title: Javascript Dialog box w/ Multiple Buttons
body: <p>Is there a type of Javascript dialog box (similar to alert) that offers customizable, multiple buttons (besides "OK") and will return some sort of indication of which button was clicked? I am <em>not</em> looking for a JQuery or third-party dialog/modal box, I'm just wondering if there's something already built into Javascript. As far as I've researched, Javascript only offers alert(), confirm(), and prompt().</p>
  
  <p>Thanks!</p>