var td = document.createElement('td');
 td.addClassName('headcol');

 td.innerHTML += '<div class="sortTablefilter">  <input id="0_sortedTable_filter" type="text" onkeypress="if (event.which == 13 || event.keyCode == 13) {eF_js_filterData(0); return false;}" value="Фильтр..." onclick="if (this.value.match("Фильтр...")) this.value = "";">  </div>';

 test =  $('table').getElementsByClassName('defaultRowHeight');

 test.appendChild(td);