1 <html xmlns=
"http://www.w3.org/1999/xhtml" xmlns:
math=
"http://www.w3.org/1998/Math/MathML">
6 var span
= document
.getElementById("s");
7 var newSpan
= document
.createElementNS("http://www.w3.org/1999/xhtml", "span");
8 span
.appendChild(newSpan
);
12 <body onload=
"boom();">
13 <math:math><span id=
"s"><div/></span></math:math>