Formatting XML query

Using a mixture of PHP & Javascript, Is there any examples where I can format XML?

Basically I am getting an XML Query as 1 long line, eg:

<?xml version="1.0" ?><message id="list"><id>547</id><locationid>6877</locationid></message>

So i want to take this, and then have it outputted as :
<?xml version="1.0" ?>
<message id="list">
<id>547</id>
<locationid>6877</locationid>
</message>


(with tabs, as the post gets rid of them)
It is going to be displayed in IE, i have tried using Iframes and using IE inbuild XML parser, but it isn't working. So I just want to use a function that i can just output the formatted XML in a <PRE> text

Thanks in advance.

Well i found a solution...

just create a php file which will just display the XML

in that file
header( "Content-type: text/xml" );

then display my XML code

then in IE create IFRAMES and it all works