<html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="javascript">
<!--
//测试用的一组数据 //第1级下拉菜单数据
var opt = "一级分类,01;一级分类,02"; //第2级下拉菜单数据
var subopt = "01,二级分类,001;01,二级分类,002;01,二级分类,003;02,二级分类,004;02,二级分类,005;02,二级分类,006"; //第3级下拉菜单数据
var subsubopt = "001,三级分类,0001;002,三级分类,0002;003,三级分类,0003;004,三级分类,0004;005,三级分类,0005;006,三级分类,0006"; /**
* get Element By Id or name.
* 根据一个dom对象的名称返回这个对象,省略了你
* 直接操作document.getElementById的过程.
*
* 例如: $('默认文本框的名称').value
* 就可以取得它的value
*/
function $() {
var elements = new Array(); for (var i = 0; i < arguments.length; i++) {
var element = arguments[i];
if (typeof element == 'string')
element = document.getElementById(element); if (arguments.length == 1)
return element; elements.push(element);
} return elements;
} /*
* 自动填充一个下拉列表,一般用于填充连动菜单的第一项
*
* selname :: 当前下拉选项(this)
* 后缀是为了区分由程序动态生成的如果有多个相同的下拉选项而设
* 置的一个辅助名称后缀('_'下划线作为后缀的分隔符),如果没有这
* 个需要可以忽略 “_后缀”,只要设置一个普通的名称即可.
*
* seldata :: 数据源,菜单的数据项(子下拉选项名称,子下拉选项值,子下拉选项过滤值)
* filter :: 下拉选项的过滤条件
*
*/
function fillselect(selname,seldata,filters) {
var sel = $(selname);
var data = seldata.split(";");
var filtersdata = filters.split(";"); var index = "";
var selkey = "";
var selvalue = ""; if(data.length > 0) { //过滤条件为'all',显示全部,用于连动菜单
if(filtersdata[0] == 'all') {
sel.options[0] = new Option('==查看所有==','all'); for(i=0; i < data.length; i++) {
selkey = data[i].split(",")[1];
selvalue = data[i].split(",")[2];
sel.options[sel.length] = new Option(selkey,selvalue);
}
return;
} sel.options[0] = new Option('==查看所有==','all');
for(i=0;i < data.length; i++) {
//有过滤条件的下拉项(连动菜单数据格式)
if (data[i].split(",").length == 3) {
for(j=0; j < filtersdata.length; j++){
if( (data[i].split(",")[0] == filtersdata[j]) ) {
selkey = data[i].split(",")[1];
selvalue = data[i].split(",")[2];
sel.options[sel.length] = new Option(selkey,selvalue);
}
}
} //无过滤条件的下拉项(非连动菜单数据格式)
if (data[i].split(",").length == 2) {
selkey = data[i].split(",")[0];
selvalue = data[i].split(",")[1];
sel.options[sel.length] = new Option(selkey,selvalue);
} }
if (sel.length == 1) {
sel.options[0] = new Option('==没有选项==','');
}else{
}
}
} /*
* 连动下拉列表的驱动函数
*
* selname_src :: 当前下拉选项(this)
*
* subselname_src :: 所要驱动的子下拉选项的名称(名称结构为: 名称_后缀 或 名称)
* 后缀是为了区分由程序动态生成的如果有多个相同的下拉选项而设
* 置的一个辅助名称后缀('_'下划线作为后缀的分隔符),如果没有这
* 个需要可以忽略 “_后缀”,只要设置一个普通的名称即可.
*
* subseldata_src :: 数据源,被驱动菜单的数据项.
* 数据源格式 : (子下拉选项option过滤值,子下拉选项option内容,子下拉选项option值;......)
*
*/
function driverselect(selname_src,subselname_src,subseldata_src) { var index = "", selkey = "", selvalue = ""; var selName="", selSuffix="";
var subselName="", subselSuffix="";
if(selname_src.name.split("_").length==2) {
selName=selname_src.name.split("_")[0];
selSuffix="_" + selname_src.name.split("_")[1];
}else{
selName=selname_src.name;
} if(subselname_src.split("_").length==2) {
subselName=subselname_src.split("_")[0];
subselSuffix="_" + subselname_src.split("_")[1];
}else{
subselName=subselname_src;
} var source = $(selName+selSuffix);
var target = $(subselName+subselSuffix);
target.length=1; var filters = "";
for(j=0; j < source.length; j++) {
if(source[j].selected){
filters = filters + source[j].value + ';';
}
} fillselect(target,subseldata_src,filters);
} //-->
</script>
</head>
<body>
<form name="myform" method="post"> sample1: <select name="sel_1" onChange="driverselect(this,'subsel_1',subopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsel_1" onChange="driverselect(this,'subsubsel_1',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubsel_1">
<option selected value="all">==查看所有==</option>
</select>
<br>
<br>
<br>
<br>
sample2: <select name="sel_2" onChange="driverselect(this,'subsel_2',subopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsel_2" onChange="driverselect(this,'subsubsel_2',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubsel_2">
<option selected value="all">==查看所有==</option>
</select> <br>
<br>
<br>
<br> sample3: <select name="selM_1" MULTIPLE size="5" onChange="driverselect(this,'subselM_1',subopt)" >
<option selected value="all">==查看所有==</option>
</select>
<select name="subselM_1" MULTIPLE size="5" onChange="driverselect(this,'subsubselM_1',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubselM_1" MULTIPLE size="5">
<option selected value="all">==查看所有==</option>
</select>
<br>
<br>
<br>
<br>
sample4: <select name="selM_2" MULTIPLE size="5" onChange="driverselect(this,'subselM_2',subopt)">
<option selected value="">==查看所有==</option>
</select>
<select name="subselM_2" MULTIPLE size="5" onChange="driverselect(this,'subsubselM_2',subsubopt)">
<option selected value="">==查看所有==</option>
</select>
<select name="subsubselM_2" MULTIPLE size="5">
<option selected value="">==查看所有==</option>
</select>
<br>
<br>
<br>
</form> <SCRIPT LANGUAGE="JavaScript">
<!--
//初始化sample1:第一个下拉菜单项
fillselect('sel_1',opt,''); //初始化sample2:第一个下拉菜单项
fillselect('sel_2',opt,''); //初始化sample3:第一个下拉菜单项
fillselect('selM_1',opt,''); //初始化sample4:第一个下拉菜单项
fillselect('selM_2',opt,'');
//-->
</SCRIPT>
</body>
</html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="javascript">
<!--
//测试用的一组数据 //第1级下拉菜单数据
var opt = "一级分类,01;一级分类,02"; //第2级下拉菜单数据
var subopt = "01,二级分类,001;01,二级分类,002;01,二级分类,003;02,二级分类,004;02,二级分类,005;02,二级分类,006"; //第3级下拉菜单数据
var subsubopt = "001,三级分类,0001;002,三级分类,0002;003,三级分类,0003;004,三级分类,0004;005,三级分类,0005;006,三级分类,0006"; /**
* get Element By Id or name.
* 根据一个dom对象的名称返回这个对象,省略了你
* 直接操作document.getElementById的过程.
*
* 例如: $('默认文本框的名称').value
* 就可以取得它的value
*/
function $() {
var elements = new Array(); for (var i = 0; i < arguments.length; i++) {
var element = arguments[i];
if (typeof element == 'string')
element = document.getElementById(element); if (arguments.length == 1)
return element; elements.push(element);
} return elements;
} /*
* 自动填充一个下拉列表,一般用于填充连动菜单的第一项
*
* selname :: 当前下拉选项(this)
* 后缀是为了区分由程序动态生成的如果有多个相同的下拉选项而设
* 置的一个辅助名称后缀('_'下划线作为后缀的分隔符),如果没有这
* 个需要可以忽略 “_后缀”,只要设置一个普通的名称即可.
*
* seldata :: 数据源,菜单的数据项(子下拉选项名称,子下拉选项值,子下拉选项过滤值)
* filter :: 下拉选项的过滤条件
*
*/
function fillselect(selname,seldata,filters) {
var sel = $(selname);
var data = seldata.split(";");
var filtersdata = filters.split(";"); var index = "";
var selkey = "";
var selvalue = ""; if(data.length > 0) { //过滤条件为'all',显示全部,用于连动菜单
if(filtersdata[0] == 'all') {
sel.options[0] = new Option('==查看所有==','all'); for(i=0; i < data.length; i++) {
selkey = data[i].split(",")[1];
selvalue = data[i].split(",")[2];
sel.options[sel.length] = new Option(selkey,selvalue);
}
return;
} sel.options[0] = new Option('==查看所有==','all');
for(i=0;i < data.length; i++) {
//有过滤条件的下拉项(连动菜单数据格式)
if (data[i].split(",").length == 3) {
for(j=0; j < filtersdata.length; j++){
if( (data[i].split(",")[0] == filtersdata[j]) ) {
selkey = data[i].split(",")[1];
selvalue = data[i].split(",")[2];
sel.options[sel.length] = new Option(selkey,selvalue);
}
}
} //无过滤条件的下拉项(非连动菜单数据格式)
if (data[i].split(",").length == 2) {
selkey = data[i].split(",")[0];
selvalue = data[i].split(",")[1];
sel.options[sel.length] = new Option(selkey,selvalue);
} }
if (sel.length == 1) {
sel.options[0] = new Option('==没有选项==','');
}else{
}
}
} /*
* 连动下拉列表的驱动函数
*
* selname_src :: 当前下拉选项(this)
*
* subselname_src :: 所要驱动的子下拉选项的名称(名称结构为: 名称_后缀 或 名称)
* 后缀是为了区分由程序动态生成的如果有多个相同的下拉选项而设
* 置的一个辅助名称后缀('_'下划线作为后缀的分隔符),如果没有这
* 个需要可以忽略 “_后缀”,只要设置一个普通的名称即可.
*
* subseldata_src :: 数据源,被驱动菜单的数据项.
* 数据源格式 : (子下拉选项option过滤值,子下拉选项option内容,子下拉选项option值;......)
*
*/
function driverselect(selname_src,subselname_src,subseldata_src) { var index = "", selkey = "", selvalue = ""; var selName="", selSuffix="";
var subselName="", subselSuffix="";
if(selname_src.name.split("_").length==2) {
selName=selname_src.name.split("_")[0];
selSuffix="_" + selname_src.name.split("_")[1];
}else{
selName=selname_src.name;
} if(subselname_src.split("_").length==2) {
subselName=subselname_src.split("_")[0];
subselSuffix="_" + subselname_src.split("_")[1];
}else{
subselName=subselname_src;
} var source = $(selName+selSuffix);
var target = $(subselName+subselSuffix);
target.length=1; var filters = "";
for(j=0; j < source.length; j++) {
if(source[j].selected){
filters = filters + source[j].value + ';';
}
} fillselect(target,subseldata_src,filters);
} //-->
</script>
</head>
<body>
<form name="myform" method="post"> sample1: <select name="sel_1" onChange="driverselect(this,'subsel_1',subopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsel_1" onChange="driverselect(this,'subsubsel_1',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubsel_1">
<option selected value="all">==查看所有==</option>
</select>
<br>
<br>
<br>
<br>
sample2: <select name="sel_2" onChange="driverselect(this,'subsel_2',subopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsel_2" onChange="driverselect(this,'subsubsel_2',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubsel_2">
<option selected value="all">==查看所有==</option>
</select> <br>
<br>
<br>
<br> sample3: <select name="selM_1" MULTIPLE size="5" onChange="driverselect(this,'subselM_1',subopt)" >
<option selected value="all">==查看所有==</option>
</select>
<select name="subselM_1" MULTIPLE size="5" onChange="driverselect(this,'subsubselM_1',subsubopt)">
<option selected value="all">==查看所有==</option>
</select>
<select name="subsubselM_1" MULTIPLE size="5">
<option selected value="all">==查看所有==</option>
</select>
<br>
<br>
<br>
<br>
sample4: <select name="selM_2" MULTIPLE size="5" onChange="driverselect(this,'subselM_2',subopt)">
<option selected value="">==查看所有==</option>
</select>
<select name="subselM_2" MULTIPLE size="5" onChange="driverselect(this,'subsubselM_2',subsubopt)">
<option selected value="">==查看所有==</option>
</select>
<select name="subsubselM_2" MULTIPLE size="5">
<option selected value="">==查看所有==</option>
</select>
<br>
<br>
<br>
</form> <SCRIPT LANGUAGE="JavaScript">
<!--
//初始化sample1:第一个下拉菜单项
fillselect('sel_1',opt,''); //初始化sample2:第一个下拉菜单项
fillselect('sel_2',opt,''); //初始化sample3:第一个下拉菜单项
fillselect('selM_1',opt,''); //初始化sample4:第一个下拉菜单项
fillselect('selM_2',opt,'');
//-->
</SCRIPT>
</body>
</html>
js中 var subsubsubopt....
html中
<select name="subsubsel_1">这个里加上onChange="driverselect(this,'subsubsubsel_1',subsubsubopt)">然后再加上
<select name="subsubsubsel_1">
<option></option>
</select>齐活