javascript 数组Array对象

你好,

我想宣告一个二维阵列,但是一直出错。

我想要

shichen["甲"][1]="甲子";

shichen["甲"][2]="乙丑";

......

shichen["乙"][1]="丙子";

shichen["乙"][1]="丁丑";。。。。。

我该怎么宣告?下面看起来都执行不了。。。

var shichen = ["甲","己","乙","庚","丙","辛","丁","壬","戊","癸"];

shichen["甲"][] = ["甲子","乙丑","丙寅","丁卯","戊辰","己巳","庚午","辛未","壬申","癸酉","甲戌","乙亥"];

shichen["己"][] = ["甲子","乙丑","丙寅","丁卯","戊辰","己巳","庚午","辛未","壬申","癸酉","甲戌","乙亥"];

shichen["乙"][] = ["丙子","丁丑","戊寅","己卯","庚辰","辛巳","壬午","癸未","甲申","乙酉","丙戌","丁亥"];

shichen["庚"][] = ["丙子","丁丑","戊寅","己卯","庚辰","辛巳","壬午","癸未","甲申","乙酉","丙戌","丁亥"];

shichen["丙"][] = ["戊子","己丑","庚寅","辛卯","壬辰","癸巳","甲午","乙未","丙申","丁酉","戊戌","己亥"];

shichen["辛"][] = ["戊子","己丑","庚寅","辛卯","壬辰","癸巳","甲午","乙未","丙申","丁酉","戊戌","己亥"];

shichen["丁"][] = ["庚子","辛丑","壬寅","癸卯","甲辰","乙巳","丙午","丁未","戊申","己酉","庚戌","辛亥"];

shichen["壬"][] = ["庚子","辛丑","壬寅","癸卯","甲辰","乙巳","丙午","丁未","戊申","己酉","庚戌","辛亥"];

shichen["戊"][] = ["壬子","癸丑","甲寅","乙卯","丙辰","丁巳","戊午","己未","庚申","辛酉","壬戌","癸亥"];

shichen["癸"][] = ["壬子","癸丑","甲寅","乙卯","丙辰","丁巳","戊午","己未","庚申","辛酉","壬戌","癸亥"];

======================================================
在最后，我邀请大家参加新浪APP，就是新浪免费送大家的一个空间，支持PHP+MySql，免费二级域名，免费域名绑定 这个是我邀请的地址，您通过这个链接注册即为我的好友，并获赠云豆500个，价值5元哦！短网址是http://t.cn/SXOiLh我创建的小站每天访客已经达到2000+了，每天挂广告赚50+元哦，呵呵，饭钱不愁了，\(^o^)/