Mobile theme without plugin

Hello,

I want to add mobile version for my themes but without any plugin.

I have tried to do, but i fail to change the hole theme.

It change the theme path for stylesheet and javascript, but not for theme files like page.php or single.php …

How can i change to take the hole theme files from custom directory?

Here is how i tried to do the change.

if (is_mobile_browser()) {
		add_filter('template', 'mobile_template');
		add_filter('option_template', 'mobile_template');
		add_filter('option_stylesheet', 'mobile_template');
	}

mobile_template return the new theme directory name.

Thank you.