<script language="javascript">
var now = new Date();
var hour = now.getHours();
if (hour >= 0 && hour <5){
document.write("<center><img src='1.jpg' width='600' height='399'><center>");
document.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900 >现在是凌晨时间"+hour+"点，祝您好梦</font>");
}
if (hour >= 5 && hour <8){
document.write("<center><img src='2.jpg' width='600' height='399'><center>");
document.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900 >现在是早上时间 "+hour+"点，祝您一天心情愉快</font>");
}
if (hour >= 8 && hour <11){
document.write("<center><img src='3.jpg' width='600' height='399'><center>");
ocument.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900 >现在是上午时间"+hour+"点，您别忘了小憩一会喝口水</font>");
}
if (hour >= 11 && hour <13){
document.write("<center><img src='4.jpg' width='600' height='399'><center>");
document.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900 >现在是中午时间"+hour+"点,记得要多吃饭 </font>");
}
if (hour >= 13 && hour < 17){
document.write("<center><img src='5.jpg' width='600' height='399'><center>");
document.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900 >现在是下午时间"+hour+"点，久坐办公室要适当起身运动一下</font>");
}
if (hour >= 17 && hour < 24){
document.write("<center><img src='6.jpg' width='600' height='399'><center>");
document.write("<p>");
document.write("<font size = 6 face = 黑体 color =#ff9900>现在是晚上时间"+hour+"点，要注意早点入睡</font>");
}
</script>

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body {
background-color: #FFFFFF;
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<style type="text/css">
body {
background-color: #FFFFFF;
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