Hi:
Somebody who can help me with this err message
thanks a lot

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
org.hibernate.HibernateException: Dialect class not found: net.sf.hibernate.dialect.MySQLDialect
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:81)
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:42)
at org.hibernate.cfg.SettingsFactory.determineDialect(SettingsFactory.java:426)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:128)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
at proj.base._BaseRootDAO.initialize(_BaseRootDAO.java:54)
at proj.base._BaseRootDAO.initialize(_BaseRootDAO.java:38)
at proj.dao.RegateDAO.main(RegateDAO.java:19)





this is my programe
package proj.dao;

import proj.base.BaseRegateDAO;
import proj.Regate;


public class RegateDAO extends BaseRegateDAO {
public static void main(String args[])
{try
{
_RootDAO.initialize();

RegateDAO regatedao = new RegateDAO();
Regate regate = new Regate();
regate.setName("LaLa");
regatedao.save(regate);
}
catch(Exception e)
{
e.printStackTrace();
}
}

}

help!

no body answers me?? :(