网页插入时间

1. <script>
2. function writedate(){
3. var mydate=new Date();
4. var year=mydate.getYear();
5. var month=mydate.getMonth()+1;
6. var hour=mydate.getHours();
7. var minute=mydate.getMinutes();
8. var second=mydate.getSeconds();
9. var day=mydate.getDate();
10. var d=new Date();
11. var weekday=new Array(7);
12. weekday[0]="星期日";
13. weekday[1]="星期一";
14. weekday[2]="星期二";
15. weekday[3]="星期三";
16. weekday[4]="星期四";
17. weekday[5]="星期五";
18. weekday[6]="星期六";
19. str=year+"年"+month+"月"+day+"日&nbsp;"+weekday[d.getDay()]+"&nbsp;";
20. if((hour+"").length==1)str=str+"0"+hour+":";
21. else str=str+hour+":";
22. if((minute+"").length==1)str=str+"0"+minute+":";
23. else str=str+minute+":";
24. if((second+"").length==1)str=str+"0"+second;
25. else str=str+second;
26. return str;}
27. function nowdatevisiblefun(){
28. document.getElementById("menu_right").innerHTML=writedate();
29. setTimeout("nowdatevisiblefun()",1000);
30. }
31. nowdatevisiblefun();
32. </script>