diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 91312e4..c22bebd 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -67,6 +67,7 @@
 		<ul>
 			<li class="reactor">Callback validation rules can now accept parameters like any other validation rule.</li>
 			<li class="reactor">Ability to log certain error types, not all under a threshold.</li>
+			<li class="reactor">Added html_escape() to the <a href="general/common_functions.html">Common functions<a> to escape HTML output for preventing XSS easliy.</li>
 		</ul>
 	</li>
 	<li>Helpers
diff --git a/user_guide/general/common_functions.html b/user_guide/general/common_functions.html
index 6545775..7cff632 100644
--- a/user_guide/general/common_functions.html
+++ b/user_guide/general/common_functions.html
@@ -104,6 +104,8 @@
 <p>This function prevents inserting null characters between ascii characters, like Java\0script.</p>
 
 
+<h2>html_escape(<var>$mixed</var>)</h2>
+<p>This function provides short cut for htmlspecialchars() function. It accepts string and array. To prevent Cross Site Scripting (XSS), it is very useful.</p>
 
 </div>