<html>
<head>
<meta http-equiv="Content-Language" content="zh-tw">
<meta http-equiv="Content-Type" content="text/html; charset=big5">
<title>新增網頁2</title>
</head>
<script language="javascript">
var dalei=["写真自拍","生活娱乐","自然风景","科技时代"];
var lei1=["a","a","a","a"];
var lei2=["b","b","b","b"];
var lei3=["c","c","c","c"];
var lei4=["d","d","d","d"];function lei()
{
var e = document.getElementById("lei");
for (var i=0; i <dalei.length; i++)
{
e.options.add(new Option(dalei[i], dalei[i]));
if (dalei[i] == "null") e.selectedIndex=i+1;
}
}
window.onload=function ()
{
lei();
}
</script><body>
<form id="form1">
<select id="lei"> </select>
<select id="xiaolei"> </select>
</form>
</body>
</html>
<script language="javascript">
var dalei=["写真自拍","生活娱乐","自然风景","科技时代"];
var xiaolei = new Array(4)
alert(xiaolei.length)
xiaolei[0]=["a","a","a","a"];
xiaolei[1]=["b","b","b","b"];
xiaolei[2]=["c","c","c","c"];
xiaolei[3]=["d","d","d","d"]; function lei()
{
var e = document.getElementById("lei");
for (var i=0; i <dalei.length; i++)
{
e.options.add(new Option(dalei[i], dalei[i]));
if (dalei[i] == "null") e.selectedIndex=i+1;
}
} function buildxiaolei(n)
{
var e = document.getElementById("xiaolei");
var select = xiaolei[n]; for (var i=0; i <select.length; i++)
{
e.options.add(new Option(select[i], select[i]));
if (select[i] == "null") e.selectedIndex=i+1;
}
}window.onload=lei;
</script> <body>
<form id="form1">
<select id="lei" onchange="buildxiaolei(this.selectedIndex)"> </select>
<select id="xiaolei"> </select>
</form>
</body>