threeSelect(defaults);
});
function threeSelect(config){
var $s1=$(“#”+config.s1);
var $s2=$(“#”+config.s2);
var $s3=$(“#”+config.s3);
var v1=config.v1?config.v1:null;
var v2=config.v2?config.v2:null;
var v3=config.v3?config.v3:null;
$.each(threeSelectData,function(k,v){
appendOptionTo($s1,k,v.val,v1);
});
$s1.change(function(){
$s2.html(“”);
$s3.html(“”);
if(this.selectedIndex==-1) return;
var s1_curr_val = this.options[this.selectedIndex].value;
$.each(threeSelectData,function(k,v){
if(s1_curr_val==v.val){
if(v.items){
$.each(v.items,function(k,v){
appendOptionTo($s2,k,v.val,v2);
});
}
}
});
if($s2[0].options.length==0){appendOptionTo($s2,”…”,””,v2);}
$s2.change();
}).change();
$s2.change(function(){
$s3.html(“”);
var s1_curr_val = $s1[0].options[$s1[0].selectedIndex].value;
if(this.selectedIndex==-1) return;
var s2_curr_val = this.options[this.selectedIndex].value;
$.each(threeSelectData,function(k,v){
if(s1_curr_val==v.val){
if(v.items){
$.each(v.items,function(k,v){
if(s2_curr_val==v.val){
$.each(v.items,function(k,v){
appendOptionTo($s3,k,v,v3);
});
}
});
if($s3[0].options.length==0){appendOptionTo($s3,”…”,””,v3);}
}
}
});
}).change();
function appendOptionTo($o,k,v,d){
var $opt=$(“<option>”).text(k).val(v);
if(v==d){$opt.attr(“selected”, “selected”)}
$opt.appendTo($o);
}
}
</script>
<style type=”text/css” media=”screen”>
select{width:80px;}
</style>
<select id=”Select1″ name=”Select1″></select>
<select id=”Select2″ name=”Select2″></select>
<select id=”Select3″ name=”Select3″></select>
文字没有详细整理！懂点JS的就能看懂！
代码打包下载
