fix bug #94: Home page first visit -- occasionally throws Cannot read property 'confirm' of undefined
fix bug #94: Home page first visit -- occasionally throws Cannot read property 'confirm' of undefined

PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile,PowerlineApp/powerline-mobile