根据时间改变背景
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>时间</title> 6 </head> 7 8 <body> 9 <script type="text/javascript"> 10 function changeBg(){ 11 var date = new Date(), 12 time = date.getHours(); 13 // 14 if(time > 6 && time < 18){//白天 15 document.body.style.background = "#080" ; 16 }else{ 17 document.body.style.background = "#f00" ; 18 } 19 20 } 21 changeBg(); 22 </script> 23 </body> 24 </html>