Am I in an iFrame? Am I Visible?

iframed.js

var _gaq = _gaq || [];

(function(win, depth){
  var iframe = false;
  if(win){
    if(
        win.location !== win.parent.location ||
        win.self !== win.top ||
        (win.self.frameElement && (win.self.frameElement+"").indexOf("HTMLIFrameElement") > -1)
      ){
      depth = 1 + depth;
      iframe = true;
    }
  }
  if(iframe === true){
    arguments.callee(win.parent, depth);
  }
  else if(depth > 1){
    console.log('I am in an iframe, ' + depth + ' frames deep.');
    // _gaq.push(['_trackEvent', 'iFramed', depth, 'Domain']);
    return;
  }
})(window, 1);


function iframe_depth(win, depth){
  var iframe = false;
  if(win){
    if(
        win.location !== win.parent.location ||
        win.self !== win.top ||
        (win.self.frameElement && (win.self.frameElement+"").indexOf("HTMLIFrameElement") > -1)
      ){
      depth = 1 + depth;
      iframe = true;
    }
  }
  if(iframe === true){
    iframe_depth(win.parent, depth);
  }
  else if(depth > 1){
    console.log('I am in an iframe, ' + depth + ' frames deep.');
    // _gaq.push(['_trackEvent', 'iFramed', depth, 'Domain']);
    return;
  }
}
iframe_depth(window, 1);


(function(el){
  if(!el){
    return;
  }
  var visible = function(element){
    if(element.offsetWidth === 0 || element.offsetHeight === 0){
      return false;
    }
    var height = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight,
        rects = element.getClientRects(),
        on_top = function(r){
      for(var x = Math.floor(r.left), x_max = Math.ceil(r.right); x <= x_max; x++){
        for(var y = Math.floor(r.top), y_max = Math.ceil(r.bottom); y <= y_max; y++){
          if(document.elementFromPoint(x, y) === element){
            return true;
          }
        }
      }
      return false;
    };
    for(var i = 0, l = rects.length; i < l; i++){
      var r = rects[i];
      var in_viewport = r.top > 0 ? r.top <= height : (r.bottom > 0 && r.bottom <= height);
      if(in_viewport && on_top(r)){
        return true;
      }
    }
    return false;
  };
  if(visible(el) === true){
    _gaq.push(['_trackEvent', 'Visible', 'true', 'Domain']);
  }
})(document.getElementById('leaderboard-container'));