1 <html xmlns=
"http://www.w3.org/1999/xhtml">
6 document
.getElementById("c").setAttribute('span', 2);
7 document
.getElementById("cg").setAttribute('span', 2);
11 <body onload=
"boom();">
12 <table><colgroup id=
"cg"><col span=
"3" id=
"c" /></colgroup></table>