You need to change all your echo statements in your code to be assigned to $output. Put this at the top of your code:
Then change all echo statements to be assigned to $output. Instead of this:
PHP Code:
echo '<div id="mumbleViewer">';
Do this:
PHP Code:
$output .= '<div id="mumbleViewer">';
Then see if it works.
If you need somebody to actually do the whole thing for you, instead of just help you to do it, then you should be posting in either the Unpaid or Paid Requests forum. This is the Programming help forum where we help you to do it yourself.