--- a/web/data/cubicweb.edition.js	Tue Jan 19 18:22:05 2010 +0100
+++ b/web/data/cubicweb.edition.js	Tue Jan 19 18:26:22 2010 +0100
@@ -414,12 +414,15 @@
 function postForm(bname, bvalue, formid) {
     var form = getNode(formid);
     if (bname) {
-	form.appendChild(INPUT({type: 'hidden', name: bname, value: bvalue}));
+	var child = form.appendChild(INPUT({type: 'hidden', name: bname, value: bvalue}));
     }
     var onsubmit = form.onsubmit;
     if (!onsubmit || (onsubmit && onsubmit())) {
 	form.submit();
     }
+    if (bname) {
+	jQuery(child).remove(); /* cleanup */
+    }
 }