function getCSS(){
	datetoday = new Date();
  timenow=datetoday.getTime();
  datetoday.setTime(timenow);
  thehour = datetoday.getHours();
  if (thehour > 18)
		display = "/css/css/type2.css";
  else if (thehour > 15)
    display = "/css/css/type4.css";
  else if (thehour > 7)
    display = "/css/css/type1.css";
  else if (thehour > 3)
    display = "/css/css/type5.css";
  else
    display = "/css/css/type3.css";

  var css = '<'; css+='link rel="stylesheet" href=' + display + ' \/'; css+='>';
  document.write(css);
}