开发学院WEB开发ASP 下拉框连动的小例子(.htm版) 阅读

下拉框连动的小例子(.htm版)

 2000-11-03 10:55:33 来源:WEB开发网   
核心提示:<html><head><title>List</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><script
<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("徐汇区","01","001");
subcat[1] = new Array("嘉定区","01","002");
subcat[2] = new Array("黄浦区","01","003");
subcat[3] = new Array("南昌市","02","004");
subcat[4] = new Array("九江市","02","005");
subcat[5] = new Array("上饶市","02","006");

onecount=6;

function changelocation(locationid)
  {
  document.myform.smalllocation.length = 0;

  var locationid=locationid;
  var i;
  document.myform.smalllocation.options[0] = new Option('====所有地区====','');
  for (i=0;i < onecount; i++)
    {
      if (subcat[i][1] == locationid)
      {
      document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][0], subcat[i][2]);
      }    
    }
    
  }  

//-->
</script>
</head>
<body>
<form name="myform" method="post">
  <select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)">
    <option value="01" selected>上海</option>
    <option value="02">江西</option>
  </select>
  <select name="smalllocation">
    <option selected value="">==所有地区==</option>
  </select>
</form>
<script LANGUAGE="Javascript">
<!--
  changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value);
//-->
</script>
</body>
</html>

Tags:下拉 连动 例子

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