<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
function boom()
{
  var col1 = document.getElementById("col1");
  var parent = col1.parentNode;
  var next = col1.nextSibling;
  
  parent.removeChild(col1);
  reflow();
  parent.insertBefore(col1, next);
  reflow();  
  col1.removeAttribute("width");
}

function reflow() { document.documentElement.offsetHeight; }

</script>
</head>
<body onload="boom();">
<table border="2" id="table">
<col width=100 id="col1">
<col width=200 id="col2">
<tr>
<td>100?</td><td>200</td>
</tr>
</table>
</body>
</html>