急，在线等！大家帮我看看这段代码哪里出问题了？

Question

这段是判断所选择的城市是否属于省会城市
function GetCityText()
{ var sel = document.getElementById("s2").value;   
  alert(sel);
  var index = sel.selectedIndex;   
  alert(index);
  var text = sel.options[index].text; 
  alert(text);
  return text;
   }function CheckCenterCity()
{  
  var strs= new Array();    
  strs()=["北京市区","天津市区","石家庄市","太原市","呼和浩特市","沈阳市","长春市","哈尔滨市","上海市区","南京市","杭州市","合肥市","福州市","南昌市","济南市","郑州市","武汉市","长沙市","广州市","南宁市","重庆市区","成都市","贵阳市","昆明市","西安市","兰州市","西宁市","银川市","乌鲁木齐市"];
  var s=GetCityText(); 
  alert(s);
  for(i=0;i<=strs.length;i++){     
    if(strs[i].indexof(s)!=-1)
       document.form1.rsrCitySort[0].checked =true;
    else 
      document.form1.rsrCitySort[1].checked =true;
          
  }
}然后函数的使用在这段：
<td width="97">城市编号<span class="alerttag">*</span>：</td>
            <td>
                        <span id="spryselect2">
            <label>
              <select name="rsrCity" id="s2" class="input_out" onchange="CheckCenterCity();">                                       
              </select>                     
            </label>
            <span class="selectRequiredMsg">必须选择一个市。</span></span></td>本来想一行行调试的，但是alert(sel);都没弹出来。

Answer 1

 strs()=["北京市区","天津市区",这一段的()去掉，是语法错误

Answer 2

按bhbhxy说的去掉那个括号后，函数运行了，但是好像不会循环，i只运行一次后就停止了

Answer 3

还是语法错误，数组好像没有indexOf方法的
strs[i].toString().indexof(s)!=-1这么改试试

Answer 4

for(i=0;i<=strs.length;i++){  
    alert(strs[i]);    
    if(strs[i].indexof(s)!=-1)
       return true;只弹出“北京市区”后，就再也没有内容弹出来了

Answer 5

if(strs[i].toString().indexOf(s)!=-1)

Answer 6

function CheckCenterCity()
{  
  var strs= new Array();    
  strs=["北京市区","天津市区","石家庄市","太原市","呼和浩特市","沈阳市","长春市","哈尔滨市","上海市区","南京市","杭州市","合肥市","福州市","南昌市","济南市","郑州市","武汉市","长沙市","广州市","南宁市","重庆市区","成都市","贵阳市","昆明市","西安市","兰州市","西宁市","银川市","乌鲁木齐市"];
  var s=GetCityText(); 
  alert(s);
  for(i=0;i<=strs.length;i++){     
    if(strs[i].indexof(s)!=-1){
       document.form1.rsrCitySort[0].checked =true;
       break;
    }
    else 
      document.form1.rsrCitySort[1].checked =true;
          
  }
}

Answer 7

bhbhxy，现在如果选的是省会城市，则document.form1.rsrCitySort[0].checked =true;这个执行了，
但是如果选的不是省会城市，document.form1.rsrCitySort[1].checked =true;这句不会执行啊

Answer 8

改成这样后
function GetCityText()
{  
  var strs= new Array();    
  strs=["北京市区","天津市区","石家庄市","太原市","呼和浩特市","沈阳市","长春市","哈尔滨市","上海市区","南京市","杭州市","合肥市","福州市","南昌市","济南市","郑州市","武汉市","长沙市","广州市","南宁市","重庆市区","成都市","贵阳市","昆明市","西安市","兰州市","西宁市","银川市","乌鲁木齐市"];
  //var s=GetCityText(); 
  var s=document.getElementById("s2").value;
  alert(s);
  //alert(strs.length);  
  for(i=0;i<=strs.length;i++){  
    alert(strs[i]);  
    alert(strs[i].toString().indexOf(s));      
    if(strs[i].toString().indexOf(s)=0){
      return true;
      break;
    }
    else continue;      
   }
   return false;   
 }  function CheckCenterCity()
{   
   if (GetCityText()==true)  
      document.form1.rsrCitySort[0].checked =true;
    else 
      document.form1.rsrCitySort[1].checked =true;         
  
}如果选的是省会城市，则document.form1.rsrCitySort[0].checked =true;这个执行了，
但是如果选的不是省会城市，document.form1.rsrCitySort[1].checked =true;这句不会执行啊

Answer 9

function CheckCenterCity()
{  
  var strs= new Array();    
  strs=["北京市区","天津市区","石家庄市","太原市","呼和浩特市","沈阳市","长春市","哈尔滨市","上海市区","南京市","杭州市","合肥市","福州市","南昌市","济南市","郑州市","武汉市","长沙市","广州市","南宁市","重庆市区","成都市","贵阳市","昆明市","西安市","兰州市","西宁市","银川市","乌鲁木齐市"];
  var s=GetCityText(); 
  alert(s);
  for(i=0;i<=strs.length;i++){     
    if(strs[i].indexOf(s)!=-1){
       document.form1.rsrCitySort[0].checked =true;
       break;
    }
    else 
      document.form1.rsrCitySort[1].checked =true;
          
  }
}

Answer 10

这个函数已经循环查找了匹配变量s的数组项
验证方法就是在
for循环里将i的值alert出来，i会显示从0到匹配项的次数

Answer 11

for(i=0;i<=strs.length;i++){     
    if(strs[i].toString().indexOf(s)!=-1){
       document.form1.rsrCitySort[0].checked =true;
       break;
    }
    else 
      document.form1.rsrCitySort[1].checked =true;
          
}

Answer 12

还是不行啊
for(i=0;i<=strs.length;i++){  
    alert(strs[i]);  
    alert(strs[i].toString().indexOf(s));      
    if(strs[i].toString().indexOf(s)!=-1){
      return true;
      break;
    }
    else continue;      
   }
   return false;   
如果不是省会城市，rsrCitySort[1].checked 还是没有被选中啊

Answer 13

把完整的html和javascript贴上来吧

Answer 14

我说下解决方法吧：
把for(i=0;i<=strs.length;i++){  改成
for(i=0;i<strs.length;i++){  就行了，呵呵

Answer 15

再次谢谢热心的bhbhxy和hongmei85