scrollableElement.js

scrollableElement.js

// http://www.learningjquery.com/2007/10/improved-animated-scrolling-script-for-same-page-links

function scrollableElement(els) {
  for(var i = 0, len = arguments.length; i < len; i++) {
    var el = arguments[i],
        $scrollElement = $(el);
    if($scrollElement.scrollTop() > 0) {
      return el;
    } else {
      $scrollElement.scrollTop(1);
      var isScrollable = $scrollElement.scrollTop() > 0;
      $scrollElement.scrollTop(0);
      if(isScrollable) {
        return el;
      }
    }
  }

  return false;
}