--- a/lib/js/urweb.js	Fri Jul 08 13:33:26 2011 -0400
+++ b/lib/js/urweb.js	Fri Jul 15 10:02:54 2011 -0400
@@ -277,11 +277,13 @@
     return {data : v, dyns : null};
 }
 function sv(s, v) {
-    s.data = v;
+    if (s.data != v) {
+        s.data = v;
 
-    for (var ls = s.dyns; ls; ls = ls.next)
-        if (!ls.dead)
-            populate(ls.data);
+        for (var ls = s.dyns; ls; ls = ls.next)
+            if (!ls.dead)
+                populate(ls.data);
+    }
 }
 function sg(s) {
     return s.data;
@@ -491,7 +493,7 @@
     var x = input(document.createElement("input"), s,
                   function(x) { return function(v) { if (x.value != v) x.value = v; }; }, null, name);
     x.value = s.data;
-    x.onkeyup = function() { sv(s, x.value) };
+    x.onkeyup = x.oninput = x.onchange = x.onpropertychange = function() { sv(s, x.value) };
 
     return x;
 }
@@ -545,7 +547,7 @@
     var x = input(document.createElement("textarea"), s,
                   function(x) { return function(v) { if (x.innerHTML != v) x.innerHTML = v; }; });
     x.innerHTML = s.data;
-    x.onkeyup = function() { sv(s, x.value) };
+    x.onkeyup = x.oninput = x.onchange = x.onpropertychange = function() { sv(s, x.value) };
 
     return x;
 }