4 <script type=
"text/javascript">
8 var table
= document
.createElement('table');
9 document
.body
.appendChild(table
);
10 var colgroup
= document
.createElement('colgroup');
11 table
.appendChild(colgroup
);
12 var col
= document
.createElement('col');
13 colgroup
.appendChild(col
);
20 <body onload=
"boom();"></body>