气,问一下各位朋友javascript代码在什么情况下不能执行!

各位老大不是我想禁止javascript脚本的执行,我想我太想让它哪都能执行了

客户根本说不清,也不懂,我就是想知道什么环境javascript会不好用
另外我的程序是在带框架frame的网页里的,有影响吗?

屏蔽软件多数是屏蔽广告与ActiveX的，一般不会屏蔽javascript的

这个就有点复杂了，因为二级菜单要用到层，frame和层之间的问题是很多的，你只有把具体问题说清楚，大家才能帮你分析一下啊。

层是指<div>吗?,我的二级不用<DIV>

就是类似以下的选择省/市
的级联菜单
<SELECT style="WIDTH: 105px" onclick=javascript:sdistrictcity(document.atform.citycode,this.value)
      name=province> <OPTION value="" selected>---所在省---</OPTION></SELECT>
      <SELECT style="WIDTH: 105px" name=citycode> <OPTION value=""
        selected>---所在市---</OPTION></SELECT>
      <SCRIPT language=javascript src="City.JS"></SCRIPT>
      <SCRIPT language=javascript>
function clear(o){
l=o.length;
for (i = 0; i < l; i ++){
o.options[0]=null;
}
}
for (i=0;i<P.length;i++){
document.atform.province.add(new Option(P[i],PC[i]));
}function sdistrictcity(oj,v){
m=-1;
for (i=0;i<P.length;i++){
if (PC[i]==v){
m=i;
}
}
clear(oj);
if (m!=-1){
for (i=0;i<CC[m].length;i++){
oj.add(new Option(C[m][i],CC[m][i]));
}
}
else{
oj.add(new Option("---所在市---",""));
}}
</SCRIPT>

--->>>
--->>>
--->>>1）浏览器是否支持
2)  代码错误,元素名，标记....
3）域块问题：
    例如：A，<div>script  </div> B， <table><tr><td>  script  </td></tr></table>
  C，<body> script  </body>
  所以有时相同的一段代码你看完全没有 “2）”的错误，但嵌入不同的域块内，有时可以有时不成。

好像浏览器里可以禁用JavaScript脚本，那就不能用了

<frameset cols="180,*" framespacing="0" frameborder="0" border="0" scrolling="auto" id="frame">
<frame name="left" scrolling="auto" noresize src="left.asp" framespacing="0" frameborder="0" border="false" target="_self">
<frameset rows="30,*" scrolling="auto">
<frame name="rtop" src="right_up.asp" scrolling="no" target="rbottom">
<frame name="rbottom" src="right_down.asp" scrolling="auto" target="_self">
</frameset>
<noframes>
<body> <p>此网页使用了框架，但您的浏览器不支持框架。</p> </body>
</noframes>
</frameset>
我的脚本是运行在right_down.asp所在子框架中的,这样有什么问题吗?

请关注: http://community.csdn.net/Expert/topic/4610/4610918.xml?temp=.9874689
两个帖子200分呢,求高手

<SCRIPT language=JavaScript>
var city = new Array(
new Array("合肥-合肥","芜湖-芜湖","蚌埠-蚌埠","巢湖-巢湖","滁州-滁州","淮南-淮南","安庆-安庆","池州-池州","宣城-宣城","马鞍山-马鞍山","黄山-黄山","铜陵-铜陵","宿州-宿州","淮北-淮北","阜阳-阜阳","其它-其它"),
new Array("北京-北京","其它-其它"),
new Array("重庆-重庆","其它-其它"),
new Array("福州-福州","泉州-泉州","三明-三明","漳州-漳州","南平-南平","宁德-宁德","龙岩-龙岩","莆田-莆田","厦门-厦门","其它-其它"),
new Array("兰州-兰州","其它-其它"),
new Array("广州-广州","深圳-深圳","佛山-佛山","中山-中山","江门-江门","惠州-惠州","东莞-东莞","汕头-汕头","湛江-湛江","茂名-10","肇庆-11","韶关-12","阳江-13","珠海-14","其它-其它"),
new Array("南宁-南宁","桂林-桂林","柳州-柳州","其它-其它"),
new Array("贵阳-贵阳","其它-其它"),
new Array("海口-海口","三亚-三亚","其它-其它"),
new Array("石家庄-石家庄","邯郸-邯郸","秦皇岛-秦皇岛","唐山-唐山","沧州-沧州","廊坊-廊坊","保定-保定","张家口-张家口","邢台-邢台","其它-其它"),
new Array("郑州-郑州","上街-上街","漯河-漯河","信阳-信阳","平顶山-平顶山","洛阳-洛阳","三门峡-三门峡","驻马店-驻马店","卧龙-卧龙","商丘-商丘","开封-开封"),
new Array("哈尔滨-哈尔滨","大庆-鸡西","鸡西-鸡西","齐齐哈尔-齐齐哈尔","佳木斯-佳木斯","牡丹江-牡丹江","其它-其它"),
new Array("杭州-杭州","嘉兴-嘉兴","温州-温州","义乌-义乌","宁波-宁波","湖州-湖州","绍兴-绍兴","台州-台州","丽水-丽水","金华-金华","衢州-衢州","舟山-舟山","其它-其它"),
new Array("武汉-武汉","襄樊-襄樊","宜昌-宜昌","荆州-荆州","黄石-黄石","荆门-荆门","十堰-十堰","潜江-潜江","仙桃-仙桃","其它-其它"),
new Array("长沙-长沙","株州-株州","岳阳-岳阳","常德-常德","湘潭-湘潭","娄底-娄底","怀化-怀化","永州-永州","衡阳-衡阳","邵阳-邵阳","郴州-郴州","益阳-益阳","张家界-张家界","株洲-株洲","湘西自治州-湘西自治州","其它-其它"),
new Array("呼和浩特-呼和浩特","包头市-包头市","赤峰市-赤峰市","通辽市-通辽市","乌海市-乌海市","呼伦贝尔市-呼伦贝尔市","鄂尔多斯市-鄂尔多斯市","乌兰察布盟-乌兰察布盟","锡林郭勒盟-锡林郭勒盟","巴彦淖尔盟-巴彦淖尔盟","阿拉善盟-阿拉善盟","兴安盟-兴安盟","其它-其它"),
new Array("南京-南京","无锡-无锡","镇江-镇江","南通-南通","扬州-扬州","盐城-盐城","徐州-徐州","淮阴-淮阴","连云港-连云港","常州-常州","泰州-泰州","苏州-苏州","其它-其它"),
new Array("南昌-南昌","九江-九江","其它-其它"),
new Array("长春-长春","吉林-吉林","四平-四平","延吉-延吉","松原-松原","白山-白山","通化-通化","其它-其它"),
new Array("沈阳-沈阳","大连-大连","金州-金州","瓦房店-瓦房店","庄河-庄河","阜新-阜新","辽阳-辽阳","丹东-丹东","营口-营口","盘锦-盘锦","抚顺-抚顺","本溪-本溪","鞍山-鞍山","锦州-锦州","葫芦岛-葫芦岛","铁岭-铁岭","朝阳-朝阳","其它-其它"),
new Array("银川-银川","其它-其它"),
new Array("西宁-西宁","其它-其它"),
new Array("太原-太原","大同-大同","其它-其它"),
new Array("西安-西安","咸阳-咸阳","宝鸡-宝鸡","汉中-汉中","其它-其它"),
new Array("济南-济南","青岛-青岛","日照-日照","东营-东营","潍坊-潍坊","泰安-泰安","淄博-淄博","烟台-烟台","威海-威海","济宁-济宁","滨州-滨州","临沂-临沂","其它-其它"),
new Array("上海-上海","其它-其它"),
new Array("成都-成都","泸州-泸州","德阳-德阳","乐山-乐山","绵阳-绵阳","宜宾-宜宾","自贡-自贡","攀枝花-攀枝花","内江-内江","南充-南充","其它-其它"),
new Array("天津-天津","其它-其它"),
new Array("拉萨-拉萨","其它-其它"),
new Array("乌鲁木齐-乌鲁木齐","昌吉-昌吉","伊宁-伊宁","其它-其它"),
new Array("昆明-昆明","大理-大理","其它-其它"),
new Array("香港-香港"),
new Array("澳门-澳门"),
new Array("台湾-台湾"),
new Array("其他-其他")
);
</SCRIPT>

<SCRIPT language=JavaScript>function changecity(){index = searchtitle.sf.options.selectedIndex-1;
searchtitle.city.length = city[index].length;
for(var i = 0;i<city[index].length;i++)
{
var text = city[index][i].split("-");
searchtitle.city.options[i].text = text[0];
searchtitle.city.options[i].value =text[1];
}
}
</SCRIPT>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<form action="qyml/qyml.asp" method=get name=searchtitle onSubmit="return docheck()"  target='_blank'>
  <table width="100%" border="0" cellspacing="0" cellpadding="0" height="101">
    <tr>
      <td height="34" valign="top">
        <div align="center">
          <input  style="BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; FONT-SIZE: 9pt; BORDER-LEFT: 1px solid; COLOR: #00000; BORDER-BOTTOM: 1px solid; BACKGROUND-COLOR: #f0f0f0"  name=txtitle size="19" value="名称尽量精简">
        </div>
      </td>
    </tr>
    <tr>
      <td height="31">
        <div align="center">
          <script language=JavaScript>
var city = new Array(
new Array("合肥-合肥","芜湖-芜湖","蚌埠-蚌埠","巢湖-巢湖","滁州-滁州","淮南-淮南","安庆-安庆","池州-池州","宣城-宣城","马鞍山-马鞍山","黄山-黄山","铜陵-铜陵","宿州-宿州","淮北-淮北","阜阳-阜阳","其它-其它"),
new Array("北京-北京","其它-其它"),
new Array("重庆-重庆","其它-其它"),
new Array("福州-福州","泉州-泉州","三明-三明","漳州-漳州","南平-南平","宁德-宁德","龙岩-龙岩","莆田-莆田","厦门-厦门","其它-其它"),
new Array("兰州-兰州","其它-其它"),
new Array("广州-广州","深圳-深圳","佛山-佛山","中山-中山","江门-江门","惠州-惠州","东莞-东莞","汕头-汕头","湛江-湛江","茂名-10","肇庆-11","韶关-12","阳江-13","珠海-14","其它-其它"),
new Array("南宁-南宁","桂林-桂林","柳州-柳州","其它-其它"),
new Array("贵阳-贵阳","其它-其它"),
new Array("海口-海口","三亚-三亚","其它-其它"),
new Array("石家庄-石家庄","邯郸-邯郸","秦皇岛-秦皇岛","唐山-唐山","沧州-沧州","廊坊-廊坊","保定-保定","张家口-张家口","邢台-邢台","其它-其它"),
new Array("郑州-郑州","上街-上街","漯河-漯河","信阳-信阳","平顶山-平顶山","洛阳-洛阳","三门峡-三门峡","驻马店-驻马店","卧龙-卧龙","商丘-商丘","开封-开封"),
new Array("哈尔滨-哈尔滨","大庆-鸡西","鸡西-鸡西","齐齐哈尔-齐齐哈尔","佳木斯-佳木斯","牡丹江-牡丹江","其它-其它"),
new Array("杭州-杭州","嘉兴-嘉兴","温州-温州","义乌-义乌","宁波-宁波","湖州-湖州","绍兴-绍兴","台州-台州","丽水-丽水","金华-金华","衢州-衢州","舟山-舟山","其它-其它"),
new Array("武汉-武汉","襄樊-襄樊","宜昌-宜昌","荆州-荆州","黄石-黄石","荆门-荆门","十堰-十堰","潜江-潜江","仙桃-仙桃","其它-其它"),
new Array("长沙-长沙","株州-株州","岳阳-岳阳","常德-常德","湘潭-湘潭","娄底-娄底","怀化-怀化","永州-永州","衡阳-衡阳","邵阳-邵阳","郴州-郴州","益阳-益阳","张家界-张家界","株洲-株洲","湘西自治州-湘西自治州","其它-其它"),
new Array("呼和浩特-呼和浩特","包头市-包头市","赤峰市-赤峰市","通辽市-通辽市","乌海市-乌海市","呼伦贝尔市-呼伦贝尔市","鄂尔多斯市-鄂尔多斯市","乌兰察布盟-乌兰察布盟","锡林郭勒盟-锡林郭勒盟","巴彦淖尔盟-巴彦淖尔盟","阿拉善盟-阿拉善盟","兴安盟-兴安盟","其它-其它"),
new Array("南京-南京","无锡-无锡","镇江-镇江","南通-南通","扬州-扬州","盐城-盐城","徐州-徐州","淮阴-淮阴","连云港-连云港","常州-常州","泰州-泰州","苏州-苏州","其它-其它"),
new Array("南昌-南昌","九江-九江","其它-其它"),
new Array("长春-长春","吉林-吉林","四平-四平","延吉-延吉","松原-松原","白山-白山","通化-通化","其它-其它"),
new Array("沈阳-沈阳","大连-大连","金州-金州","瓦房店-瓦房店","庄河-庄河","阜新-阜新","辽阳-辽阳","丹东-丹东","营口-营口","盘锦-盘锦","抚顺-抚顺","本溪-本溪","鞍山-鞍山","锦州-锦州","葫芦岛-葫芦岛","铁岭-铁岭","朝阳-朝阳","其它-其它"),
new Array("银川-银川","其它-其它"),
new Array("西宁-西宁","其它-其它"),
new Array("太原-太原","大同-大同","其它-其它"),
new Array("西安-西安","咸阳-咸阳","宝鸡-宝鸡","汉中-汉中","其它-其它"),
new Array("济南-济南","青岛-青岛","日照-日照","东营-东营","潍坊-潍坊","泰安-泰安","淄博-淄博","烟台-烟台","威海-威海","济宁-济宁","滨州-滨州","临沂-临沂","其它-其它"),
new Array("上海-上海","其它-其它"),
new Array("成都-成都","泸州-泸州","德阳-德阳","乐山-乐山","绵阳-绵阳","宜宾-宜宾","自贡-自贡","攀枝花-攀枝花","内江-内江","南充-南充","其它-其它"),
new Array("天津-天津","其它-其它"),
new Array("拉萨-拉萨","其它-其它"),
new Array("乌鲁木齐-乌鲁木齐","昌吉-昌吉","伊宁-伊宁","其它-其它"),
new Array("昆明-昆明","大理-大理","其它-其它"),
new Array("香港-香港"),
new Array("澳门-澳门"),
new Array("台湾-台湾"),
new Array("其他-其他")
);
</script>
          <script language=JavaScript>function changecity(){index = searchtitle.sf.options.selectedIndex-1;
searchtitle.city.length = city[index].length;
for(var i = 0;i<city[index].length;i++)
{
var text = city[index][i].split("-");
searchtitle.city.options[i].text = text[0];
searchtitle.city.options[i].value =text[1];
}
}
</script>
          <select name=sf onChange=changecity()>
            <option selected value="0">==所有区域==</option>
            <option value=安徽>安徽</option>
            <option value=北京>北京</option>
            <option value=重庆>重庆</option>
            <option value=福建>福建</option>
            <option value=甘肃>甘肃</option>
            <option value=广东>广东</option>
            <option value=广西>广西</option>
            <option value=贵州>贵州</option>
            <option value=海南>海南</option>
            <option value=河北>河北</option>
            <option value=河南>河南</option>
            <option value=黑龙江>黑龙江</option>
            <option value=浙江>浙江</option>
            <option value=湖北>湖北</option>
            <option value=湖南>湖南</option>
            <option value=内蒙古>内蒙古</option>
            <option value=江苏>江苏</option>
            <option value=江西>江西</option>
            <option value=吉林>吉林</option>
            <option value=辽宁>辽宁</option>
            <option value=宁夏>宁夏</option>
            <option value=青海>青海</option>
            <option value=山西>山西</option>
            <option value=陕西>陕西</option>
            <option value=山东>山东</option>
            <option value=上海>上海</option>
            <option value=四川>四川</option>
            <option value=天津>天津</option>
            <option value=西藏>西藏</option>
            <option value=新疆>新疆</option>
            <option value=云南>云南</option>
            <option value=香港>香港</option>
            <option value=澳门>澳门</option>
            <option value=台湾>台湾</option>
            <option value=其他>其他</option>
          </select>
        </div>
      </td>
    </tr>
    <tr>
      <td height="38">
        <div align="center">
          <select name=city>
            <option selected value="0">==所辖城市==</option>
          </select>
        </div>
      </td>
    </tr>
    <tr>
      <td>
        <div align="center">
          <input align=bottom border=0
name=I7 src="Qyml/images/creditservice_search.gif" type=image width="57" height="20" >
        </div>
      </td>
    </tr>
  </table>
</form>

自动生成JAVA+strust和.Net代码.
自动生成MS SQL2000 Server存储过程.
http://60.191.0.85/cx/download/Java_AutoCode.rar

数据结构有问题，冗余数据过多。
联动的js很多。
我写的树形联动，欢迎使用。
http://www.cnblogs.com/Files/gudai/dynaList_cn.zip

IE的安全里面有设置,可以设置本地是否允许执行JS,查看一下那里的设置,在INTERNET选项里.

工具-->internet选项-->安全

不能执行可能的情况有：(1)javascrip 只能针对某些版本的ie,用户用了其他版本或非ie浏览器。
应对办法，问清楚用户浏览器的类型，针对该类型测一下。
(2) 用户关闭了javascrip功能或其他一些功能导致程序不能运行，或者用户的某个控件悄悄关闭了浏览器的javascrip功能，应对办法：在登陆的过程中检查浏览器是否打开了javascrip功能。
（3）某些防病毒软件屏蔽或修改了javascript.
应对办法，要求用户关闭防病毒软件测一下。

调试易

气,问一下各位朋友javascript代码在什么情况下不能执行!

解决方案 »