JS级别联动下拉列表老猫的理想 - 共享社区

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JS级别联动下拉列表

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JS级别联动下拉列表

<form name="form1" method="post" action="index_cx.asp"><table border="0" align="center" cellpadding="2" cellspacing="1"><br />                 <tr><br />                   <td><div align="right">旅游意向：</div></td><br />                   <script language = "JavaScript"><br />var onecount;<br />onecount=0;<br />subcat = new Array();<br />//subcat[5] = new Array("abc","1","1");<br />//  5:类别ID   abc:名称 1:类别 1:ID<br />subcat[0] = new Array("大洋洲","1","大洋洲");<br />subcat[1] = new Array("东亚","1","东亚");<br />subcat[2] = new Array("南亚","1","南亚");<br />subcat[3] = new Array("东南亚","1","东南亚");<br />subcat[4] = new Array("地中海及非洲","1","地中海及非洲");<br />subcat[5] = new Array("欧洲","1","欧洲");<br />subcat[6] = new Array("港澳地区","1","港澳地区");<br />subcat[7] = new Array("西南","2","西南");<br />subcat[8] = new Array("西北","2","西北");<br />subcat[9] = new Array("华北","2","华北");<br />subcat[10] = new Array("东北","2","东北");<br />subcat[11] = new Array("华中","2","华中");<br />subcat[12] = new Array("华东","2","华东");<br />subcat[13] = new Array("华南","2","华南");<br />subcat[14] = new Array("北京周边","2","北京周边");<br />subcat[15] = new Array("拉丁美洲","1","拉丁美洲");<br />onecount=16;<br />function changelocation(locationid)<br />    {<br />document.form1.areaid.options[0]=new Option("-请选择-","");<br />    document.form1.areaid.length = 1; <br />   var locationid=locationid;<br />    var i;<br />   for (i=0;i < onecount; i++)<br />       {<br />          if (subcat<i>[1] == locationid)<br />           { <br />                document.form1.areaid.options[document.form1.areaid.length] = new Option(subcat<i>[0], subcat<i>[2]);<br />           }        <br />        }<br />        <br />   }<br />       </script><br />                   <td><select name="rootid" id="rootid" ><br />                       <option  value="" selected>- 请选择 -</option><br />                       <option value="1">出境</option><br />                       <option value="2">国内</option><br />                       <option value="3">省内</option><br />                   </select></td><br />                   <td><br />                 <br />                   区域 ：</td><br />                   <td><select name="areaid" id="areaid"><br />                       <option  value="" selected>-- 请选择 --</option><br />                   </select></td><br />                 </tr><br />                 <tr><br />                   <td colspan="4"><div align="right"></div>                     <br />                     <div align="right"><br />                       <input type="submit" name="Submit" value="提交"><br /></div></td><br />                 </tr><br />             </table>  <br /></form>

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