js实现的复选框选中时的批量操作

var checkedList = [];	// save for all checked  box
var tmpHotel = new Hotel();
tmpHotel.setHotelId("${item.key}");
checkedList[tmpHotel.getHotelId()] = [];  //将每个hotelId对应的行也初始化为一个数组

<td class="htbl_td1_'+tr_border+'">
<input onclick="modifyCheckedList(\''+ hotels[i].getHotelId() +'\', this, '+ hotels[i].getRooms(rTypeCnt).getInternalId(j) +');" type="checkbox" />
</td>;

//点击每行(room行)的复选框时，将该行对应的internalId放入二维数组checkedList[hotelId][checkedList[hotelId].length] 项中
function modifyCheckedList(hotelId, chk, internalId) {

if ( chk.checked == true) checkedList[hotelId][checkedList[hotelId].length] = internalId;

for (var i=0; i<checkedList[hotelId].length; i++) {
if (checkedList[hotelId][i] == internalId) {
if (chk.checked == true) {
// Do nothing here
} else {
checkedList[hotelId][i] = 0;
// remove the internalid form checkedList array
setDeleteLinkVisible(hotelId);
setBatchUpdateVisible(hotelId);
return;
}
}
if (checkedList[hotelId][i] == 0) {
if (chk.checked == true) { checkedList[hotelId][i] = internalId; }
setDeleteLinkVisible(hotelId);
setBatchUpdateVisible(hotelId);
return;
}
}
setDeleteLinkVisible(hotelId);
setBatchUpdateVisible(hotelId);
}

//显示批量操作按钮
function setBatchUpdateVisible(hotelId) {
var noTick = true;
for (var i=0; i<checkedList[hotelId].length; i++) {
if (parseInt(checkedList[hotelId][i]) != 0) {
noTick = false;
break;
}
}
if (noTick == true) {
$("batchUpdateLink" + hotelId).style.display = "none";
} else {
$("batchUpdateLink" + hotelId).style.display = "";
}
}

//点击批量操作按钮
//从checkedList[hotelId][..]中读取选中的复选框项，将每行对应的internalId放入一个String类型的变量updateList中,格式如 95599,96887,77845
//在Java类中分割即可获得选中的复选框项，如：String[] tariffIdArr = request.getParameter("updateList").split(",");
function doBatchUpdate(hotelId) {
if (checkedList[hotelId].length == 0) return;
var noTick = true;
for (var i=0; i<checkedList[hotelId].length; i++) {
if (parseInt(checkedList[hotelId][i]) != 0) { noTick = false; break; }
}
if (noTick == true) { return; }
if(!confirm("Do you confirm update?")) return;

var updateList = "";
for(var i=0; i<checkedList[hotelId].length-1; i++) {
updateList += checkedList[hotelId][i] + ",";
}
updateList += checkedList[hotelId][checkedList[hotelId].length-1];
var url = "<%=basePath%>tariffBatchUpdate.do?hotelId="+hotelId+"&timeStamp=" + new Date().getTime();
var formBatchUpdate = document.createElement("FORM"); //创建一个form
formBatchUpdate.setAttribute("action", url);
formBatchUpdate.setAttribute("method","post");
var updateListInput = document.createElement("input"); //创建一个input表单
updateListInput.setAttribute("name","updateList");
updateListInput.setAttribute("type","hidden");
updateListInput.setAttribute("value",updateList);
formBatchUpdate.appendChild(updateListInput);   //将表单加入Form中
document.body.appendChild(formBatchUpdate);     //将Form加入body中
formBatchUpdate.submit();
}