"Hermes is the great messenger of the gods in Greek mythology and a guide to the Underworld"

<script type="text/javascript" src="/path/to/your/js/libs/Hermes.js"></script>

Hermes.logger.addMessage( new Hermes.message( Hermes.level.DEBUG, "Category", "Message", "", "" ) );

Hermes.logger.log();

Hermes.logger.forceLog();

var NewError = function(sFilenameUrl, nLineNumber)
{
	Hermes.message.apply(this, [Level.INFO, 'New Error or message', 'The error or message', sFilenameUrl, nLineNumber, sDateFormat]);
};
NewError.prototype = new Hermes.message();

var NewLayout = function()
{
	Hermes.layout.apply(this, arguments);
};
NewLayout.prototype = new Hermes.layout();
NewLayout.prototype.format = function(oMessage)
{
	//Your implementation must be here
};

var NewAppender = function(oLevel, sCategory, sMessage, sFilenameUrl, nLineNumber, sDateFormat)
{
	Hermes.appender.apply(this, arguments);
	this.oLayout = new NewLayout();
};
NewAppender.prototype = new Hermes.appender();
NewAppender.prototype.log = function(oError)
{
	//Your implementation must be here
};
NewAppender.prototype.clear = function(oError)
{
	//Your implementation must be here
};