function attached with a button not working after changing its id in ajax success callback

function attached with a button not working after changing its id in ajax success callback

When I click the button its id, name and val attribute change successfully in ajax success. But if If I click it again the old function attached to the previous id is called not the one attached to the new id. I checked other posts but they did not worked for me either.

  1.     <input type="submit" name="textareaInsert" id="textareaInsert" class="textareaInsert" value="Insert data">


        //script
        $(document).ready(function() {
            graph_post_data();
            graph_update_data();
        });
        
        function graph_post_data() {
            $('#textareaInsert').on("click", function() {
                var poll_id = $('#poll_id').val();
                var graph_data = $('#graphPost').val();
                var ownerid = $('#ownerid').val();
                var ownername = $('#ownername').val();
                var insert = 'insert';
        
                if(ownerid != null || graph_data != '') {
                    $.ajax({
                        type:"post",
                        url:"reg2.php",
                        data: {insert:insert, poll_id:poll_id, graph_data:graph_data, ownerid:ownerid, ownername:ownername},
                        success: function() {
                             $('#textareaInsert').attr("id", "textareaUpdate").attr("name","textareaUpdate").val("Update");
                     }
                    }).error(
                        function() {
                            console.log("Error in inserting graph data")
                        }
                    ).success(
                        function(data) {
                            var Poll_insert_data = jQuery.parseJSON(data);
                            $('#poll_author').text(Poll_insert_data.data.publisherName);
                            $('#owner_input_data').append(Poll_insert_data.data.data);
                        }
                    );
                } else {
                    alert('Please write something first.');
                }
            });
        }
        
        
        function graph_update_data() {
            $('#textareaUpdate').on("click", function() {
        
                 var poll_id = $('#poll_id').val();
                 var graph_data = $('#graphPost').val();
                 var ownerid = $('#ownerid').val();
                 var ownername = $('#ownername').val();
                 var update = 'update';
        
                 if(ownerid != null || graph_data != '') {
                 $.ajax({
                 type:"post",
                 url:"reg2.php",
                 data: {update:update, poll_id:poll_id, graph_data:graph_data, ownerid:ownerid, ownername:ownername},
                 }).error(
                 function() {
                 console.log("Error in updating graph page data")
                 }
                 )
                 .success(
                 function(data) {
        
                 var Poll_insert_data = jQuery.parseJSON(data);
                 $('#poll_author').text(Poll_insert_data.data.publisherName);
                 $('#owner_input_data').text("").append(Poll_insert_data.data.data);
                 
                 }
                 );
                 } else {
                 alert('Please write something first.');
                 }
            });
        }

When I click the button first time 'Insert data' successfully changes its attributes to that of "Upload". But when I click "Upload", function graph_post_data() is called instead of graph_update_data(). I'm not getting what's the problem. Please help me figure it out.