function calcHeight()
{
  //find the height of the internal page
  
  var the_height=
    document.getElementById('showpic').contentWindow.
      document.body.scrollHeight;
      
//alert('test');
  //change the height of the iframe
  document.getElementById('showpic').height=
      the_height+20;
}
function calcHeight2()
{
  //find the height of the internal page
  
  var the_height=
    document.getElementById('mediaframe').contentWindow.
      document.body.scrollHeight;
      
//alert(the_height);
  //change the height of the iframe
  document.getElementById('mediaframe').height=
      the_height+20;
}