<script language="javascript">
<!--
var f_show = new Array();
var f_value = new Array();
var s_show = new Array();
var s_value = new Array();
f_show[0]='电影';
f_value[0]='0100';
s_show[0]=new Array();
s_value[0]=new Array();
s_show[0][0]='枪战';
s_value[0][0]='0101';
s_show[0][1]='科幻';
s_value[0][1]='0102'; f_show[1]='体育';
f_value[1]='0200';
s_show[1]=new Array();
s_value[1]=new Array();
s_show[1][0]='足球';
s_value[1][0]='0201';
s_show[1][1]='游泳';
s_value[1][1]='0202';
function Do_Change(args1,args2){
var s=args1
var s1=args2
if(s.options[s.selectedIndex].value=="0100"){
s1.add(new Option(s_show[0],s_value[0]))
}
if(s.options[s.selectedIndex].value=="0200"){
s1.options.length=0;
s1.add(new Option(s_show[1],s_value[1]))
}
}
//-->
</script><body>
<form name="form1" method="post" action="">
<p>
<select name="se" onChange="Do_Change(document.form1.se,document.form1.sel)">
<option value="0000">请选择</option>
<option value="0100">电影</option>
<option value="0200">体育</option>
</select>
</p>
<p>
<select name="sel" size="4">
</select>
</p>
</form>
</body>
<!--
var f_show = new Array();
var f_value = new Array();
var s_show = new Array();
var s_value = new Array();
f_show[0]='电影';
f_value[0]='0100';
s_show[0]=new Array();
s_value[0]=new Array();
s_show[0][0]='枪战';
s_value[0][0]='0101';
s_show[0][1]='科幻';
s_value[0][1]='0102'; f_show[1]='体育';
f_value[1]='0200';
s_show[1]=new Array();
s_value[1]=new Array();
s_show[1][0]='足球';
s_value[1][0]='0201';
s_show[1][1]='游泳';
s_value[1][1]='0202';
function Do_Change(args1,args2){
var s=args1
var s1=args2
if(s.options[s.selectedIndex].value=="0100"){
s1.add(new Option(s_show[0],s_value[0]))
}
if(s.options[s.selectedIndex].value=="0200"){
s1.options.length=0;
s1.add(new Option(s_show[1],s_value[1]))
}
}
//-->
</script><body>
<form name="form1" method="post" action="">
<p>
<select name="se" onChange="Do_Change(document.form1.se,document.form1.sel)">
<option value="0000">请选择</option>
<option value="0100">电影</option>
<option value="0200">体育</option>
</select>
</p>
<p>
<select name="sel" size="4">
</select>
</p>
</form>
</body>
<html>
<head></head>
<body>
<script language="javascript">
var f_show = new Array();
var f_value = new Array();
var s_show = new Array();
var s_value = new Array();
f_show[0]='电影';
f_value[0]='0100';
s_show[0]=new Array();
s_value[0]=new Array();
s_show[0][0]='枪战';
s_value[0][0]='0101';
s_show[0][1]='科幻';
s_value[0][1]='0102';
f_show[1]='体育';
f_value[1]='0200';
s_show[1]=new Array();
s_value[1]=new Array();
s_show[1][0]='足球';
s_value[1][0]='0201';
s_show[1][1]='游泳';
s_value[1][1]='0202';
function Do_Change(args1,args2){
var s=args1;
var s1=args2;
s1.options.length=0;
for(var k=0;k<f_show.length;k++)
{
if(f_value[k]==s.value)
{
for(var i=0;i<s_show[k].length;i++)
{
s1.add(new Option(s_show[k][i],s_value[k][i]));
}
}
}
}
</script>
<form name="form1" method="post" action="">
<p>
<select name="se" onChange="Do_Change(document.form1.se,document.form1.sel)">
<option value="0000">请选择</option>
<option value="0100">电影</option>
<option value="0200">体育</option>
</select>
</p>
<p>
<select name="sel" size="4">
</select>
</p>
</form>
</body>
</html>