Simple email function question?

1

So I created this simple function


function emailTo(address):Void {
	var address:String;
	getURL("mailto:"+address);
}

Now I know this works


mail_btn.onRelease = function () {
	this.address = "test@domain.com";
	emailTo(this.address);
}

But I want it to be in this format

mail_btn2.onRelease = emailTo("test@domain.com");

But now it opens up my email program as soon as I test the flash file, so not on click

Any ideas??