function HandleKeyDown(theEvent)
	{
		if (typeof theEvent == 'undefined')		// Microsoft
			theKey = window.event.keyCode;
		else									// sonst
        	theKey = theEvent.which;
                 	
        if (theKey == 37)
        {
        	if (thePreviousLink != '')
	        	self.open(thePreviousLink,'_self');
        	return false;
        }	// if
        else if (theKey == 38)
        {
        	if (theIndexLink != '')
	        	self.open(theIndexLink,'_self');
        	return false;
        }	// else if
        else if (theKey == 39)
        {
        	if (theNextLink != '')
	        	self.open(theNextLink,'_self');
        	return false;
        }	// else if
        return true;
        	
	}	// HandleKeyDown

	document.onkeydown = HandleKeyDown;