Change focus.Verify to focus.Exist and optimize logic.

src/contentscripts.js

@@ -68,7 +68,7 @@ function focuseMode() {
     target = selector( storage.current.site.include );
 
     // uniqueness verification
-    if ( !focus.Verify() ) return;
+    if ( focus.Exist() ) return;
 
     // get tag from chrome storage
     if ( target ) $focus = $( "body" ).find( target );

src/focus/focus.js

@@ -87,12 +87,12 @@ var fcontrol = require( "controlbar" ),
     /*
         Verify ks-simpread-focus tag exit
     */
-    Focus.prototype.Verify = function() {
+    Focus.prototype.Exist = function() {
         if ( $( "body" ).find( "." + focuscls ).length > 0 ) {
             fcontrol.Click( "setting" );
-            return false;
-        } else {
             return true;
+        } else {
+            return false;
         }
     }