today= new Date();                                                                                
          document.write(today.getFullYear(),"年");                                                        
           document.write(today.getMonth()+1,"月");                                                          
           document.write(today.getDate(),"日");                                                             
           document.write(" ");                                                                              
           now = new Date() ;  
           document.write("<font color=black>");                                                                              
           if (now.getDay() == 5) document.write("星期五")                                                   
           if (now.getDay() == 6) document.write("星期六")                                                   
           if (now.getDay() == 0) document.write("<font color=red>","星期日")                                                   
           if (now.getDay() == 1) document.write("星期一")                                                   
           if (now.getDay() == 2) document.write("星期二")                                                  
            if (now.getDay() == 3) document.write("星期三")                                                   
            if (now.getDay() == 4) document.write("星期四")  
            document.write ("</font>");