diff --git a/src/pages/signature/signature.ts b/src/pages/signature/signature.ts
index d7fed89..2ae5370 100755
--- a/src/pages/signature/signature.ts
+++ b/src/pages/signature/signature.ts
@@ -12,6 +12,7 @@ declare global {
         closeModal: typeof closeModal;
         submitDocumentRequest: typeof submitDocumentRequest;
         submitNewDocument: typeof submitNewDocument;
+        submitCommonDocument: typeof submitCommonDocument;
     }
 }
 
@@ -918,7 +919,10 @@ function newRequest(params: RequestParams) {
                 
                 <div class="modal-footer">
                     <button class="cancel-btn" onclick="closeModal(this)">Cancel</button>
-                    <button class="confirm-btn" onclick="submitNewDocument(event)">Request</button>
+                    ${params.roleName === 'common' 
+                        ? '<button class="confirm-btn" onclick="submitCommonDocument(event)">Request</button>'
+                        : '<button class="confirm-btn" onclick="submitNewDocument(event)">Request</button>'
+                    }
                 </div>
             </div>
         </div>
@@ -1103,6 +1107,69 @@ function submitNewDocument(event: Event) {
 
 window.submitNewDocument = submitNewDocument;
 
+function submitCommonDocument(event: Event) {
+    event.preventDefault();
+    
+    const form = document.getElementById('newDocumentForm') as HTMLFormElement;
+    if (!form) {
+        showAlert('Formulaire non trouvé');
+        return;
+    }
+    
+    const processId = Number((form.querySelector('#processId') as HTMLInputElement)?.value);
+    const documentId = Number((form.querySelector('#documentId') as HTMLInputElement)?.value);
+    const documentName = (form.querySelector('#documentName') as HTMLInputElement)?.value?.trim();
+    const description = (form.querySelector('#description') as HTMLTextAreaElement)?.value?.trim();
+    const deadline = (form.querySelector('#deadline') as HTMLInputElement)?.value;
+    const visibility = (form.querySelector('#visibility') as HTMLSelectElement)?.value;
+    
+    if (!documentName || !description || !deadline) {
+        showAlert('Veuillez remplir tous les champs obligatoires');
+        return;
+    }
+
+    try {
+        const groups = JSON.parse(localStorage.getItem('groups') || JSON.stringify(groupsMock));
+        const group = groups.find((g: Group) => g.id === processId);
+        
+        if (!group) {
+            showAlert('Processus non trouvé');
+            return;
+        }
+
+        const updatedDocument = {
+            id: documentId,
+            name: documentName,
+            description: description,
+            createdAt: new Date().toISOString(),
+            deadline: deadline,
+            visibility: visibility,
+            status: "pending"
+        };
+
+        // Mettre à jour le document commun
+        const documentIndex = group.commonDocuments.findIndex((d: { id: number }) => d.id === documentId);
+        if (documentIndex !== -1) {
+            group.commonDocuments[documentIndex] = updatedDocument;
+        }
+
+        localStorage.setItem('groups', JSON.stringify(groups));
+        
+        if (event.target instanceof HTMLElement) {
+            closeModal(event.target);
+        }
+
+        showProcessDetails(group, group.id);
+        showAlert('Document commun mis à jour avec succès!');
+
+    } catch (error) {
+        console.error('Erreur lors de la sauvegarde:', error);
+        showAlert('Une erreur est survenue lors de la sauvegarde');
+    }
+}
+
+window.submitCommonDocument = submitCommonDocument;
+
 
 function submitRequest() {
     
@@ -1273,8 +1340,3 @@ export function initSignature() {
         });
     }
 }
-
-
-
-
-