很不错的资源
/*** 此函数接受一个对象列表，数目不定,opration:表是触发的事件
* eg：change；fnClear:表示初始化下拉框。var_args表示多个下拉框...
*/
function bindSelects(operation, initSelectObj, loadShow, var_args){
//每个argument对象都有一个 change事件
//change事件会触发：此argument之后的对象清空，紧跟此对象的后一对象发送ajax请求
var elementList = [];
for (var i = 3; arguments; i++)
{
elementList = arguments;
}
for (var i = 0; elementList; i++)
{
(function(k)
{
elementList.bind(operation, function(){
selectType = elementList.attr("name");
//其后的对象进行某个操作
for (var j = k+1; elementList; j++)
{
if (initSelectObj && initSelectObj.constructor===Function)
{
if(elementList.val() == "")
{
initSelectObj(elementList,elementList.data(SELECT_KEY));
LOAD_KEYS.hide();
}
else{
initSelectObj(elementList,elementList.data(SELECT_KEY));
}
}
}
//紧跟对象发送ajax
if (elementList)
{
if(elementList.val() != "")
{
//从页面缓存中取出
if(elementList.data(elementList.val()))
{
var data = elementList.data(elementList.val());
var key=LIST_KEYS;
var jsonKey = ;
addContentToSelect(data,jsonKey,elementList);
}
else
{
//从缓存中取出数据
if (fnAjax && fnAjax.constructor===Function)
{
loadShow(LOAD_KEYS);
fnAjax(elementList.data(SELECT_KEY),LIST_KEYS,LOAD_KEYS,elementList,selectType);
}
}
}
}
});
})(i);
}
}
function fnAjax(selectObj,jsonKey,loadImg,select,selectType){
getParamVal();
var LIST_KEYS=;
$.ajax({
url : "SelectServlet",
type : 'POST',
data : {
"langType":langTypeVal,
"doc_type_Val" : doc_type_Val,
"productLine":productLineVal,
"productFamily":productFamilyVal,
"product":productVal,
"docClass1" :docClass1Val,
"docClass2" :docClass2Val,
"productVersion" :productVersionVal,
"selectType" :selectType
},
dataType : 'json',
success : function(data){
addContentToSelect(data,LIST_KEYS,selectObj);
loadImg.hide();
//加入缓存
$(selectObj).data(select.val(),data);
}
});
}
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