1<html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait"> 2<head> 3<script> 4 5function boom() 6{ 7 var tr2 = document.getElementById('tr2'); 8 var newTD = document.createElement('td'); 9 newTD.setAttribute('colspan', 2); 10 newTD.appendChild(document.createTextNode('x')); 11 tr2.insertBefore(newTD, document.getElementById('b')); 12 13 document.getElementById('a').setAttribute('colspan', 1); 14 document.getElementById('b').setAttribute('colspan', 3); 15 16 document.documentElement.removeAttribute("class"); 17} 18 19</script> 20</head> 21 22<body onload="setTimeout(boom, 250);"> 23 24<table style="border-collapse: collapse;" border="1"> 25 <tbody> 26 <tr> 27 <td id="a" colspan="3">A</td> 28 </tr> 29 <tr id="tr2"> 30 <td id="b">B</td> 31 </tr> 32 <tr> 33 <td>C</td> 34 </tr> 35 </tbody> 36</table> 37 38</body> 39</html> 40