function resize() {
  //find the height of the internal page
  //var the_height=document.getElementById('iframe').contentWindow.document.body.scrollHeight;
  //change the height of the iframe
  //document.getElementById('iframe').height= the_height+5;
  document.getElementById('iframe').height = parseInt("50");
  document.getElementById('iframe').height = parseInt(document.getElementById('iframe').contentWindow.document.body.scrollHeight);
  document.getElementById('iframe').height = parseInt(document.getElementById('iframe').height) + parseInt("5");
}