这个程序怎么改，高分求教，成功后马上解帖

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<html>
<body>
<select onchange="change(this.value)">
<option></option>
<option value="display_1">text</option>
<option value="display_2">select</option>
</select>
<input type=text name=display_1 style="display:none">
<select name=display_2 style="display:none">
<option></option>
</select>
</body>
</html>
<script>
function change(val){
with(document.all){
if(val=="display_1"){
display_1.style.display="block";
display_2.style.display="none";
}
if(val=="display_2"){
display_2.style.display="block";
display_1.style.display="none";
}
}
}
</script>

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>苏州东南区域管理中心车籍资料查询系统</title>
<style type="text/css">

</style>
<style type="text/css">

</style>
</head><body background="img/bg.gif" topmargin="0" marginheight="0">
<p> </p>
<p> </p>
<p> </p>
<table width="100%" height="132" border="0" align="center">
  <tr>
    <td height="46">
      <div align="center">
        <p  ><strong><font color="#FF0000">苏州东南区域管理中心车籍资料查询系统</font></strong></p>
      </div></td>
  </tr>
  <tr>
    <td height="80">
      <div align="center">
        <form action="ckmain.asp" method="post" name="form2" target="mainFrame">
          <table width="770" border="0" align="center" cellpadding="0" cellspacing="0" class="table2">
            <tr bgcolor="#99CCFF" class="tbale1">
              <td width="183" height="34" bgcolor="#CAE7F7" class="tbale1"> </td>
              <td width="317" align="center" valign="middle" bgcolor="#CAE7F7" class="tbale1">请选择查询条件
                <select name="fhd" id="select2" onchange="aa(this)">
                  <option value="1">显示全部</option>
                  <% if session("flag")=1 then%>
                  <option value="xsfgs">销售公司</option>
                  <% end if%>
                  <option value="fdjh">发动机号</option>
                  <option value="dph">底盘号</option>
                  <option value="cx">类型</option>
                  <option value="color">颜色</option>
                  <option value="lxdz">联系地址</option>
                  <option value="yb">邮编</option>
                  <option value="jcdata">交车日期</option>
                  <option value="bxdata">保险日期</option>
                  >
                  <option value="flag">地区</option>
                </select></td>
              <td width="69" bgcolor="#CAE7F7" class="tbale1"><input name="mohu" type="checkbox" id="mohu" value="1" checked>
                模糊</td>
              <td colspan="3" bgcolor="#CAE7F7" class="tbale1">排序方式
                <label>
                <input type="radio" name="px" value="1">
                降序</label> <label>
                <input name="px" type="radio" value="2" checked>
                升序</label></td>
            </tr>
            <tr bgcolor="#99CCFF" class="tbale1">
              <td height="65" colspan="3" bgcolor="#CAE7F7" class="tbale1"> <label>
                </label> <label> </label>
                <div align="left">

                    <input name="neirong" type="text" class="table1" id="neirong" style="display:none" value="请输入查询内容:">

                    <select name="xsgs" id="select5"  style="display:none">
                      <option>==请选择销售公司==</option>
                      <option>常州销售分公司</option>
                      <option>无锡销售分公司</option>
                      <option>南通销售分公司</option>
                      <option>苏州销售分公司</option>
                    </select>
                    <select name="cx" id="select4"  style="display:none">
                      <option>==请选择车型==</option>
                      <option>得利卡</option>
                      <option>富利卡</option>
                      <option>凌帅</option>
                    </select>
                    <input name="ckmc" type="text" id="ckmc3" style="display:none">
                    <select name="color" id="color" style="display:none">
                      <option>==请选择颜色==</option>
                      <option>白色</option>
                      <option>蓝色</option>
                      <option>黑色</option>
                    </select>

                </div></td>
              <td width="201" colspan="3" bgcolor="#CAE7F7" class="tbale1">

                 </td>
            </tr>
            <tr bgcolor="#99CCFF" class="table1">
              <td bgcolor="#CAE7F7" class="tbale1">注：<font color="#FF0000">日期格式<%= date%></font></td>
              <td colspan="2" align="center" valign="middle" bgcolor="#CAE7F7" class="tbale1">
                <input type="submit" name="Submit" value="开始查询">   
                <input type="reset" name="Submit2" value="重新选择"> <input name="go" type="hidden" id="go" value="1"></td>
              <td align="center" valign="middle" bgcolor="#CAE7F7" class="tbale1">
              </td>
            </tr>
          </table>
        </form>
      </div></td>
  </tr>
</table>
<script>
function aa(oE)
{
var oA = document.all("xsgs");
var oB = document.all("ckmc");
var oC =document.all("cx");
var oD =document.all("neirong")
var oF =document.all("color")
if(oE.options[oE.selectedIndex].text == '销售公司')
{
oA.style.display = "block";
oB.style.display = "none";
oC.style.display = "none";
oD.style.display = "none";
oF.style.display = "none";
}
else
if(oE.options[oE.selectedIndex].text == '显示全部')

{
oA.style.display = "none";
oB.style.display = "none";
oC.style.display = "none";
oD.style.display = "none";
oF.style.display = "none";
}
else
if (oE.options[oE.selectedIndex].text == '类型')
{
oA.style.display = "none";
oB.style.display = "none";
oC.style.display = "block";
oD.style.display = "none";
oF.style.display = "none";
}

else
if (oE.options[oE.selectedIndex].text == '颜色')

{
oA.style.display = "none";
oB.style.display = "none";
oC.style.display = "none";
oD.style.display = "none";
oF.style.display = "block";
}
else
{
oA.style.display = "none";
oB.style.display = "block";
oC.style.display = "none";
oD.style.display = "block";
oF.style.display = "none";
}
}
</script>
</body>
</html>
自动插入：存为html就可以了，数据你自己编写<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>苏州东南区域管理中心车籍资料查询系统</title>
<script>
var data = new Object();
var id = 0;
data['0=corp'] = new Object();
data['0=corp']['11=haier'] = new Array('111=ele','222=tv','333=ra');
data['0=corp']['12=toshiba'] = new Array('112=ele1','223=tv1','334=ra1');
data['0=corp']['13=hitach'] = new Array('113=ele2','225=tv2','338=ra2');
data['1=corp1'] = new Object();
data['1=corp1']['111=haier1'] = new Array('111=ele','222=tv','333=ra');
data['1=corp1']['121=toshiba1'] = new Array('112=ele1','223=tv1','334=ra1');
data['1=corp1']['131=hitach1'] = new Array('113=ele2','225=tv2','338=ra2');
data['2=corp2'] = new Object();
data['2=corp2']['112=haier2'] = new Array('1111=ele111','22211=tv111','3335=ra253');
data['2=corp2']['122=toshiba2'] = new Array('1121=ele1111','22311=tv222','3342=ra1345');
data['2=corp2']['132=hitach2'] = new Array('1131=ele2111','225=tv2215','33812=ra2566');function GenList(s,f)
{
var st = eval(s);
var sl;
var tmp = new Array();
f = f.substr(f.indexOf('_')+1,f.length);
f = 'chiny_'+(++f);
//alert(f);
if (st)
{
if (!(sl = document.getElementById(f)))
{
sl = document.createElement("select");
sl.id = 'chiny_'+(++id);
document.body.insertBefore(sl);
}
sl.length = 0;
sl.string = s;
for (var k in st)
{
tmp = (k.indexOf('=') > 0 ? k : st[k]).split('=');
sl[sl.length] = new Option(tmp[1],tmp[0]);
} sl.onchange = cook;
}
else
{
alert(s);
}

}
function cook()
{
GenList(this.string+"['"+this.value+"="+this.options[this.selectedIndex].text+"']",this.id);
//alert(this.value);
}</script>
</head>
<body onload="GenList('data','chiny_0')">
</body>
</html>