<table class="table" id="productTable">
                          <thead>
                            <tr>
                              <th>Model</th>
                              <th>Retail Price</th>
                              <th>Quantity</th>
                              <th>Total</th>
                              <th>Action</th>
                            </tr>
                          </thead>

                          <tbody>
                            <?php
                            $arrayNumber = 0;
                            for($x = 1; $x < 4; $x++){ ?><!-- for loop start -->
                              <tr id="row<?php echo $x; ?>" class="<?php echo $arrayNumber; ?>">
                                <td>
                                  <div class="form-group">
                                    <select class="form-control" name="po_supplier[]" id="po_supplier<?php echo $x; ?>" onchange="getProductData(<?php echo $x; ?>)">
                                      <option value="">~~SELECT SUPPLIER~~</option>
                                      <?php
                                      $productSql = "SELECT * FROM inventory";
                                      $productData = $link->query($productSql);

                                      while($row = $productData->fetch_array()) {
                                        echo "<option value='".$row['inv_id']."' id='changeProduct".$row['inv_id']."'>".$row['product_description']."</option>";
                                      } // /while

                                      ?>
                                    </select>
                                  </div>
                                </td>
                                <td>
                                  <!--UNIT PRICE-->
                                  <input type="text" name="retail_price[]" id="retail_price<?php echo $x; ?>" autocomplete="off" disabled="true" class="form-control" />
                                  <input type="hidden" name="retailPriceValue[]" id="retailPriceValue<?php echo $x; ?>" autocomplete="off" class="form-control" />
                                </td>
                                <td>
                                  <div class="form-group"><!--QTY-->
                                    <input type="number" name="qty[]" id="qty<?php echo $x; ?>" onkeyup="getTotal(<?php echo $x; ?>)" autocomplete="off" class="form-control" min="1" />
                                  </div>
                                </td>
                                <td>
                                  <!--TOTAL PRICE-->
                                  <input type="text" name="total[]" id="total<?php echo $x; ?>" autocomplete="off" class="form-control" disabled="true" />
                                  <input type="hidden" name="totalValue[]" id="totalValue<?php echo $x; ?>" autocomplete="off" class="form-control" />
                                </td>
                                <td>
                                  <button class="btn btn-default removeProductRowBtn" type="button" id="removeProductRowBtn" onclick="removeProductRow(<?php echo $x; ?>)"><i class="glyphicon glyphicon-trash"></i></button>
                                </td>
                              </tr>

                              <?php $arrayNumber++; } ?> <!-- For Loop End -->
                            </tbody>
                            <tfoot>

                                <button type="button" class="btn btn-default" onclick="addRow()" id="addRowBtn" data-loading-text="Loading..."> <i class="glyphicon glyphicon-plus-sign"></i> Add Row </button>

                              <tr>
                                <td>
                                  <div class="form-group">
                                    <label for="subTotal" class="col-sm-3 control-label">Sub Amount</label>
                                    <div class="col-sm-9">
                                      <input type="text" class="form-control" id="subTotal" name="subTotal" disabled="true" />
                                      <input type="hidden" class="form-control" id="subTotalValue" name="subTotalValue" />
                                    </div>
                                  </div>
                                </td>
                              </tr>
                            </tfoot>
                          </table>