怎么在jsp页面中修改js中的数据???

这是js，在页面中出发城市：用到，怎么对js 里的数据增加，比如现在我想增加一个城市天津在jsp页面上怎么增加??


var flycitys=[
{name:'南京',py:'nj',py_all:'Nanjing'},
{name:'北京',py:'bj',py_all:'Beijing'},
{name:'上海',py:'sh',py_all:'Shanghai'},
{name:'广州',py:'gz',py_all:'Guangzhou'}
怎么在这增加城市????
}

---

flycitys.push({name:'天津',py:'tj',py_all:'Tianjin'});

---

JScript code:

<script type="text/javascript">
var flycitys=[
{name:'南京',py:'nj',py_all:'Nanjing'},
{name:'北京',py:'bj',py_all:'Beijing'},
{name:'上海',py:'sh',py_all:'Shanghai'},
{name:'广州',py:'gz',py_all:'Guangzhou'}
]
flycitys.push({name:'广州',py:'gz',py_all:'Guangzhou'});
alert(flycitys.length);
</script>

---

引用

JScript code <script type="text/javascript">var flycitys=[
        {name:'南京',py:'nj',py_all:'Nanjing'},
        {name:'北京',py:'bj',py_all:'Beijing'},
        {name:'上海',py:'sh