		navigateToURL(new URLRequest(link), "_self")
	}
	return myLinkReturn
}

Simplifies a button to use only one function for URL navigation.

Reusable URL function

url

ActionScript 3