Configuring Hibernate logging using Log4j XML config file?

I haven't been able to find any documentation on how to configure Hibernate's logging using the XML style configuration file for Log4j.

Is this even possible or do I have use a properties style configuration file to control Hibernate's logging?

If anyone has any information or links to documentation it would appreciated.

EDIT:
Just to clarify, I am looking for an example of the actual XML syntax to control Hibernate.

EDIT2:
Here is what I have in my XML config file.

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <param name="Threshold" value="info"/>
        <param name="Target" value="System.out"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{ABSOLUTE} [%t] %-5p %c{1} - %m%n"/>
        </layout>
    </appender>
    <appender name="rolling-file" class="org.apache.log4j.RollingFileAppender">
        <param name="file" value="Program-Name.log"/>
        <param name="MaxFileSize" value="1000KB"/>
    <!-- Keep one backup file -->
        <param name="MaxBackupIndex" value="4"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d [%t] %-5p %l - %m%n"/>
        </layout>
    </appender>

    <root>
        <priority value ="debug" />
        <appender-ref ref="console" />
        <appender-ref ref="rolling-file" />
    </root>
</log4j:configuration>

Logging works fine but I am looking for a way to step down and control the hibernate logging in way that separate from my application level logging, as it cu