[jQuery] Getting Dynamic Values from MySQL data displayed via PHP/HTML

[jQuery] Getting Dynamic Values from MySQL data displayed via PHP/HTML


I have multiple rows of data in an HTML table. E.g., financial
transactions. In each row I have an HTML dropdown SELECT with options
(user will select transaction tag). I want the transactionID and
selected tagID to pass to an onchange event for that unique row.
The transactionID comes through for the unique row of data, but I
can't get the respective tagID to come through. Any ideas? Thanks.
$(".selectList").change(function(){
            var formvalue = this.id;
            var tagid = $(".selectList").val();
            $.ajax({
                 type: "POST",
                 url: "tag_test/index.php",
                 data: "trans_id=" + formvalue + "&tag_id=" + tagid,
                 success: function(){
                    $("#resultTable").before("<p class='new'>Added: <i>" + formvalue
+ tagid +"</i>");
                    $(".selectList").val("");
                }
            });
        });
<select name="tag" class="selectList" id="<?php echo $transactions[$i]
['trans_id']; ?>">
                     <option id="opt_tag" label="None" value="0">None</
option>
                     <?php    for($j=0; $j<count($tags); $j++){
                                 // Current tag is "selected" in <option> tag
                                            $transTag = getTransactionTag($transactions[$i]
['trans_id']);
                                            if($transTag['tag_id'] == $tags[$j]['tag_id'])
                                                $selected = "SELECTED";
                                            else
                                                $selected = "";
                                ?>
                     <option class="option" id="opt_tag" label="<?php echo
$tags[$j]['tag_name']; ?>" value="<?php echo $tags[$j]['tag_id']; ?>"
<?php echo $selected; ?>><?php echo $tags[$j]['tag_name']; ?></option>
                            <?php } ?>
                            </select>