diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 74a5b87..e5a1fae 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1516,6 +1516,20 @@
 	// --------------------------------------------------------------------
 
 	/**
+	 * Date should be lesser than $before_date
+	 *
+	 * @param	string
+	 * @param	string
+	 * @return	bool
+	 */
+	public function before_date($date, $before_date)
+	{
+		return (strtotime($date)!==FALSE && strtotime($before_date)!==FALSE) ? (strtotime($date) < strtotime($before_date)) : FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Is a Natural number  (0,1,2,3, etc.)
 	 *
 	 * @param	string