394150-1.xhtml (625B)
1 <html xmlns="http://www.w3.org/1999/xhtml" xmlns:math="http://www.w3.org/1998/Math/MathML"> 2 <head> 3 <script> 4 5 function boom() 6 { 7 var ms = document.createElementNS("http://www.w3.org/1998/Math/MathML", "ms"); 8 var textNode = document.getElementById("emptyset").firstChild; 9 var mrow = document.getElementById("mrow"); 10 11 ms.appendChild(textNode); // *move* the text node from one place to another! 12 mrow.appendChild(ms); 13 } 14 15 </script> 16 </head> 17 18 <body onload="boom();"> 19 20 <math xmlns="http://www.w3.org/1998/Math/MathML"> 21 <merror><emptyset id="emptyset"> 22 <mrow id="mrow"></mrow></emptyset></merror> 23 </math> 24 25 </body> 26 27 </html>