两级联动菜单 与 多级联动菜单两级联动菜单
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script language="JavaScript" type="text/javascript">
<!--
var province_ar=new Array("","学历文凭|旅游管理,工商企业管理,文秘,金融,国际贸易,会计,英语,计算机应用,法律,艺术设计","成人高教|工商企业管理,国际经济与贸易,外贸英语,计算机应用与管理,艺术设计","高教自考|饭店管理,工商企业管理,中英合作商务管理,保险,国际贸易,英语,电子商务,计算机及应用,法律,广告");
function show_province()
{
var pro_tmp=document.all.province;
for (m=pro_tmp.options.length-1;m>0;m--)
pro_tmp.options[m]=null;
for(i=0;i<province_ar.length;i++)
{
if(province_ar[i]!="")
{
tmp=province_ar[i].split("|");
pro_tmp.options[i]=new Option(tmp[0],tmp[0]);
}
}
}
function show_city(sc)
{
var temp=document.all.city;
for (m=temp.options.length-1;m>0;m--)
temp.options[m]=null;
if(province_ar[sc]!="")
{
tmp=province_ar[sc].split("|");
tmp=tmp[1];
tmp=tmp.split(",");
for(i=0;i<tmp.length;i++)
{
temp.options[i]=new Option(tmp[i],tmp[i]);
}
}
}
setTimeout("show_province();",20);//第一个搜索中省份城市对应
-->
</script>
</HEAD>
<BODY>
<FORM name="testform" id="testform">
<select id=province
onchange=show_city(this.options.selectedIndex)>
<OPTION value="" selected>请选择类别</option>
</select>
<select id=city>
<OPTION value="" selected>请选择专业</OPTION>
</select>
</FORM>
</BODY>
</HTML>
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多级联动菜单
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<BODY>
<SELECT NAME="s1"><option>需要JavaScript才能正确显示</SELECT>
<SELECT NAME="s2"></SELECT>
<SELECT NAME="s3"></SELECT>
<SELECT NAME="s4"></SELECT>
<SCRIPT LANGUAGE="JavaScript">
<!--
//选择框的名字
selector = [ "s1", "s2", "s3", "s4" ];
//选择项: "名字", "值", 子选择
menu = [
"地球","1",
[
"中国","86",
[
"北京","BJ",
[
"--","1",null
],
"四川","SC",
[
"成都","28",null,
"乐山","",null,
"攀枝花","",null,
"自贡","",null,
"德阳","",null,
"绵阳","",null
]
],
"米国","1",
[
"加利福尼亚","CA",
[
"旧金山","1",null,
"洛杉矶","2",null
],
"华盛顿","WA",
[
"西雅图","seattle",null
]
]
],
"火星","2",
[
"大峡谷","86",
[
"小山丘","BJ",
[
"A地区","28",null,
"B地区","",null,
"C地区","",null
]
]
]
];
function wizz(level)
{
if( level == 0 )
a = menu;
else
{
str = "menu";
for( i=0; i<level; i++ )
str += "[" + (document.all[selector[i]].selectedIndex * 3 + 2) + "]";
a = eval(str);
}
if( a == null ) return;
s = document.all[selector[level]];
i = s.length;
while( i > 0 ) s.options[--i] = null;
while( i < Math.floor(a.length/3) )
s.options[i] = Option( a[i*3], a[i++*3+1] );
s.onchange = Function("wizz(" + (level+1) + ")");
wizz(level+1);
}
wizz(0);
//-->
</SCRIPT>
</BODY>
</HTML>
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