<?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%" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" onload="myfunc()"> <script> function myfunc() { var meta = document.createElementNS("http://www.w3.org/2000/svg", "metadata"); if([meta] == "[object SVGMetadataElement]") { document.getElementById("rect").setAttributeNS(null, "display", "visible");} } </script> <rect id="rect" width="100" height="100" fill="green" display="none"/> </svg>