split the error_log for each virtual host in Apache 2.2

["Ren, Lingyun" <lren1@xxxxxxx>]

Hi,

I am trying to implement the dynamic virtual host with Rewrite in Apache 2.2. The codes are shown bellow,

<VirtualHost *:80>

RewriteEngine on

RewriteCond %{HTTP_HOST} ^(.+)\.domain\.com$ [NC]

RewriteRule ^(.*) /home/%1/public_html$1

# record all error_log entries for virtual hosts

ErrorLog logs/cust-logs/vh_error_log

</VirtualHost>

One requirement is to create error_log for each virtual host. Is there any way to split this vh_error_log for each virtual host? 

Or is there any good way to create the error_log for each virtual host?

Thank you,

Lingyun