function resize_iframe() {
  var width = document.getElementById("page").scrollWidth; 
  var height = document.getElementById("page").scrollHeight;
  if (document.body && document.body.scrollWidth)
    width = document.body.scrollWidth;
  if (document.body && document.body.scrollHeight)
    height = document.body.scrollHeight;

  var iframe = parent.document.getElementById("blog_iframe");
  iframe.width = width;
  iframe.height = height;
  iframe.scrolling = "no";
}