function calcHeight()
{
//find the height of the internal page
var the_height=
document.getElementById('iframe_forum').contentWindow.
document.body.scrollHeight;

//change the height of the iframe
document.getElementById('iframe_forum').height=
the_height;
}

function calcHeight2()
{
//find the height of the internal page
var the_height=
document.getElementById('iframe_parts').contentWindow.
document.body.scrollHeight;

//change the height of the iframe
document.getElementById('iframe_parts').height=
the_height;
}