diff --git a/js/ajax_modal.js b/js/ajax_modal.js
index 81a9824f..af12db20 100644
--- a/js/ajax_modal.js
+++ b/js/ajax_modal.js
@@ -1,61 +1,114 @@
-// Ajax Modal Load Script
-$(document).on('click', '.ajax-modal', function (e) {
-  e.preventDefault();
-
-  const $trigger  = $(this);
-
-  // Prefer data-modal-url, fallback to href
-  let modalUrl = $trigger.data('modal-url') || $trigger.attr('href') || '#';
-  const modalSize = $trigger.data('modal-size') || 'md';
-  const modalId   = 'ajaxModal_' + Date.now();
-
-  // If no usable URL, bail
-  if (!modalUrl || modalUrl === '#') {
-    console.warn('ajax-modal: No modal URL found on trigger:', this);
-    return;
-  }
-
-  // Show loading spinner while fetching content
-  const loadingSpinner = `
-    <div id="modal-loading-spinner" class="text-center p-5">
-      <i class="fas fa-spinner fa-spin fa-2x text-muted"></i>
-    </div>`;
-  $('.content-wrapper').append(loadingSpinner);
-
-  // Make AJAX request
-  $.ajax({
-    url: modalUrl,
-    method: 'GET',
-    dataType: 'json',
-    success: function (response) {
-      $('#modal-loading-spinner').remove();
-
-      if (response.error) {
-        alert(response.error);
-        return;
-      }
-
-      const modalHtml = `
-        <div class="modal fade" id="${modalId}" tabindex="-1">
-          <div class="modal-dialog modal-${modalSize}">
-            <div class="modal-content border-dark">
-              ${response.content}
-            </div>
-          </div>
-        </div>`;
-
-      $('.content-wrapper').append(modalHtml);
-      const $modal = $('#' + modalId);
-      $modal.modal('show');
-
-      $modal.on('hidden.bs.modal', function () {
-        $(this).remove();
-      });
-    },
-    error: function (xhr, status, error) {
-      $('#modal-loading-spinner').remove();
-      alert('Error loading modal content. Please try again.');
-      console.error('Modal AJAX Error:', status, error);
+// Ajax Modal Load Script (deduped + locked)
+function hashKey(str) {
+    let h = 0;
+    for (let i = 0; i < str.length; i++) {
+        h = ((h << 5) - h + str.charCodeAt(i)) | 0;
     }
-  });
+    return Math.abs(h).toString(36);
+}
+
+$(document).on('click', '.ajax-modal', function (e) {
+    e.preventDefault();
+
+    const $trigger = $(this);
+
+    // prevent spam clicks on same trigger
+    if ($trigger.data('ajaxModalLoading')) {
+        return;
+    }
+
+    $trigger
+        .data('ajaxModalLoading', true)
+        .prop('disabled', true)
+        .addClass('disabled');
+
+    // Prefer data-modal-url, fallback to href
+    const modalUrl = $trigger.data('modal-url') || $trigger.attr('href') || '#';
+    const modalSize = $trigger.data('modal-size') || 'md';
+
+    if (!modalUrl || modalUrl === '#') {
+        console.warn('ajax-modal: No modal URL found on trigger:', this);
+
+        $trigger
+            .data('ajaxModalLoading', false)
+            .prop('disabled', false)
+            .removeClass('disabled');
+
+        return;
+    }
+
+    // stable IDs based on URL (prevents duplicates)
+    const key = hashKey(String(modalUrl));
+    const modalId = 'ajaxModal_' + key;
+    const spinnerId = 'modal-loading-spinner-' + key;
+
+    // if modal already exists, just show it
+    const $existing = $('#' + modalId);
+    if ($existing.length) {
+        $existing.modal('show');
+
+        $trigger
+            .data('ajaxModalLoading', false)
+            .prop('disabled', false)
+            .removeClass('disabled');
+
+        return;
+    }
+
+    // Show loading spinner while fetching content (deduped)
+    $('#' + spinnerId).remove();
+    $('.content-wrapper').append(`
+        <div id="${spinnerId}" class="text-center p-5">
+            <i class="fas fa-spinner fa-spin fa-2x text-muted"></i>
+        </div>
+    `);
+
+    $.ajax({
+        url: modalUrl,
+        method: 'GET',
+        dataType: 'json'
+    })
+    .done(function (response) {
+        $('#' + spinnerId).remove();
+
+        if (response && response.error) {
+            alert(response.error);
+            return;
+        }
+
+        // guard against race: if another request already created it
+        if ($('#' + modalId).length) {
+            $('#' + modalId).modal('show');
+            return;
+        }
+
+        const modalHtml = `
+            <div class="modal fade" id="${modalId}" tabindex="-1">
+                <div class="modal-dialog modal-${modalSize}">
+                    <div class="modal-content border-dark">
+                        ${response.content || ''}
+                    </div>
+                </div>
+            </div>`;
+
+        $('.content-wrapper').append(modalHtml);
+
+        const $modal = $('#' + modalId);
+        $modal.modal('show');
+
+        $modal.on('hidden.bs.modal', function () {
+            $(this).remove();
+        });
+    })
+    .fail(function (xhr, status, error) {
+        $('#' + spinnerId).remove();
+        alert('Error loading modal content. Please try again.');
+        console.error('Modal AJAX Error:', status, error);
+    })
+    .always(function () {
+        $trigger
+            .data('ajaxModalLoading', false)
+            .prop('disabled', false)
+            .removeClass('disabled');
+    });
 });