From c2ab30b87e7f9aa856e9d7313183f462ba0fec0b Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Wed, 27 Feb 2013 16:55:14 -0500
Subject: replace classList.toggle( ..., force ) as it's broken in ff

---
 js/reveal.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'js/reveal.js')

diff --git a/js/reveal.js b/js/reveal.js
index a67be11..b218449 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -354,8 +354,19 @@ var Reveal = (function(){
 		dom.controls.style.display = ( config.controls && dom.controls ) ? 'block' : 'none';
 		dom.progress.style.display = ( config.progress && dom.progress ) ? 'block' : 'none';
 
-		dom.wrapper.classList.toggle( 'rtl', config.rtl );
-		dom.wrapper.classList.toggle( 'center', config.center );
+		if( config.rtl ) {
+			dom.wrapper.classList.add( 'rtl' );
+		}
+		else {
+			dom.wrapper.classList.remove( 'rtl' );
+		}
+
+		if( config.center ) {
+			dom.wrapper.classList.add( 'center' );
+		}
+		else {
+			dom.wrapper.classList.remove( 'center' );
+		}
 
 		if( config.mouseWheel ) {
 			document.addEventListener( 'DOMMouseScroll', onDocumentMouseScroll, false ); // FF
-- 
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