//array.lastIndexOf()

if (!Array.prototype.lastIndexOf)
{
  Array.prototype.lastIndexOf = function(elt /*, from*/)
  {
    var len = this.length;

    var from = Number(arguments[1]);
    if (isNaN(from))
    {
      from = len - 1;
    }
    else
    {
      from = (from < 0)
           ? Math.ceil(from)
           : Math.floor(from);
      if (from < 0)
        from += len;
      else if (from >= len)
        from = len - 1;
    }

    for (; from > -1; from--)
    {
      if (from in this &&
          this[from] === elt)
        return from;
    }
    return -1;
  };
}

/*Legacy image swap for Series Page

function swap(imgId,eventNum){
	imgType="";
	imgArr = imgId.split("-");
	imgCat = document.getElementById(imgId);
	if (eventNum == 1){imgType = "-dim";}
	imgCat.src = "images/" + imgArr[0] + "-thumb" + imgType + imgArr[1] + ".jpg";	
}
*/