function switchCheckAll(){
    var isChecked =document.checkForm.checkAll.checked;
    var elements = document.checkForm.elements;
    var counter = elements.length;
    for(i=0;i<counter;i++){ type="'=" name="checkForm" element="elements[i];" counter="elements.length;" elements="document.checkForm.elements;" checked="false;" i="0;i<counter;i++){">
     <tr>
          <td>
               <input id="checkAll" onclick="switchCheckAll();" type="checkbox" name="checkAll">
          </td>
          <td>
               <input onclick="anyChecked();" type="checkbox" name="productSelected">
          </td>
     </tr>
</form>