var NightMode = {
	ShowInfo:function(){$('nmdiv_why').hide();$('nmdiv_info').show();},
	HideInfo:function(key)
	{
		$('nmdiv_info').hide();$('nmdiv_why').show();
		new Ajax.Request($F('nmajaxurl'),{method:'post',parameters:{msgkey:key}});
	}
}