def reg(request):
    args= {}
    args.update(csrf(request))
    args['form']= UserCreationForm()
    if request.POST:
        newuser_form= UserCreationForm(request.POST)
        if newuser_form.is_valid():
            newuser_form.save()
            newuser= auth.authenticate(username= newuser_form.cleaned_data['username'], password=newuser_form.cleaned_data['password'] )
            auth.login(request,newuser)
            return redirect('/')
        else:
            args['form']= newuser_form
    else:
        return render_to_response('reg.html', args)