Switched the only !! we had to Boolean.

hzr · hzr · commit d2d4955c5e06 · 2012-08-23T12:12:37.000+02:00
diff --git a/src/ui-scripts/overlay.js b/src/ui-scripts/overlay.js
@@ -18,7 +18,7 @@ var Overlay = function()
 
   this.__defineGetter__("is_visible", function()
   {
-    return !!(this.element && this.element.parentNode);
+    return Boolean(this.element && this.element.parentNode);
   });
 
   this.show = function(id)

Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,7 @@ var Overlay = function()`
`18`	`18`
`19`	`19`	`this.__defineGetter__("is_visible", function()`
`20`	`20`	`{`
`21`		`- return !!(this.element && this.element.parentNode);`
	`21`	`+ return Boolean(this.element && this.element.parentNode);`
`22`	`22`	`});`
`23`	`23`
`24`	`24`	`this.show = function(id)`