538207-1.xhtml (392B)
1 <html xmlns="http://www.w3.org/1999/xhtml" xmlns:m="http://www.w3.org/1998/Math/MathML"> 2 <head> 3 <script> 4 5 function boom() 6 { 7 document.getElementById("iframe").appendChild(document.createElement("span")); 8 document.getElementById("mrow").appendChild(document.createElement("span")); 9 } 10 11 </script> 12 </head> 13 <body onload="boom();"><m:mrow id="mrow"><iframe id="iframe"/></m:mrow></body> 14 </html>