Вы можете обратиться по этой ссылке для удаления столбца http://www.mredkj.com/tutorials/tableaddcolumn.html
function deleteColumn(tblId)
{
var allRows = document.getElementById(tblId).rows;
for (var i=0; i<allRows.length; i++) {
if (allRows[i].cells.length > 1) {
allRows[i].deleteCell(-1);
}
}
}
// 2006-08-21 - Created
// 2006-11-05 - Modified - head and body
function addColumn(tblId)
{
var tblHeadObj = document.getElementById(tblId).tHead;
for (var h=0; h<tblHeadObj.rows.length; h++) {
var newTH = document.createElement('th');
tblHeadObj.rows[h].appendChild(newTH);
newTH.innerHTML = '[th] row:' + h + ', cell: ' + (tblHeadObj.rows[h].cells.length - 1)
}
var tblBodyObj = document.getElementById(tblId).tBodies[0];
for (var i=0; i<tblBodyObj.rows.length; i++) {
var newCell = tblBodyObj.rows[i].insertCell(-1);
newCell.innerHTML = '[td] row:' + i + ', cell: ' + (tblBodyObj.rows[i].cells.length - 1)
}
}
function deleteColumn(tblId)
{
var allRows = document.getElementById(tblId).rows;
for (var i=0; i<allRows.length; i++) {
if (allRows[i].cells.length > 1) {
allRows[i].deleteCell(-1);
}
}
}
<form>
<p>
<input type="button" value="add column" onclick="addColumn('tblSample')" />
<input type="button" value="delete column" onclick="deleteColumn('tblSample')" />
</p>
<table id="tblSample" border="1">
<thead>
<tr>
<th>[th] row:0, cell: 0</th>
<th>[th] row:0, cell: 1</th>
<th>[th] row:0, cell: 2</th>
</tr>
</thead>
<tbody>
<tr>
<td>[td] row:0, cell: 0</td>
<td>[td] row:0, cell: 1</td>
<td>[td] row:0, cell: 2</td>
</tr>
<tr>
<td>[td] row:1, cell: 0</td>
<td>[td] row:1, cell: 1</td>
<td>[td] row:1, cell: 2</td>
</tr>
<tr>
<td>[td] row:2, cell: 0</td>
<td>[td] row:2, cell: 1</td>
<td>[td] row:2, cell: 2</td>
</tr>
</tbody>
</table>
</form>