<!--
function getCSS()
{
datetoday = new Date();
timenow=datetoday.getTime();
datetoday.setTime(timenow);
thehour = datetoday.getHours();
if (thehour >= 18) 
display = "change_night.css";
else if (thehour >= 6) 
display = "change_day.css";
else if (thehour >= 0) 
display = "change_night.css";
else
display = "change_day.css";
var css = '<';  css+='link rel="stylesheet" href=' + display + ' \/';  css+='>';
document.write(css);
// -->
}