diff --git a/user_guide/nav/moo.fx.pack.js b/user_guide/nav/moo.fx.pack.js
index 574f27c..e2ce399 100755
--- a/user_guide/nav/moo.fx.pack.js
+++ b/user_guide/nav/moo.fx.pack.js
@@ -113,7 +113,7 @@
 				this.el[i].fs.toggle(mode);
 				setTimeout(function(){el.fs.toggle(mode);}.bind(el), delay);
 			}
-			
+
 		}
 	},
 
@@ -170,13 +170,13 @@
 		this.fx = new fx.Height(this.el, this.options);
 		this.prefix = 'height';
 	},
-	
+
 	toggle: function(){
 		if (this.el.offsetHeight == 0) this.setCookie(this.el.scrollHeight);
 		else this.setCookie(0);
 		this.fx.toggle();
 	},
-	
+
 	resize: function(to){
 		this.setCookie(this.el.offsetHeight+to);
 		this.fx.custom(this.el.offsetHeight,this.el.offsetHeight+to);