function get(id,callback) {
	$.get(APP.PATH+"/sysRegions/find?id="+id,function(data){
		callback(data);
	})
}

//下一个级别
function nextLeve(leve) {
	var tmp = leve.substring(leve.length-1);
	var intTmp = parseInt(tmp)+1;
	return intTmp;
}


//移除当前列表的后续选项
function remove(leve) {
	var max = 3;
	var nextLeveInt = nextLeve(leve);
	for(var i=nextLeveInt;i<=max;i++) {
		$("#leve"+i).children().first().nextAll().remove();
	}
}

function handler(data,leveName) {
	var leve =data==null ? [] : data.records;
	var nextLeveInt = nextLeve(leveName);
	if(leve!=null && leve.length>0) {
		remove(leveName);
		for(var i=0;i<leve.length;i++) {
			$("#leve"+nextLeveInt).append("<option id="+leve[i].id+" value="+leve[i].id+">"+leve[i].name+"</option>")
		}
	}
}

function handlerSelect(data,leveName,selectedId) {
	//console.log(leveName,selectedId)
	//if(selectedId===undefined)return;
	var leve =data==null ? [] : data.records;
	var nextLeveInt = nextLeve(leveName);
	if(leve!=null && leve.length>0) {
		remove(leveName);
		for(var i=0;i<leve.length;i++) {
			var tag = "";
			if(leve[i].id==selectedId){
				tag = "selected='selected'";
			}
			//console.log(tag,selectedId)
			//console.log(leve[i].id,selectedId,tag)
			$("#leve"+nextLeveInt).append("<option "+tag+" value="+leve[i].id+">"+leve[i].name+"</option>")
		}
	}
}

$(function(){

	$(".leve").bind("change",function(){
		var leveId = $(this).attr("id");
		var leves = ["leve1","leve2","leve3"];
		var thisVal = $(this).val();
		var ZERO = "0";
		
		if((leveId === leves[0] || leveId===leves[1]) &&thisVal===ZERO){
			remove(leveId);
		}else{
			//获取数据
			get(thisVal,function(data){
				handler(data,leveId);
			})
		}
		
	});
	
})