如题，而且select中的内容是从数据库中读出，自动生成的！！！！！拜托各位
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1<html>
2<head>
3<title> showOrderTitle </title>
4<script language="JavaScript">
5<!--
6function optionItem(v, t) {
7
8this.value = v;
9this.text = t;
10return this;
11}
12
13var optionItems = new Array();
14optionItems[0] = new optionItem("0", "选项0");
15optionItems[1] = new optionItem("1", "选项1");
16optionItems[2] = new optionItem("2", "选项2");
17optionItems[3] = new optionItem("3", "选项3");
18optionItems[4] = new optionItem("4", "选项4");
19optionItems[5] = new optionItem("5", "选项5");
20optionItems[6] = new optionItem("6", "选项6");
21optionItems[7] = new optionItem("7", "选项7");
22optionItems[8] = new optionItem("8", "选项8");
23
24
25function addOption(v, t) {
26
27var objSelect = document.all.mySelect;
28var pos = objSelect.selectedIndex;
29var objOption = new Option(t, v);
30var fieldExist = false;
31var i = 0;
32for (i=0; i < objSelect.options.length; i++) {
33if (objSelect.options[i].value == v) {
34fieldExist = true;
35alert("“" + v + "("+t+")”字段已经存在");
36break;
37}
38}
39if (!fieldExist) {
40if (pos == -1 ¦ ¦ pos > objSelect.options.length) {objSelect.options[objSelect.options.length] = objOption;}
41else {objSelect.add(objOption, pos);}
42}
43for (i=0; i<objSelect.options.length; i++) {objSelect.options[i].selected=false;}
44}
45
46function deleteOption(type) {
47
48var objSelect = document.all.mySelect;
49for (var i = 0; i < objSelect.options.length; i++) {
50if (objSelect.options[i].selected == true) {
51if (type == true) {objSelect.options[i] = null;}
52else {objSelect.remove(i);}
53i--;
54}
55}
56}
57
58//-->
59</script>
60</head>
61<body leftmargin="0" marginheight="0" marginwidth="0" topmargin="0">
62<script language="JavaScript">
63<!--
64document.write('<select size=' + (optionItems.length+1) + ' multiple name="mySelect">');
65for (i = 0; i < optionItems.length; i++) {
66document.write('<option value="' + optionItems[i].value + '">' + optionItems[i].text + '</option>');
67}
68document.write('</select>');
69//-->
70</script>
71<br/><br/>
72<a href="javascript:deleteOption(true)">删除选中的项</a>
73<br/><br/>
74加入项的值 <input name="v" type="text"/>
75加入项的显示文字 <input name="t" type="text"/>
76<a href="javascript:addOption(v.value, t.value)">在选中项之前添加项</a>
77</body>
78</html>
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1<html>
2<head>
3<script language="javascript">
4function change(obj) {
5alert(obj.options[obj.selectedIndex].text);
6}
7</script>
8</head>
9<body>
10<select name="select1" onchange="change(this)">
11<option>aaa</option>
12<option>bbb</option>
13<option>ccc</option>
14<option>ddd</option>
15</select>
16</body>
17</html>
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当select改变，激发的是onchange事件；
select的当前选项，可以用select的selectedIndex属性来判断，其值是整型数字，从0开始；
options是select各选项的集合，同样，从0开始；
一般根据选项来改变值是通过判断option的value来实现的（当然，也可以通过其他途径）。
知道了以上几点，实现起来就很容易了，如：
1<select onchange="xxx=this.options[this.selectedIndex].value">...</select>
就是很常见的一个写法，变化一下，就实现你的目的了。
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无忧脚本临时论坛：http://51js.webucn.net
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select设置成onchange="change()";
function change()
{
formname.submit();
}
然后页面就会根据变量的值重新发送资料
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1
2......
3dim optionlist
4while not rs.eof
5optionlist=optionlist& "
<option "="" """"="" "selected"="" &="" end="" if="" name='rs("danyuan")' optionlist="optionlist&" rs("danyuan")="" then="" trim(rs("danyuan"))="trim(danyuan)" value="">" & rs("danyuan") & "</option>
1"
2rs.movenext
3wend
4......
1<script language="javascript">
2function jumpMenu(targ,selObj,restore){
3ss="?danyuan="+document.form1.danyuan.value;
4//alert(ss);
5eval(targ+".location='"+ "```
6=myself
7```" + ss+"'");
8}
9</script>
...
1<select name="danyuan" onchange="jumpMenu('self',this,0)" size="1">
2<option>單元</option>
=optionlist
1</select>
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1<html>
2<head><title>dd</title>
3<script language="javascript">
4function changeText(str)
5{
6var obj=eval("document.all."+str);
7var i= document.all.form1.sel.value;
8if (i==1)
9obj.innerText="232323";
10else if (i==2)
11obj.innerText="1121212";
12else
13obj.innerText="^_^";
14}
15
16</script>
17</head>
18<body>
19<table>
20<tr><td id="td1">sdfsf</td></tr></table>
21<form name="form1">
22<select name="sel" onchange="changeText(document.all.td1.id)">
23<option value="1">1</option>
24<option value="2">2</option>
25<option value="3">3</option>
26</select>
27</form></body>
28</html>
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