--- a/doc/manual.tex	Sun Sep 11 11:37:26 2011 -0400
+++ b/doc/manual.tex	Sun Sep 11 14:14:49 2011 -0400
@@ -1983,6 +1983,13 @@
  \mt{val} \; \mt{onMouseup} : \mt{transaction} \; \mt{unit} \to \mt{transaction} \; \mt{unit}
 \end{array}$$
 
+Versions of standard JavaScript functions are provided that event handlers may call to mask default handling or prevent bubbling of events up to parent DOM nodes, respectively.
+
+$$\begin{array}{l}
+  \mt{val} \; \mt{preventDefault} : \mt{transaction} \; \mt{unit} \\
+  \mt{val} \; \mt{stopPropagation} : \mt{transaction} \; \mt{unit}
+\end{array}$$
+
 \subsubsection{Node IDs}
 
 There is an abstract type of node IDs that may be assigned to \cd{id} attributes of most HTML tags.