javascript三级分类

yongfa365 2006-08-24 01:37:20

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现在的情况是：点1可以联动2.点2可以联动3
要实现：点1可以联动2且联动3
要求：不再增加一个跟changelocation一样的函数，（主要是为多级做准备）

现在的想法是只要1联动2后，2的改变可以激起changelocation这个函数，以此类推

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<script language = "JavaScript">
var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array("海尔","0","434");
subcat[1] = new Array("波创","0","435");
subcat[2] = new Array("索博","0","436");
subcat[3] = new Array("瑞朗","0","437");
subcat[4] = new Array("安居宝","0","438");
subcat[5] = new Array("雨读","0","439");
subcat[6] = new Array("三本","0","440");
subcat[7] = new Array("灯光窗帘","434","441");
subcat[8] = new Array("环境检测","434","442");
subcat[9] = new Array("家庭安防","434","443");
subcat[10] = new Array("家庭网关","434","444");
subcat[11] = new Array("可视对讲","434","445");
subcat[12] = new Array("媒体娱乐","434","446");
subcat[13] = new Array("网络家电","434","447");
subcat[14] = new Array("网络冰箱","447","448");
subcat[15] = new Array("网络空调","447","449");
subcat[16] = new Array("网络热水器","447","450");
subcat[17] = new Array("网络微波炉","447","451");
subcat[18] = new Array("网络吸油烟机","447","452");
subcat[19] = new Array("网络洗碗机","447","453");
subcat[20] = new Array("网络洗衣机","447","454");
subcat[21] = new Array("智能开关","435","457");
subcat[22] = new Array("智能插座","435","458");
subcat[23] = new Array("远程控制","435","459");
subcat[24] = new Array("智能遥控","435","460");
subcat[25] = new Array("智能模块","435","461");
subcat[26] = new Array("智能网关","435","462");
subcat[27] = new Array("安防","436","463");
subcat[28] = new Array("窗帘控制","436","464");
subcat[29] = new Array("电脑控制","436","465");
subcat[30] = new Array("定时控制","436","466");
subcat[31] = new Array("概念产品","436","467");
subcat[32] = new Array("家庭娱乐","436","468");
subcat[33] = new Array("接收模块","436","469");
subcat[34] = new Array("净化电力线","436","470");
subcat[35] = new Array("墙上开关","436","471");
subcat[36] = new Array("墙上控制","436","472");
subcat[37] = new Array("随意插接收","436","473");
subcat[38] = new Array("随意插控制","436","474");
subcat[39] = new Array("无线","436","475");
subcat[40] = new Array("远程控制","436","476");
subcat[41] = new Array("载波信号分析","436","477");
subcat[42] = new Array("安防报警","437","478");
subcat[43] = new Array("宠物喂食","437","479");
subcat[44] = new Array("电动窗帘","437","480");
subcat[45] = new Array("电器控制","437","481");
subcat[46] = new Array("家居布线","437","482");
subcat[47] = new Array("系统保障","437","483");
subcat[48] = new Array("智能控制","437","484");
subcat[49] = new Array("智能照明","437","485");
subcat[50] = new Array("主机","438","486");
subcat[51] = new Array("停车场","438","487");
subcat[52] = new Array("管理机","438","488");
subcat[53] = new Array("分机","438","489");
subcat[54] = new Array("其他","438","490");
subcat[55] = new Array("中央音响","439","491");
subcat[56] = new Array("智能弱电箱","439","492");
subcat[57] = new Array("智能AV","439","493");
subcat[58] = new Array("音视频面板","439","494");
subcat[59] = new Array("灵慧眼","439","495");
subcat[60] = new Array("多媒体点播中心","439","496");
subcat[61] = new Array("智能遥控窗门窗帘","440","497");
subcat[62] = new Array("单窗门单窗帘","440","498");
subcat[63] = new Array("双窗门双窗帘","440","500");
onecount=64;
function changelocation(locationid,Category_Search)
{
alert('这里是什么'+Category_Search);
strobj=eval(document.getElementById(Category_Search));
strobj.length = 0;
var locationid=locationid;
var i;
for (i=0;i < onecount; i++)
{
if (i== 0)
{
strobj.options[strobj.length] = new Option("-请选择 -", "");
}
if (subcat[i][1] == locationid)
{
strobj.options[strobj.length] = new Option(subcat[i][0], subcat[i][2]);
}
}
}
</script>

<table width="200" cellspacing="0" cellpadding="0" align="center" style="border:1px solid #666666">
<form action="Product_List.asp" method="get" name="form1">
<tr>
<td height="56"><div align="center">
<table width="200" border="0" cellspacing="1" bgcolor="#CCCCCC">
<tr bgcolor="#FFFFFF">
<td width="189" nowrap="nowrap">产品品牌:
<select name="Category_Search_1" id="Category_Search_1" onChange="changelocation(this.options[this.selectedIndex].value,'Category_Search_2')" style="width:100px">
<option>-请选择-</option>
<option value="434" >海尔</option>
<option value="435" >波创</option>
<option value="436" >索博</option>
<option value="437" >瑞朗</option>
<option value="438" >安居宝</option>
<option value="439" >雨读</option>
<option value="440" >三本</option>
</select>
</td>
</tr>
<tr bgcolor="#FFFFFF">
<td nowrap="nowrap">产品系统:
<select name="Category_Search_2" id="Category_Search_2" onChange="changelocation(this.options[this.selectedIndex].value,'Category_Search_3')" style="width:100px">
<option>-请选择-</option>
</select>
</td>
</tr>
<tr bgcolor="#FFFFFF">
<td nowrap="nowrap">产品类别:
<select name="Category_Search_3" id="Category_Search_3" style="width:100px">
<option>-请选择-</option>
</select></td>
</tr>
</table>
</div></td>
</tr>
</form>
</table>

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