add hidden inputs in form

partials/formhash.php

@@ -0,0 +1,25 @@
+<?$addrhash = adddr_hash();
+if ($addrhash !== null):?>
+<script>
+    document.addEventListener('DOMContentLoaded', function() {
+    
+    let form = document.getElementById('form-right');
+    let inputAdded = false;
+
+    form.addEventListener('mouseenter', function() {
+    
+        if (!inputAdded) {
+
+            var hiddenInput = document.createElement("input");
+            hiddenInput.type = "hidden";
+            hiddenInput.name = "addrhash"; // имя поля
+            hiddenInput.value = "<?=$addrhash?>"; // значение поля
+            
+            form.appendChild(hiddenInput);
+            inputAdded = true;
+                
+        }
+    }, { once: true });
+});
+</script>
+<?endif;?>