<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Basic//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd">
<svg version="1.1" baseProfile="basic" id="svg-root" width="100%" height="100%" viewBox="0 0 480 360"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     xmlns="http://www.w3.org/2000/svg" onload="mytest()">
    <script>
     	function mytest() {
            var myTref = document.getElementById("tref");
            myTref.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#tref-internal-reference-success");
     	}
    </script>
    <defs>
       <text id="tref-internal-reference-fail">Failure</text>
       <text id="tref-internal-reference-success">Success</text>
    </defs>
    <text x="20" y="20" >
       <tref id="tref" xlink:href="#tref-internal-reference-failure"/>
    </text>
</svg>