andsky
(andsky)
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注册 2005-2-18
状态 离线
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贴一个ajax 的联动菜单
这个主要是为了选择城市而写的
<?php
/**
[email]andsky888@gmail.com[/email]
citys, 联动菜单
选定值,表单名,选择框名,连动清空如每三个
citys.init(value,form,select,clean);
**/
var citys = {
value: 0,
form: null,
select: null,
url: "index.php?module=ajax&action=province&cid=",
init: function (value,form,select,clean)
{
//alert(value);
this.value = value;
this.form = document.forms[form];
this.select = select;
//alert(clean);
if (typeof clean != 'undefined')
{
this.Clean(clean);
this.Default(clean);
}
//alert(value);
if (value == -1) return;
this.GetData();
},
GetData: function()
{
var req = new Request(
function()
{
if (req.xmlhttp.readyState == 4 && req.xmlhttp.status == 200)
{
//alert(req.xmlhttp.responseText);
citys.SetData(req.xmlhttp.responseText);
}
}
);
req.get(this.url+this.value);
},
SetData: function(data)
{
var rxr = data.trim().split(",");
this.Clean(this.select);
this.Default(this.select);
//alert(rxr.length);
if (rxr.length > 1)
{
for (var i=0;i<rxr.length ; i++)
{
//alert(rxr[i]);
var oOption = document.createElement("option");
txt = rxr[i].split("|")
oOption.text = txt[1];
oOption.value = txt[0];
//document.all(this.select).options.add
//select.options.add(oOption);
this.form[this.select].options.add(oOption);
}
}
},
Clean: function(id)
{
this.form[id].options.length=0;
},
Default: function(id)
{
this.form[id].options.add(new Option('----','-1'));
}
}
?>
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