var oldTable = document.getElementById('myTable');
var oldTableBody = oldTable.tBodies[0];
var oldTableRows = oldTableBody.rows;
var newTableArray = new Array();
for (var i = 0, rowCount = oldTableRows.length; i < rowCount; i++) {
    newTableArray.push(oldTableRows[i]);
}
newTableArray.sort(chooseSort);
var newFragment = document.createDocumentFragment();
for (var i = 0, rowCount = newTableArray.length; i < rowCount; i++) {
    newFragment.appendChild(newTableArray[i]);
}
oldTableBody.appendChild(newFragment);