这样的js数组如何能按要求遍历？！

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我如何通过以上数组代码，用js遍历出数组有几维，或几级，每级多少个项，并且可以直接取出n级中的某一项，谢谢,求高手！！！

解决方案 »

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主要数据结构
  result:{
    paramtypeitems:[
      {name:'xx',
      paramitems:[
          name:'',
          valueitems:[
             {  specid=123, value:"xxx" }
           ]      ]
    },
     .....
   ]
}
这个结构已经规划好了的以多层的name为标识，你直接通过name去检索不就行了
求哪位老大，按以下举例说明：
如何通过以上数组代码，用js遍历出数组有几维，或几级，每级多少个项，并且可以直接取出n级中的某一项，谢谢
可以说有3级 paramtypeitems，paramitems，valueitems
  config.result.paramtypeitems.length  //paramtypeitems 个数
   config.result.paramtypeitems[0].paramitems.length //paramtypeitems[0] 下paramitems 个数
   config.result.paramtypeitems[1].paramitems.length //paramtypeitems[1] 下paramitems 个数
   。。  config.result.paramtypeitems[0].paramitems[0].valueitems.length
  config.result.paramtypeitems[0].paramitems[1].valueitems.length
......................
取值
config.result.paramtypeitems[0].name
config.result.paramtypeitems[0].paramitems[0].valueitems[0].value
用递归方式做，然后用foreach遍历，嗯还得做个判断函数判断是数组还是 json对象大概这样吧