SELECT 下拉框搜索实现模糊查询（JS+SELECT标签实现）
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<META content="fason,阿信" name=Author>
<title>动态提示的下拉框</title>
<style>
</style>
</head>
<body>
<center>
<h2>动态提示的下拉框</h2>
<hr>
<form name=newform>
<table>
<tr>
<td>请输入1或2或3或4或5进行测试：<br><input name="txtPlace" style="width:100px"> </td>
</tr>
<tr>
<td>
<span id="myselect"><select name="myselect" style="width:100px" size=10 id="sq2" >
<option value="1">1</option>
<option value="12">12</option>
<option value="123">123</option>
<option value="1234">1234</option>
<option value="2">2</option>
<option value="23">23</option>
<option value="234">234</option>
<option value="2345">2345</option>
</span> </select>
</td>
</tr>
</form>
</table>
<hr>
<td>
<script language="javascript">
var TempArr=[];//存贮option
function Init(){
var SelectObj=document.newform.elements["myselect"]
/*先将数据存入数组*/
with(SelectObj)
for(i=0;i<length;i++)TempArr=.text,options.value]
}
function SelectTip(flag){
var TxtObj=document.newform.elements["txtPlace"]
var SelectObj=document.getElementById("myselect")
var Arr=[]
with(SelectObj){
var SelectHTML=innerHTML.match(/<[^>]*>/)
for(i=0;i<TempArr.length;i++)
if(TempArr.indexOf(TxtObj.value)!=-1||flag)//数组中若找到输入的内容，添option。若flag为true,对下拉框初始化
Arr="<option value='"+TempArr+"'>"+TempArr+"</option>"
innerHTML=SelectHTML+Arr.join()+"</SELECT>"
}
}
</script>
</body>
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