各位大虾,下面这个程序错在哪里？

看看你生成的HTML代码是什么样的？

解决方案 »

  1.   

    <html>
    <head>
    <title>List</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312"><script language = "JavaScript">
    var onecount;
    onecount=0;
    subcat = new Array();

    subcat[0] = new Array("人民币","业务甲","支行甲","网点甲","帐号甲");//将数据库中的内容存入数组
            
    subcat[1] = new Array("人民币","业务乙","支行乙","网点乙","帐号乙");//将数据库中的内容存入数组
            
    subcat[2] = new Array("人民币","业务乙","支行乙","网点丙","帐号丙");//将数据库中的内容存入数组
            
    subcat[3] = new Array("人民币","业务甲","支行甲","网点甲","帐号丁");//将数据库中的内容存入数组
            
    onecount=4;function changelocation(bz,locationid,zh)//改变下拉框的内容
        {
        document.myform.smalllocation.length = 0; 
        var bz=bz;
        var locationid=locationid;
        var zh=zh;
        var i;
        document.myform.smalllocation.options[0] = new Option('====请选择====');
        for (i=0;i < onecount; i++)
            {
                if (subcat[i][0] == bz && subcat[i][1]==locationid && subcat[i][2]==zh)
                { 
                    document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][3]);
                }        
            }
            
        }
    function changelocation1(bz,locationid,zh,wd)//改变下拉框的内容
        {
        document.myform.smalllocation1.length = 0; 
        var bz=bz;
        var locationid=locationid;
        var zh=zh;
        var wd=wd;
        var i;
        document.myform.smalllocation1.options[0] = new Option('====请选择====');
        for (i=0;i < onecount; i++)
            {

                if (subcat[i][0] == bz && subcat[i][1]==locationid && subcat[i][2]==zh && subcat[i][3]==wd)
                { 
                    document.myform.smalllocation1.options[document.myform.smalllocation1.length] = new Option(subcat[i][4]);
                }        
            }
            
        }
      
    </script>
    </head>
    <body>
    <form name="myform" method="post">
        <select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value,document.myform.biglocation1.options[document.myform.biglocation1.selectedIndex].value,document.myform.biglocation2.options[document.myform.biglocation2.selectedIndex].value)">
            
            <option value="人民币">人民币</option>
            
        </select>    <select name="biglocation1" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value,document.myform.biglocation1.options[document.myform.biglocation1.selectedIndex].value,document.myform.biglocation2.options[document.myform.biglocation2.selectedIndex].value)">
            
            <option value="业务甲">业务甲</option>
            
            <option value="业务乙">业务乙</option>
            
        </select>
        <select name="biglocation2" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value,document.myform.biglocation1.options[document.myform.biglocation1.selectedIndex].value,document.myform.biglocation2.options[document.myform.biglocation2.selectedIndex].value)">
            
            <option value="支行甲">支行甲</option>
            
            <option value="支行乙">支行乙</option>
            
        </select> 
        
        <select name="smalllocation" onChange="changelocation1(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value,document.myform.biglocation1.options[document.myform.biglocation1.selectedIndex].value,document.myform.biglocation2.options[document.myform.biglocation2.selectedIndex].value,document.myform.smalllocation.options[document.myform.smalllocation.selectedIndex].value)">
    <option selected value="">==所有关系==</option>
    </select>
        <select name="smalllocation1">
    <option selected value="">==所有关系==</option>
    </select>
    </form>
    </body>
    </html>
    上面就是我生成的HTML代码
      

  2.   

    这么改：if (subcat[i][0] == bz && subcat[i][1]==locationid && subcat[i][2]==zh)
                { 
                    document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][3],subcat[i][3]);
                }