return;    }    for (var prop in data) {      value = dwr.util._getValueFrom(data[prop], arguments[2]);      text = dwr.util._getValueFrom(data[prop], arguments[3]);      if (text || value) ele.options[ele.options.length] = new Option(text, value);    }  }  else {    if (!useOptions) {      dwr.util._debug("dwr.util.addOptions can only create select lists from objects.");      return;    }    for (var prop in data) {      if (typeof data[prop] != "function") {        if (arguments[2]) ele.options[ele.options.length] = new Option(prop, data[prop]);        else ele.options[ele.options.length] = new Option(data[prop], prop);      }    }  }  // All error routes through this function result in a return, so highlight now  dwr.util.highlight(ele, null); // TODO: forward options instead of null };/** * @private Get the data from an array function for dwr.util.addOptions */dwr.util._getValueFrom = function(data, method) {  if (method == null) return data;  else if (typeof method == 'function') return method(data);  else return data[method];};/** * Remove all the options from a select list (specified by id) * @see http://getahead.ltd.uk/dwr/browser/lists */dwr.util.removeAllOptions = function(ele) {  ele = dwr.util._getElementById(ele, "removeAllOptions()");  if (ele == null) return;  var useOptions = dwr.util._isHTMLElement(ele, "select");  var useLi = dwr.util._isHTMLElement(ele, ["ul", "ol"]);  if (!useOptions && !useLi) {    dwr.util._debug("removeAllOptions() can only be used with select, ol and ul elements. Attempt to use: " + dwr.util._detailedTypeOf(ele));    return;  }  if (useOptions) {    ele.options.length = 0;  }  else {    while (ele.childNodes.length > 0) {      ele.removeChild(ele.firstChild);    }  }};/** * Create rows inside a the table, tbody, thead or tfoot element (given by id). * @see http://getahead.ltd.uk/dwr/browser/tables */dwr.util.addRows = function(ele, data, cellFuncs, options) {  ele = dwr.util._getElementById(ele, "addRows()");  if (ele == null) return;  if (!dwr.util._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) {    dwr.util._debug("addRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + dwr.util._detailedTypeOf(ele));    return;  }  if (!options) options = {};  if (!options.rowCreator) options.rowCreator = dwr.util._defaultRowCreator;  if (!options.cellCreator) options.cellCreator = dwr.util._defaultCellCreator;  var tr, rowNum;  if (dwr.util._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 = dwr.util._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 = dwr.util._addRowInner(cellFuncs, options);      if (tr != null) ele.appendChild(tr);      rowNum++;    }  }  dwr.util.highlight(ele, options);};/** * @private Internal function to draw a single row of a table. */dwr.util._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];    if (typeof func == 'function') options.data = func(options.rowData, options);    else options.data = func || "";    options.cellNum = cellNum;    var td = options.cellCreator(options);    if (td != null) {      if (options.data != null) {        if (dwr.util._isHTMLElement(options.data)) td.appendChild(options.data);        else {          if (dwr.util._shouldEscapeHtml(options) && typeof(options.data) == "string") {            td.innerHTML = dwr.util.escapeHtml(options.data);          }          else {            td.innerHTML = options.data;          }        }      }      tr.appendChild(td);    }  }  return tr;};/** * @private Default row creation function */dwr.util._defaultRowCreator = function(options) {  return document.createElement("tr");};/** * @private Default cell creation function */dwr.util._defaultCellCreator = function(options) {  return document.createElement("td");};/** * Remove all the children of a given node. * @see http://getahead.ltd.uk/dwr/browser/tables */dwr.util.removeAllRows = function(ele, options) {  ele = dwr.util._getElementById(ele, "removeAllRows()");  if (ele == null) return;  if (!options) options = {};  if (!options.filter) options.filter = function() { return true; };  if (!dwr.util._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) {    dwr.util._debug("removeAllRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + dwr.util._detailedTypeOf(ele));    return;  }  var child = ele.firstChild;  var next;  while (child != null) {    next = child.nextSibling;    if (options.filter(child)) {      ele.removeChild(child);    }    child = next;  }};/** * dwr.util.byId(ele).className = "X", that we can call from Java easily. */dwr.util.setClassName = function(ele, className) {  ele = dwr.util._getElementById(ele, "setClassName()");  if (ele == null) return;  ele.className = className;};/** * dwr.util.byId(ele).className += "X", that we can call from Java easily. */dwr.util.addClassName = function(ele, className) {  ele = dwr.util._getElementById(ele, "addClassName()");  if (ele == null) return;  ele.className += " " + className;};/** * dwr.util.byId(ele).className -= "X", that we can call from Java easily * From code originally by Gavin Kistner */dwr.util.removeClassName = function(ele, className) {  ele = dwr.util._getElementById(ele, "removeClassName()");  if (ele == null) return;  var regex = new RegExp("(^|\\s)" + className + "(\\s|$)", 'g');  ele.className = ele.className.replace(regex, '');};/** * dwr.util.byId(ele).className |= "X", that we can call from Java easily. */dwr.util.toggleClassName = function(ele, className) {  ele = dwr.util._getElementById(ele, "toggleClassName()");  if (ele == null) return;  var regex = new RegExp("(^|\\s)" + className + "(\\s|$)");  if (regex.test(element.className)) {    ele.className = ele.className.replace(regex, '');  }  else {    ele.className += " " + className;  }};/** * Clone a node and insert it into the document just above the 'template' node * @see http://getahead.ltd.uk/dwr/??? */dwr.util.cloneNode = function(ele, options) {  ele = dwr.util._getElementById(ele, "cloneNode()");  if (ele == null) return null;  if (options == null) options = {};  var clone = ele.cloneNode(true);  if (options.idPrefix || options.idSuffix) {    dwr.util._updateIds(clone, options);  }  else {    dwr.util._removeIds(clone);  }  ele.parentNode.insertBefore(clone, ele);  return clone;};/** * @private Update all of the ids in an element tree */dwr.util._updateIds = function(ele, options) {  if (options == null) options = {};  if (ele.id) {    ele.setAttribute("id", (options.idPrefix || "") + ele.id + (options.idSuffix || ""));  }  var children = ele.childNodes;  for (var i = 0; i < children.length; i++) {    var child = children.item(i);    if (child.nodeType == 1 /*Node.ELEMENT_NODE*/) {      dwr.util._updateIds(child, options);    }  }};/** * @private Remove all the Ids from an element */dwr.util._removeIds = function(ele) {  if (ele.id) ele.removeAttribute("id");  var children = ele.childNodes;  for (var i = 0; i < children.length; i++) {    var child = children.item(i);    if (child.nodeType == 1 /*Node.ELEMENT_NODE*/) {      dwr.util._removeIds(child);    }  }};/** * @private Helper to turn a string into an element with an error message */dwr.util._getElementById = function(ele, source) {  var orig = ele;  ele = dwr.util.byId(ele);  if (ele == null) {    dwr.util._debug(source + " can't find an element with id: " + orig + ".");  }  return ele;};/** * @private Is the given node an HTML element (optionally of a given type)? * @param ele The element to test * @param nodeName eg "input", "textarea" - check for node name (optional) *         if nodeName is an array then check all for a match. */dwr.util._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 (dwr.util._isArray(nodeName)) {      var match = false;      for (var i = 0; i < nodeName.length && !match; i++) {        if (test == nodeName[i].toLowerCase()) {          match =  true;        }      }      return match;    }    dwr.util._debug("dwr.util._isHTMLElement was passed test node name that is neither a string or array of strings");    return false;  }  return true;};/** * @private Like typeOf except that more information for an object is returned other than "object" */dwr.util._detailedTypeOf = function(x) {  var reply = typeof x;  if (reply == "object") {    reply = Object.prototype.toString.apply(x); // Returns "[object class]"    reply = reply.substring(8, reply.length-1);  // Just get the class bit  }  return reply;};/** * @private Object detector. Excluding null from objects. */dwr.util._isObject = function(data) {  return (data && typeof data == "object");};/** * @private Array detector. */dwr.util._isArray = function(data) {  return (data && data instanceof Array);};/** * @private Date detector. */dwr.util._isDate = function(data) {  return (data && data instanceof Date);};/** * @private Used by setValue. Gets around the missing functionallity in IE. */dwr.util._importNode = function(doc, importedNode, deep) {  var newNode;  if (importedNode.nodeType == 1 /*Node.ELEMENT_NODE*/) {    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 /*Node.TEXT_NODE*/) {    newNode = doc.createTextNode(importedNode.nodeValue);  }  if (deep && importedNode.hasChildNodes()) {    for (i = 0; i < importedNode.childNodes.length; i++) {      newNode.appendChild(dwr.util._importNode(doc, importedNode.childNodes[i], true));    }  }  return newNode;};/** @private Used internally when some message needs to get to the programmer */dwr.util._debug = function(message, stacktrace) {  var written = false;  try {    if (window.console) {      if (stacktrace && window.console.trace) window.console.trace();      window.console.log(message);      written = true;    }    else if (window.opera && window.opera.postError) {      window.opera.postError(message);      written = true;    }  }  catch (ex) { /* ignore */ }  if (!written) {    var debug = document.getElementById("dwr-debug");    if (debug) {      var contents = message + "<br/>" + debug.innerHTML;      if (contents.length > 2048) contents = contents.substring(0, 2048);      debug.innerHTML = contents;    }  }};