making iframe fit the content size
var frame = document.getElementById("Iframe");
// Adjusting the iframe height onload event
frame.onload = function()
// function execute while load the iframe
{
// set the height of the iframe as
// the height of the iframe content
frame.style.height =
frame.contentWindow.document.body.scrollHeight + 'px';
// set the width of the iframe as the
// width of the iframe content
frame.style.width =
frame.contentWindow.document.body.scrollWidth+'px';