From bf3df43621e3977862da0848db648043886c0046 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Wed, 5 Jun 2013 15:22:47 +0200
Subject: [PATCH] Cast to String in WCF.String.*

---
 wcfsetup/install/files/js/WCF.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index bd28005948..cc930ff78b 100755
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -3372,7 +3372,7 @@ WCF.String = {
 	 * @return	string
 	 */
 	escapeHTML: function (string) {
-		return string.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+		return String(string).replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
 	},
 	
 	/**
@@ -3383,7 +3383,7 @@ WCF.String = {
 	 * @return	string
 	 */
 	escapeRegExp: function(string) {
-		return string.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
+		return String(string).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
 	},
 	
 	/**
@@ -3409,7 +3409,7 @@ WCF.String = {
 	 * @return	string
 	 */
 	lcfirst: function(string) {
-		return string.substring(0, 1).toLowerCase() + string.substring(1);
+		return String(string).substring(0, 1).toLowerCase() + string.substring(1);
 	},
 	
 	/**
@@ -3419,7 +3419,7 @@ WCF.String = {
 	 * @return	string
 	 */
 	ucfirst: function(string) {
-		return string.substring(0, 1).toUpperCase() + string.substring(1);
+		return String(string).substring(0, 1).toUpperCase() + string.substring(1);
 	}
 };
 
-- 
2.20.1