Adding Namespace with php

Hi all,

I'm trying to use php to add a VML namespace to a page on my pages, but only for IE

I have a variable ($browser) that denotes the browser, basically my code consists of:



if($browser=="MSIE")
{
//add VML namespace
}
else
{
//link SVG file
}


can thins be done using somthing silimar to:


header('Content-Type: image/svg+xml');


(which is used in an external SVG file)

Also - any tips you mgiht have on dynamic vector graphics would be very well recieved! (if you hadn't guessed thats what I'm attempting already :p)

Thanks in advance
Mike