| <html xmlns='http://www.w3.org/1999/xhtml'> |
| <head> |
| <title>msup javascript base change test</title> |
| </head> |
| <body> |
| <p> |
| <math xmlns='http://www.w3.org/1998/Math/MathML'> |
| <msup id="sup"><mi>x</mi><mn>1</mn></msup> |
| </math> |
| </p> |
| <script type='text/javascript'> |
| var msup = document.getElementById("sup"); |
| msup.removeChild(msup.firstChild); |
| var base = document.createElementNS("http://www.w3.org/1998/Math/MathML","mi"); |
| base.appendChild(document.createTextNode("y")); |
| msup.insertBefore(base,msup.firstChild); |
| </script> |
| </body> |
| </html> |
