//合并原来的publicjs/ajax/util.js   publicjs/ajax/engine.js
function DWRUtil() { }
DWRUtil.onReturn = function(event, action) {
if (!event) {
event = window.event;
}
if (event && event.keyCode && event.keyCode == 13) {
action();
}
};

DWRUtil.selectRange = function(ele, start, end) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("selectRange() can't find an element with id: " + orig + ".");
return;
}
if (ele.setSelectionRange) {
ele.setSelectionRange(start, end);
}
else if (ele.createTextRange) {
var range = ele.createTextRange();
range.moveStart("character", start);
range.moveEnd("character", end - ele.value.length);
range.select();
}
ele.focus();
};




DWRUtil._getSelection = function(ele) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("selectRange() can't find an element with id: " + orig + ".");
return;
}
return ele.value.substring(ele.selectionStart, ele.selectionEnd);
}

var $;
if (!$ && document.getElementById) {
$ = 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;
}
}
else if (!$ && document.all) {
$ = function() {
var elements = new Array();
for (var i = 0; i < arguments.length; i++) {
var element = arguments[i];
if (typeof element == 'string') {
element = document.all[element];
}
if (arguments.length == 1) {
return element;
}
elements.push(element);
}
return elements;
}
}

DWRUtil.toDescriptiveString = function(data, level, depth) {
var reply = "";
var i = 0;
var value;
var obj;
if (level == null) level = 0;
if (depth == null) depth = 0;
if (data == null) return "null";
if (DWRUtil._isArray(data)) {
if (data.length == 0) reply += "[]";
else {
if (level != 0) reply += "[\n";
else reply = "[";
for (i = 0; i < data.length; i++) {
try {
obj = data[i];
if (obj == null || typeof obj == "function") {
continue;
}
else if (typeof obj == "object") {
if (level > 0) value = DWRUtil.toDescriptiveString(obj, level - 1, depth + 1);
else value = DWRUtil._detailedTypeOf(obj);
}
else {
value = "" + obj;
value = value.replace(/\/n/g, "\\n");
value = value.replace(/\/t/g, "\\t");
}
}
catch (ex) {
value = "" + ex;
}
if (level != 0)  {
reply += DWRUtil._indent(level, depth + 2) + value + ", \n";
}
else {
if (value.length > 13) value = value.substring(0, 10) + "...";
reply += value + ", ";
if (i > 5) {
reply += "...";
break;
}
}
}
if (level != 0) reply += DWRUtil._indent(level, depth) + "]";
else reply += "]";
}
return reply;
}
if (typeof data == "string" || typeof data == "number" || DWRUtil._isDate(data)) {
return data.toString();
}
if (typeof data == "object") {
var typename = DWRUtil._detailedTypeOf(data);
if (typename != "Object")  reply = typename + " ";
if (level != 0) reply += "{\n";
else reply = "{";
var isHtml = DWRUtil._isHTMLElement(data);
for (var prop in data) {
if (isHtml) {

if (prop.toUpperCase() == prop || prop == "title" ||
prop == "lang" || prop == "dir" || prop == "className" ||
prop == "form" || prop == "name" || prop == "prefix" ||
prop == "namespaceURI" || prop == "nodeType" ||
prop == "firstChild" || prop == "lastChild" ||
prop.match(/^offset/)) {
continue;
}
}
value = "";
try {
obj = data[prop];
if (obj == null || typeof obj == "function") {
continue;
}
else if (typeof obj == "object") {
if (level > 0) {
value = "\n";
value += DWRUtil._indent(level, depth + 2);
value = DWRUtil.toDescriptiveString(obj, level - 1, depth + 1);
}
else {
value = DWRUtil._detailedTypeOf(obj);
}
}
else {
value = "" + obj;
value = value.replace(/\/n/g, "\\n");
value = value.replace(/\/t/g, "\\t");
}
}
catch (ex) {
value = "" + ex;
}
if (level == 0 && value.length > 13) value = value.substring(0, 10) + "...";
var propStr = prop;
if (propStr.length > 30) propStr = propStr.substring(0, 27) + "...";
if (level != 0) reply += DWRUtil._indent(level, depth + 1);
reply += prop + ":" + value + ", ";
if (level != 0) reply += "\n";
i++;
if (level == 0 && i > 5) {
reply += "...";
break;
}
}
reply += DWRUtil._indent(level, depth);
reply += "}";
return reply;
}
return data.toString();
};




DWRUtil._indent = function(level, depth) {
var reply = "";
if (level != 0) {
for (var j = 0; j < depth; j++) {
reply += "\u00A0\u00A0";
}
reply += " ";
}
return reply;
};





DWRUtil.useLoadingMessage = function(message) {
var loadingMessage;
if (message) loadingMessage = message;
else loadingMessage = "Loading";
DWREngine.setPreHook(function() {
var disabledZone = $('disabledZone');
if (!disabledZone) {
disabledZone = document.createElement('div');
disabledZone.setAttribute('id', 'disabledZone');
disabledZone.style.position = "absolute";
disabledZone.style.zIndex = "1000";
disabledZone.style.left = "0px";
disabledZone.style.top = "0px";
disabledZone.style.width = "100%";
disabledZone.style.height = "100%";
document.body.appendChild(disabledZone);
var messageZone = document.createElement('div');
messageZone.setAttribute('id', 'messageZone');
messageZone.style.position = "absolute";
messageZone.style.top = "0px";
messageZone.style.right = "0px";
messageZone.style.background = "red";
messageZone.style.color = "white";
messageZone.style.fontFamily = "Arial,Helvetica,sans-serif";
messageZone.style.padding = "4px";
disabledZone.appendChild(messageZone);
var text = document.createTextNode(loadingMessage);
messageZone.appendChild(text);
}
else {
$('messageZone').innerHTML = loadingMessage;
disabledZone.style.visibility = 'visible';
}
});
DWREngine.setPostHook(function() {
$('disabledZone').style.visibility = 'hidden';
});
}





DWRUtil.setValue = function(ele, val, options) {
if (val == null) val = "";
if (options != null) {
if (options.escapeHtml) {
val = val.replace(/&/, "&amp;");
val = val.replace(/'/, "&apos;");
val = val.replace(/</, "&lt;");
val = val.replace(/>/, "&gt;");
}
}

var orig = ele;
var nodes, node, i;

ele = $(ele);

if (ele == null) {
nodes = document.getElementsByName(orig);
if (nodes.length >= 1) {
ele = nodes.item(0);
}
}
if (ele == null) {
DWRUtil.debug("setValue() can't find an element with id/name: " + orig + ".");
return;
}

if (DWRUtil._isHTMLElement(ele, "select")) {
if (ele.type == "select-multiple" && DWRUtil._isArray(val)) {
DWRUtil._selectListItems(ele, val);
}
else {
DWRUtil._selectListItem(ele, val);
}
return;
}

if (DWRUtil._isHTMLElement(ele, "input")) {
if (ele.type == "radio") {

if (nodes == null) nodes = document.getElementsByName(orig);
if (nodes != null && nodes.length > 1) {
for (i = 0; i < nodes.length; i++) {
node = nodes.item(i);
if (node.type == "radio") {
node.checked = (node.value == val);
}
}
}
else {
ele.checked = (val == true);
}
}
else if (ele.type == "checkbox") {
ele.checked = val;
}
else {
ele.value = val;
}
return;
}

if (DWRUtil._isHTMLElement(ele, "textarea")) {
ele.value = val;
return;
}



if (val.nodeType) {
if (val.nodeType == 9  ) {
val = val.documentElement;
}

val = DWRUtil._importNode(ele.ownerDocument, val, true);
ele.appendChild(val);
return;
}


ele.innerHTML = val;
};






DWRUtil._selectListItems = function(ele, val) {


var found  = false;
var i;
var j;
for (i = 0; i < ele.options.length; i++) {
ele.options[i].selected = false;
for (j = 0; j < val.length; j++) {
if (ele.options[i].value == val[j]) {
ele.options[i].selected = true;
}
}
}

if (found) return;

for (i = 0; i < ele.options.length; i++) {
for (j = 0; j < val.length; j++) {
if (ele.options[i].text == val[j]) {
ele.options[i].selected = true;
}
}
}
};






DWRUtil._selectListItem = function(ele, val) {


var found  = false;
var i;
for (i = 0; i < ele.options.length; i++) {
if (ele.options[i].value == val) {
ele.options[i].selected = true;
found = true;
}
else {
ele.options[i].selected = false;
}
}


if (found) return;

for (i = 0; i < ele.options.length; i++) {
if (ele.options[i].text == val) {
ele.options[i].selected = true;
}
else {
ele.options[i].selected = false;
}
}
}





DWRUtil.getValue = function(ele, options) {
if (options == null) {
options = {};
}
var orig = ele;
ele = $(ele);


var nodes = document.getElementsByName(orig);
if (ele == null && nodes.length >= 1) {
ele = nodes.item(0);
}
if (ele == null) {
DWRUtil.debug("getValue() can't find an element with id/name: " + orig + ".");
return "";
}

if (DWRUtil._isHTMLElement(ele, "select")) {


var sel = ele.selectedIndex;
if (sel != -1) {
var reply = ele.options[sel].value;
if (reply == null || reply == "") {
reply = ele.options[sel].text;
}

return reply;
}
else {
return "";
}
}

if (DWRUtil._isHTMLElement(ele, "input")) {
if (ele.type == "radio") {
var node;
for (i = 0; i < nodes.length; i++) {
node = nodes.item(i);
if (node.type == "radio") {
if (node.checked) {
if (nodes.length > 1) return node.value;
else return true;
}
}
}
}
switch (ele.type) {
case "checkbox":
case "check-box":
case "radio":
return ele.checked;
default:
return ele.value;
}
}

if (DWRUtil._isHTMLElement(ele, "textarea")) {
return ele.value;
}

if (options.textContent) {
if (ele.textContent) return ele.textContent;
else if (ele.innerText) return ele.innerText;
}
return ele.innerHTML;
};





DWRUtil.getText = function(ele) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("getText() can't find an element with id: " + orig + ".");
return "";
}

if (!DWRUtil._isHTMLElement(ele, "select")) {
DWRUtil.debug("getText() can only be used with select elements. Attempt to use: " + DWRUtil._detailedTypeOf(ele) + " from  id: " + orig + ".");
return "";
}



var sel = ele.selectedIndex;
if (sel != -1) {
return ele.options[sel].text;
}
else {
return "";
}
};





DWRUtil.setValues = function(map) {
for (var property in map) {

if ($(property) != null || document.getElementsByName(property).length >= 1) {
DWRUtil.setValue(property, map[property]);
}
}
};






DWRUtil.getValues = function(data) {
var ele;
if (typeof data == "string") ele = $(data);
if (DWRUtil._isHTMLElement(data)) ele = data;
if (ele != null) {
if (ele.elements == null) {
alert("getValues() requires an object or reference to a form element.");
return null;
}
var reply = {};
var value;
for (var i = 0; i < ele.elements.length; i++) {
if (ele[i].id != null) value = ele[i].id;
else if (ele[i].value != null) value = ele[i].value;
else value = "element" + i;
reply[value] = DWRUtil.getValue(ele[i]);
}
return reply;
}
else {
for (var property in data) {

if ($(property) != null || document.getElementsByName(property).length >= 1) {
data[property] = DWRUtil.getValue(property);
}
}
return data;
}
};





DWRUtil.addOptions = function(ele, data) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("addOptions() can't find an element with id: " + orig + ".");
return;
}
var useOptions = DWRUtil._isHTMLElement(ele, "select");
var useLi = DWRUtil._isHTMLElement(ele, ["ul", "ol"]);
if (!useOptions && !useLi) {
DWRUtil.debug("addOptions() can only be used with select/ul/ol elements. Attempt to use: " + DWRUtil._detailedTypeOf(ele));
return;
}
if (data == null) return;

var text;
var value;
var opt;
var li;
if (DWRUtil._isArray(data)) {

for (var i = 0; i < data.length; i++) {
if (useOptions) {
if (arguments[2] != null) {
if (arguments[3] != null) {
text = DWRUtil._getValueFrom(data[i], arguments[3]);
value = DWRUtil._getValueFrom(data[i], arguments[2]);
}
else {
value = DWRUtil._getValueFrom(data[i], arguments[2]);
text = value;
}
}
else
{
text = DWRUtil._getValueFrom(data[i], arguments[3]);
value = text;
}
if (text || value) {
opt = new Option(text, value);
ele.options[ele.options.length] = opt;
}
}
else {
li = document.createElement("li");
value = DWRUtil._getValueFrom(data[i], arguments[2]);
if (value != null) {
li.innerHTML = value;
ele.appendChild(li);
}
}
}
}
else if (arguments[3] != null) {
for (var prop in data) {
if (!useOptions) {
alert("DWRUtil.addOptions can only create select lists from objects.");
return;
}
value = DWRUtil._getValueFrom(data[prop], arguments[2]);
text = DWRUtil._getValueFrom(data[prop], arguments[3]);
if (text || value) {
opt = new Option(text, value);
ele.options[ele.options.length] = opt;
}
}
}
else {
for (var prop in data) {
if (!useOptions) {
DWRUtil.debug("DWRUtil.addOptions can only create select lists from objects.");
return;
}
if (typeof data[prop] == "function") {

text = null;
value = null;
}
else if (arguments[2]) {
text = prop;
value = data[prop];
}
else {
text = data[prop];
value = prop;
}
if (text || value) {
opt = new Option(text, value);
ele.options[ele.options.length] = opt;
}
}
}
};




DWRUtil._getValueFrom = function(data, method) {
if (method == null) return data;
else if (typeof method == 'function') return method(data);
else return data[method];
}





DWRUtil.removeAllOptions = function(ele) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("removeAllOptions() can't find an element with id: " + orig + ".");
return;
}
var useOptions = DWRUtil._isHTMLElement(ele, "select");
var useLi = DWRUtil._isHTMLElement(ele, ["ul", "ol"]);
if (!useOptions && !useLi) {
DWRUtil.debug("removeAllOptions() can only be used with select, ol and ul elements. Attempt to use: " + DWRUtil._detailedTypeOf(ele));
return;
}
if (useOptions) {
ele.options.length = 0;
}
else {
while (ele.childNodes.length > 0) {
ele.removeChild(ele.firstChild);
}
}
};





DWRUtil.addRows = function(ele, data, cellFuncs, options) {
var orig = ele;
ele = $(ele);

if (ele == null) {
DWRUtil.debug("addRows() can't find an element with id: " + orig + ".");
return;
}
if (!DWRUtil._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) {
DWRUtil.debug("addRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + DWRUtil._detailedTypeOf(ele));
return;
}
if (!options) options = {};
if (!options.rowCreator) options.rowCreator = DWRUtil._defaultRowCreator;
if (!options.cellCreator) options.cellCreator = DWRUtil._defaultCellCreator;
var tr, rowNum;
if (DWRUtil._isArray(data)) {
for (rowNum = 0; rowNum < data.length; rowNum++) {
options.rowData = data[rowNum];
options.rowIndex = rowNum;
options.rowNum = rowNum;
options.data = null;
options.cellNum = -1;
tr = DWRUtil._addRowInner(cellFuncs, options);
if (tr != null) ele.appendChild(tr);
}
}
else if (typeof data == "object") {
rowNum = 0;
for (var rowIndex in data) {
options.rowData = data[rowIndex];
options.rowIndex = rowIndex;
options.rowNum = rowNum;
options.data = null;
options.cellNum = -1;
tr = DWRUtil._addRowInner(cellFuncs, options);
if (tr != null) ele.appendChild(tr);
rowNum++;
}
}
};




DWRUtil._addRowInner = function(cellFuncs, options) {
var tr = options.rowCreator(options);
if (tr == null) return null;
for (var cellNum = 0; cellNum < cellFuncs.length; cellNum++) {
var func = cellFuncs[cellNum];
var reply = func(options.rowData, options);
options.data = reply;
options.cellNum = cellNum;
var td = options.cellCreator(options);
if (td != null) {
if (reply != null) {
if (DWRUtil._isHTMLElement(reply)) td.appendChild(reply);
else td.innerHTML = reply;
}
tr.appendChild(td);
}
}
return tr;
};




DWRUtil._defaultRowCreator = function(options) {
return document.createElement("tr");
};




DWRUtil._defaultCellCreator = function(options) {
return document.createElement("td");
};





DWRUtil.removeAllRows = function(ele) {
var orig = ele;
ele = $(ele);
if (ele == null) {
DWRUtil.debug("removeAllRows() can't find an element with id: " + orig + ".");
return;
}
if (!DWRUtil._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) {
DWRUtil.debug("removeAllRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + DWRUtil._detailedTypeOf(ele));
return;
}
while (ele.childNodes.length > 0) {
ele.removeChild(ele.firstChild);
}
};







DWRUtil._isHTMLElement = function(ele, nodeName) {
if (ele == null || typeof ele != "object" || ele.nodeName == null) {
return false;
}

if (nodeName != null) {
var test = ele.nodeName.toLowerCase();

if (typeof nodeName == "string") {
return test == nodeName.toLowerCase();
}

if (DWRUtil._isArray(nodeName)) {
var match = false;
for (var i = 0; i < nodeName.length && !match; i++) {
if (test == nodeName[i].toLowerCase()) {
match =  true;
}
}
return match;
}

DWRUtil.debug("DWRUtil._isHTMLElement was passed test node name that is neither a string or array of strings");
return false;
}

return true;
};




DWRUtil._detailedTypeOf = function(x) {
var reply = typeof x;
if (reply == "object") {
reply = Object.prototype.toString.apply(x);
reply = reply.substring(8, reply.length-1);
}
return reply;
};




DWRUtil._isArray = function(data) {
return (data && data.join) ? true : false;
};




DWRUtil._isDate = function(data) {
return (data && data.toUTCString) ? true : false;
};




DWRUtil._importNode = function(doc, importedNode, deep) {
var newNode;

if (importedNode.nodeType == 1  ) {
newNode = doc.createElement(importedNode.nodeName);

for (var i = 0; i < importedNode.attributes.length; i++) {
var attr = importedNode.attributes[i];
if (attr.nodeValue != null && attr.nodeValue != '') {
newNode.setAttribute(attr.name, attr.nodeValue);
}
}

if (typeof importedNode.style != "undefined") {
newNode.style.cssText = importedNode.style.cssText;
}
}
else if (importedNode.nodeType == 3  ) {
newNode = doc.createTextNode(importedNode.nodeValue);
}

if (deep && importedNode.hasChildNodes()) {
for (i = 0; i < importedNode.childNodes.length; i++) {
newNode.appendChild(DWRUtil._importNode(doc, importedNode.childNodes[i], true));
}
}

return newNode;
}




DWRUtil.debug = function(message) {
alert(message);
}























if (DWREngine == null) var DWREngine = {};





DWREngine.setErrorHandler = function(handler) {
DWREngine._errorHandler = handler;
};





DWREngine.setWarningHandler = function(handler) {
DWREngine._warningHandler = handler;
};





DWREngine.setTimeout = function(timeout) {
DWREngine._timeout = timeout;
};





DWREngine.setPreHook = function(handler) {
DWREngine._preHook = handler;
};





DWREngine.setPostHook = function(handler) {
DWREngine._postHook = handler;
};


DWREngine.XMLHttpRequest = 1;


DWREngine.IFrame = 2;






DWREngine.setMethod = function(newMethod) {
if (newMethod != DWREngine.XMLHttpRequest && newMethod != DWREngine.IFrame) {
DWREngine._handleError("Remoting method must be one of DWREngine.XMLHttpRequest or DWREngine.IFrame");
return;
}
DWREngine._method = newMethod;
};





DWREngine.setVerb = function(verb) {
if (verb != "GET" && verb != "POST") {
DWREngine._handleError("Remoting verb must be one of GET or POST");
return;
}
DWREngine._verb = verb;
};





DWREngine.setOrdered = function(ordered) {
DWREngine._ordered = ordered;
};





DWREngine.setAsync = function(async) {
DWREngine._async = async;
};





DWREngine.setTextHtmlHandler = function(handler) {
DWREngine._textHtmlHandler = handler;
}





DWREngine.defaultMessageHandler = function(message) {
if (typeof message == "object" && message.name == "Error" && message.description) {
//alert("Error: " + message.description);
}
else {

if (message.toString().indexOf("0x80040111") == -1) {
//alert(message);
}
}
};





DWREngine.beginBatch = function() {
if (DWREngine._batch) {
DWREngine._handleError("Batch already started.");
return;
}

DWREngine._batch = {
map:{ callCount:0 },
paramCount:0,
ids:[],
preHooks:[],
postHooks:[]
};
};





DWREngine.endBatch = function(options) {
var batch = DWREngine._batch;
if (batch == null) {
DWREngine._handleError("No batch in progress.");
return;
}

if (options && options.preHook) batch.preHooks.unshift(options.preHook);
if (options && options.postHook) batch.postHooks.push(options.postHook);
if (DWREngine._preHook) batch.preHooks.unshift(DWREngine._preHook);
if (DWREngine._postHook) batch.postHooks.push(DWREngine._postHook);

if (batch.method == null) batch.method = DWREngine._method;
if (batch.verb == null) batch.verb = DWREngine._verb;
if (batch.async == null) batch.async = DWREngine._async;
if (batch.timeout == null) batch.timeout = DWREngine._timeout;

batch.completed = false;


DWREngine._batch = null;



if (!DWREngine._ordered) {
DWREngine._sendData(batch);
DWREngine._batches[DWREngine._batches.length] = batch;
}
else {
if (DWREngine._batches.length == 0) {

DWREngine._sendData(batch);
DWREngine._batches[DWREngine._batches.length] = batch;
}
else {

DWREngine._batchQueue[DWREngine._batchQueue.length] = batch;
}
}
};






DWREngine._errorHandler = DWREngine.defaultMessageHandler;


DWREngine._warningHandler = null;


DWREngine._preHook = null;


DWREngine._postHook = null;


DWREngine._batches = [];


DWREngine._batchQueue = [];


DWREngine._handlersMap = {};


DWREngine._method = DWREngine.XMLHttpRequest;


DWREngine._verb = "POST";


DWREngine._ordered = false;


DWREngine._async = true;


DWREngine._batch = null;


DWREngine._timeout = 0;


DWREngine._DOMDocument = ["Msxml2.DOMDocument.6.0", "Msxml2.DOMDocument.5.0", "Msxml2.DOMDocument.4.0", "Msxml2.DOMDocument.3.0", "MSXML2.DOMDocument", "MSXML.DOMDocument", "Microsoft.XMLDOM"];


DWREngine._XMLHTTP = ["Msxml2.XMLHTTP.6.0", "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"];










DWREngine._execute = function(path, scriptName, methodName, vararg_params) {
var singleShot = false;
if (DWREngine._batch == null) {
DWREngine.beginBatch();
singleShot = true;
}

var args = [];
for (var i = 0; i < arguments.length - 3; i++) {
args[i] = arguments[i + 3];
}

if (DWREngine._batch.path == null) {
DWREngine._batch.path = path;
}
else {
if (DWREngine._batch.path != path) {
DWREngine._handleError("Can't batch requests to multiple DWR Servlets.");
return;
}
}


var params;
var callData;
var firstArg = args[0];
var lastArg = args[args.length - 1];

if (typeof firstArg == "function") {
callData = { callback:args.shift() };
params = args;
}
else if (typeof lastArg == "function") {
callData = { callback:args.pop() };
params = args;
}
else if (lastArg != null && typeof lastArg == "object" && lastArg.callback != null && typeof lastArg.callback == "function") {
callData = args.pop();
params = args;
}
else if (firstArg == null) {



if (lastArg == null && args.length > 2) {
DWREngine._handleError("Ambiguous nulls at start and end of parameter list. Which is the callback function?");
}
callData = { callback:args.shift() };
params = args;
}
else if (lastArg == null) {
callData = { callback:args.pop() };
params = args;
}
else {
DWREngine._handleError("Missing callback function or metadata object.");
return;
}


var random = Math.floor(Math.random() * 10001);
var id = (random + "_" + new Date().getTime()).toString();
var prefix = "c" + DWREngine._batch.map.callCount + "-";
DWREngine._batch.ids.push(id);


if (callData.method != null) {
DWREngine._batch.method = callData.method;
delete callData.method;
}
if (callData.verb != null) {
DWREngine._batch.verb = callData.verb;
delete callData.verb;
}
if (callData.async != null) {
DWREngine._batch.async = callData.async;
delete callData.async;
}
if (callData.timeout != null) {
DWREngine._batch.timeout = callData.timeout;
delete callData.timeout;
}


if (callData.preHook != null) {
DWREngine._batch.preHooks.unshift(callData.preHook);
delete callData.preHook;
}
if (callData.postHook != null) {
DWREngine._batch.postHooks.push(callData.postHook);
delete callData.postHook;
}


if (callData.errorHandler == null) callData.errorHandler = DWREngine._errorHandler;
if (callData.warningHandler == null) callData.warningHandler = DWREngine._warningHandler;


DWREngine._handlersMap[id] = callData;

DWREngine._batch.map[prefix + "scriptName"] = scriptName;
DWREngine._batch.map[prefix + "methodName"] = methodName;
DWREngine._batch.map[prefix + "id"] = id;


for (i = 0; i < params.length; i++) {
DWREngine._serializeAll(DWREngine._batch, [], params[i], prefix + "param" + i);
}


DWREngine._batch.map.callCount++;
if (singleShot) {
DWREngine.endBatch();
}
};


DWREngine._sendData = function(batch) {

if (batch.map.callCount == 0) return;

for (var i = 0; i < batch.preHooks.length; i++) {
batch.preHooks[i]();
}
batch.preHooks = null;

if (batch.timeout && batch.timeout != 0) {
batch.interval = setInterval(function() { DWREngine._abortRequest(batch); }, batch.timeout);
}

var urlPostfix;
if (batch.map.callCount == 1) {
urlPostfix = batch.map["c0-scriptName"] + "." + batch.map["c0-methodName"] + ".dwr";
}
else {
urlPostfix = "Multiple." + batch.map.callCount + ".dwr";
}


if (batch.method == DWREngine.XMLHttpRequest) {
if (window.XMLHttpRequest) {
batch.req = new XMLHttpRequest();
}

else if (window.ActiveXObject && !(navigator.userAgent.indexOf("Mac") >= 0 && navigator.userAgent.indexOf("MSIE") >= 0)) {
batch.req = DWREngine._newActiveXObject(DWREngine._XMLHTTP);
}
}

var query = "";
var prop;


if (batch.req) {
batch.map.xml = "true";

if (batch.async) {
batch.req.onreadystatechange = function() { DWREngine._stateChange(batch); };
}

var indexSafari = navigator.userAgent.indexOf("Safari/");
if (indexSafari >= 0) {
var version = navigator.userAgent.substring(indexSafari + 7);
if (parseInt(version, 10) < 400) batch.verb == "GET";
}
if (batch.verb == "GET") {



batch.map.callCount = "" + batch.map.callCount;

for (prop in batch.map) {
var qkey = encodeURIComponent(prop);
var qval = encodeURIComponent(batch.map[prop]);
if (qval == "") DWREngine._handleError("Found empty qval for qkey=" + qkey);
query += qkey + "=" + qval + "&";
}

//try {
batch.req.open("GET", batch.path + "/exec/" + urlPostfix + "?" + query, batch.async);
batch.req.send(null);
if (!batch.async) DWREngine._stateChange(batch);
//}
//catch (ex) {
//DWREngine._handleMetaDataError(null, ex);
//}
}
else {
for (prop in batch.map) {
if (typeof batch.map[prop] != "function") {
query += prop + "=" + batch.map[prop] + "\n";
}
}

//try {
batch.req.open("POST", batch.path + "/exec/" + urlPostfix, batch.async);
batch.req.setRequestHeader('Content-Type', 'text/plain');
batch.req.send(query);
if (!batch.async) DWREngine._stateChange(batch);
//}
//catch (ex) {
//DWREngine._handleMetaDataError(null, ex);
//}
}
}
else {
batch.map.xml = "false";
var idname = "dwr-if-" + batch.map["c0-id"];

batch.div = document.createElement("div");
batch.div.innerHTML = "<iframe src='javascript:void(0)' frameborder='0' width='0' height='0' id='" + idname + "' name='" + idname + "'></iframe>";
document.body.appendChild(batch.div);
batch.iframe = document.getElementById(idname);
batch.iframe.setAttribute("style", "width:0px; height:0px; border:0px;");

if (batch.verb == "GET") {
for (prop in batch.map) {
if (typeof batch.map[prop] != "function") {
query += encodeURIComponent(prop) + "=" + encodeURIComponent(batch.map[prop]) + "&";
}
}
query = query.substring(0, query.length - 1);

batch.iframe.setAttribute("src", batch.path + "/exec/" + urlPostfix + "?" + query);
document.body.appendChild(batch.iframe);
}
else {
batch.form = document.createElement("form");
batch.form.setAttribute("id", "dwr-form");
batch.form.setAttribute("action", batch.path + "/exec" + urlPostfix);
batch.form.setAttribute("target", idname);
batch.form.target = idname;
batch.form.setAttribute("method", "POST");
for (prop in batch.map) {
var formInput = document.createElement("input");
formInput.setAttribute("type", "hidden");
formInput.setAttribute("name", prop);
formInput.setAttribute("value", batch.map[prop]);
batch.form.appendChild(formInput);
}
document.body.appendChild(batch.form);
batch.form.submit();
}
}
};


DWREngine._stateChange = function(batch) {
if (!batch.completed && batch.req.readyState == 4) {
//try {
var reply = batch.req.responseText;

if (reply == null || reply == "") {
DWREngine._handleMetaDataWarning(null, "No data received from server");
}
else {
var contentType = batch.req.getResponseHeader("Content-Type");
if (!contentType.match(/^text\/plain/) && !contentType.match(/^text\/javascript/)) {
if (DWREngine._textHtmlHandler && contentType.match(/^text\/html/)) {
DWREngine._textHtmlHandler();
}
else {
DWREngine._handleMetaDataWarning(null, "Invalid content type from server: '" + contentType + "'");
}
}
else {



if (reply.search("DWREngine._handle") == -1) {
DWREngine._handleMetaDataWarning(null, "Invalid reply from server");
}
else {
eval(reply);
}
}
}


DWREngine._clearUp(batch);
//}
//catch (ex) {
//if (ex == null) ex = "Unknown error occured";
//DWREngine._handleMetaDataWarning(null, ex);
//}
//finally {



if (DWREngine._batchQueue.length != 0) {
var sendbatch = DWREngine._batchQueue.shift();
DWREngine._sendData(sendbatch);
DWREngine._batches[DWREngine._batches.length] = sendbatch;
}
//}
}
};






DWREngine._handleResponse = function(id, reply) {

var handlers = DWREngine._handlersMap[id];
DWREngine._handlersMap[id] = null;

if (handlers) {


//try {
if (handlers.callback) handlers.callback(reply);
}
//catch (ex) {
//DWREngine._handleMetaDataError(handlers, ex);
//}
}


if (DWREngine._method == DWREngine.IFrame) {
var responseBatch = DWREngine._batches[DWREngine._batches.length-1];

if (responseBatch.map["c"+(responseBatch.map.callCount-1)+"-id"] == id) {
DWREngine._clearUp(responseBatch);
}
}
//};


DWREngine._handleServerError = function(id, error) {

var handlers = DWREngine._handlersMap[id];
DWREngine._handlersMap[id] = null;

if (error.message) DWREngine._handleMetaDataError(handlers, error.message, error);
else DWREngine._handleMetaDataError(handlers, error);
};


DWREngine._eval = function(script) {
return eval(script);
}


DWREngine._abortRequest = function(batch) {
if (batch && !batch.completed) {
clearInterval(batch.interval);
DWREngine._clearUp(batch);
if (batch.req) batch.req.abort();

var handlers;
for (var i = 0; i < batch.ids.length; i++) {
handlers = DWREngine._handlersMap[batch.ids[i]];
DWREngine._handleMetaDataError(handlers, "Timeout");
}
}
};


DWREngine._clearUp = function(batch) {
if (batch.completed) {
DWREngine._handleError("Double complete");
return;
}


if (batch.div) batch.div.parentNode.removeChild(batch.div);
if (batch.iframe) batch.iframe.parentNode.removeChild(batch.iframe);
if (batch.form) batch.form.parentNode.removeChild(batch.form);


if (batch.req) delete batch.req;

for (var i = 0; i < batch.postHooks.length; i++) {
batch.postHooks[i]();
}
batch.postHooks = null;


for (var i = 0; i < DWREngine._batches.length; i++) {
if (DWREngine._batches[i] == batch) {
DWREngine._batches.splice(i, 1);
break;
}
}

batch.completed = true;
};


DWREngine._handleError = function(reason, ex) {
if (DWREngine._errorHandler) DWREngine._errorHandler(reason, ex);
};


DWREngine._handleWarning = function(reason, ex) {
if (DWREngine._warningHandler) DWREngine._warningHandler(reason, ex);
};


DWREngine._handleMetaDataError = function(handlers, reason, ex) {
if (handlers && typeof handlers.errorHandler == "function") handlers.errorHandler(reason, ex);
else DWREngine._handleError(reason, ex);
};


DWREngine._handleMetaDataWarning = function(handlers, reason, ex) {
if (handlers && typeof handlers.warningHandler == "function") handlers.warningHandler(reason, ex);
else DWREngine._handleWarning(reason, ex);
};








DWREngine._serializeAll = function(batch, referto, data, name) {
if (data == null) {
batch.map[name] = "null:null";
return;
}

switch (typeof data) {
case "boolean":
batch.map[name] = "boolean:" + data;
break;
case "number":
batch.map[name] = "number:" + data;
break;
case "string":
batch.map[name] = "string:" + encodeURIComponent(data);
break;
case "object":
if (data instanceof String) batch.map[name] = "String:" + encodeURIComponent(data);
else if (data instanceof Boolean) batch.map[name] = "Boolean:" + data;
else if (data instanceof Number) batch.map[name] = "Number:" + data;
else if (data instanceof Date) batch.map[name] = "Date:" + data.getTime();
else if (data instanceof Array) batch.map[name] = DWREngine._serializeArray(batch, referto, data, name);
else batch.map[name] = DWREngine._serializeObject(batch, referto, data, name);
break;
case "function":

break;
default:
DWREngine._handleWarning("Unexpected type: " + typeof data + ", attempting default converter.");
batch.map[name] = "default:" + data;
break;
}
};


DWREngine._lookup = function(referto, data, name) {
var lookup;

for (var i = 0; i < referto.length; i++) {
if (referto[i].data == data) {
lookup = referto[i];
break;
}
}
if (lookup) return "reference:" + lookup.name;
referto.push({ data:data, name:name });
return null;
};


DWREngine._serializeObject = function(batch, referto, data, name) {
var ref = DWREngine._lookup(referto, data, name);
if (ref) return ref;



if (data.nodeName && data.nodeType) {
return DWREngine._serializeXml(batch, referto, data, name);
}


var reply = "Object:{";
var element;
for (element in data) {
batch.paramCount++;
var childName = "c" + DWREngine._batch.map.callCount + "-e" + batch.paramCount;
DWREngine._serializeAll(batch, referto, data[element], childName);

reply += encodeURIComponent(element) + ":reference:" + childName + ", ";
}

if (reply.substring(reply.length - 2) == ", ") {
reply = reply.substring(0, reply.length - 2);
}
reply += "}";

return reply;
};


DWREngine._serializeXml = function(batch, referto, data, name) {
var ref = DWREngine._lookup(referto, data, name);
if (ref) return ref;

var output;
if (window.XMLSerializer) output = new XMLSerializer().serializeToString(data);
else output = data.toXml;

return "XML:" + encodeURIComponent(output);
};


DWREngine._serializeArray = function(batch, referto, data, name) {
var ref = DWREngine._lookup(referto, data, name);
if (ref) return ref;

var reply = "Array:[";
for (var i = 0; i < data.length; i++) {
if (i != 0) reply += ",";
batch.paramCount++;
var childName = "c" + DWREngine._batch.map.callCount + "-e" + batch.paramCount;
DWREngine._serializeAll(batch, referto, data[i], childName);
reply += "reference:";
reply += childName;
}
reply += "]";

return reply;
};


DWREngine._unserializeDocument = function(xml) {
var dom;
if (window.DOMParser) {
var parser = new DOMParser();
dom = parser.parseFromString(xml, "text/xml");
if (!dom.documentElement || dom.documentElement.tagName == "parsererror") {
var message = dom.documentElement.firstChild.data;
message += "\n" + dom.documentElement.firstChild.nextSibling.firstChild.data;
throw message;
}
return dom;
}
else if (window.ActiveXObject) {
dom = DWREngine._newActiveXObject(DWREngine._DOMDocument);
dom.loadXML(xml);
return dom;
}
else {
var div = document.createElement("div");
div.innerHTML = xml;
return div;
}
};





DWREngine._newActiveXObject = function(axarray) {
var returnValue;
for (var i = 0; i < axarray.length; i++) {
try {
returnValue = new ActiveXObject(axarray[i]);
break;
}
catch (ex) {   }
}
return returnValue;
};


if (typeof window.encodeURIComponent === 'undefined') {
DWREngine._utf8 = function(wide) {
wide = "" + wide;
var c;
var s;
var enc = "";
var i = 0;
while (i < wide.length) {
c = wide.charCodeAt(i++);

if (c >= 0xDC00 && c < 0xE000) continue;
if (c >= 0xD800 && c < 0xDC00) {
if (i >= wide.length) continue;
s = wide.charCodeAt(i++);
if (s < 0xDC00 || c >= 0xDE00) continue;
c = ((c - 0xD800) << 10) + (s - 0xDC00) + 0x10000;
}

if (c < 0x80) {
enc += String.fromCharCode(c);
}
else if (c < 0x800) {
enc += String.fromCharCode(0xC0 + (c >> 6), 0x80 + (c & 0x3F));
}
else if (c < 0x10000) {
enc += String.fromCharCode(0xE0 + (c >> 12), 0x80 + (c >> 6 & 0x3F), 0x80 + (c & 0x3F));
}
else {
enc += String.fromCharCode(0xF0 + (c >> 18), 0x80 + (c >> 12 & 0x3F), 0x80 + (c >> 6 & 0x3F), 0x80 + (c & 0x3F));
}
}
return enc;
}

DWREngine._hexchars = "0123456789ABCDEF";

DWREngine._toHex = function(n) {
return DWREngine._hexchars.charAt(n >> 4) + DWREngine._hexchars.charAt(n & 0xF);
}

DWREngine._okURIchars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-";

window.encodeURIComponent = function(s)  {
s = DWREngine._utf8(s);
var c;
var enc = "";
for (var i= 0; i<s.length; i++) {
if (DWREngine._okURIchars.indexOf(s.charAt(i)) == -1) {
enc += "%" + DWREngine._toHex(s.charCodeAt(i));
}
else {
enc += s.charAt(i);
}
}
return enc;
}
}


if (typeof Array.prototype.splice === 'undefined') {
Array.prototype.splice = function(ind, cnt)
{
if (arguments.length == 0) return ind;
if (typeof ind != "number") ind = 0;
if (ind < 0) ind = Math.max(0,this.length + ind);
if (ind > this.length) {
if (arguments.length > 2) ind = this.length;
else return [];
}
if (arguments.length < 2) cnt = this.length-ind;

cnt = (typeof cnt == "number") ? Math.max(0, cnt) : 0;
removeArray = this.slice(ind, ind + cnt);
endArray = this.slice(ind + cnt);
this.length = ind;

for (var i = 2; i < arguments.length; i++) this[this.length] = arguments[i];
for (i = 0; i < endArray.length; i++) this[this.length] = endArray[i];

return removeArray;
}
}


if (typeof Array.prototype.shift === 'undefined') {
Array.prototype.shift = function(str) {
var val = this[0];
for (var i = 1; i < this.length; ++i) this[i - 1] = this[i];
this.length--;
return val;
}
}


if (typeof Array.prototype.unshift === 'undefined') {
Array.prototype.unshift = function() {
var i = unshift.arguments.length;
for (var j = this.length - 1; j >= 0; --j) this[j + i] = this[j];
for (j = 0; j < i; ++j) this[j] = unshift.arguments[j];
}
}


if (typeof Array.prototype.push === 'undefined') {
Array.prototype.push = function() {
var sub = this.length;
for (var i = 0; i < push.arguments.length; ++i) {
this[sub] = push.arguments[i];
sub++;
}
}
}


if (typeof Array.prototype.pop === 'undefined') {
Array.prototype.pop = function() {
var lastElement = this[this.length - 1];
this.length--;
return lastElement;
}
}