<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>标题页</title>
</head>
<body>
<form name="s">
<select name="sel" multiple size="10">
<option>姓名一</option>
<option>姓名二</option>
<option>姓名三</option>
<option>姓名四</option>
<option>姓名五</option>
<option>姓名六</option>
</select>
<select name="sel2" multiple size="10">
</select>
<input type="button" name="s3" value="前三" onclick="movelist('sel2')">
<input type="button" name="s4" value="后三" onclick="movelist2('sel')">
<input type="reset" name="btnReset" value="重置">
</form>
<script language="javascript">
function movelist(to){
mylist2=document.s.sel2;
var news1=new Option("姓名一","0");
mylist2.options[0]=news1;
var news2=new Option("姓名二","1");
mylist2.options[1]=news2;
var news3=new Option("姓名三","2");
mylist2.options[2]=news3;
}
function movelist2(to){
mylist=document.s.sel2;
var newoption=new Option("姓名四","0");
mylist.options[0]=newoption;
var newoption=new Option("姓名五","1");
mylist.options[1]=newoption;
var newoption=new Option("姓名六","2");
mylist.options[2]=newoption;
}
mylist=document.s.sel;
document.write ("多选列表中当前选择为:"+mylist.selectedIndex+"<br>");
</script>
</body>
</html>
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为什么``
我按下重置按钮`
完全无反应的``
不是这样设置的吗?``
