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-rw-r--r--lib/js/urweb.js8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index ebe192ca..1a275451 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -1389,6 +1389,14 @@ function addOnChange(x, f) {
x.onchange = function() { old(); f(); };
}
+function addOnInput(x, f) {
+ var old = x.oninput;
+ if (old == null)
+ x.oninput = f;
+ else
+ x.oninput = function() { old(); f(); };
+}
+
function addOnKeyUp(x, f) {
var old = x.onkeyup;
if (old == null)