Custom Laravel 4 asset function for static subdomain.

gistfile1.php

<?php

function asset($path, $secure = null)
{
	
	if (app('url')->isValidUrl($path)) return $path;

	if (is_null($secure))
	{
		$scheme = app('url')->getRequest()->getScheme($secure) . '://';
	}
	else
	{
		$scheme = $secure ? 'https://' : 'http://';
	}
	
	return $scheme . 'assets.' . app('url')->getRequest()->getHost() . '/' . $path;
				
}