diff --git a/mozilla/editor/ui/dialogs/content/EdDialogCommon.js b/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
index 37805d797ed..570315ddb3b 100644
--- a/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
+++ b/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
@@ -309,28 +309,17 @@ function SetPixelOrPercentByID(elementID, percentString)
   }
 }
 
-// force integer by petejc (pete@postpagan.com)
-function forceInteger(id)
+// forceInteger by petejc (pete@postpagan.com)
+function forceInteger(elementID)
 {
-var isInteger = true;
-
-  with (document)
-  {
-    var stringIn = getElementById(id).value;
-    var pat = /\D/g;
-    var check = stringIn.match(pat);
-    if (check)
-    {
-      isInteger = false;
-    }
-    else
-    {
-      isInteger = true;
-    }
-  }
-  dump("integer = "+isInteger+"\n\n");
-
-return isInteger;
+  editfield = document.getElementById( elementID );
+  if ( !editfield )
+    return;
+  
+  var stringIn = editfield.value;
+  var pat = /\D/g;
+  
+  editfield.value = stringIn.replace(pat, "");
 }
 
 // All dialogs share this simple method