skins/ajax_scripts/sarissa.js

   1 /*
   2  * ====================================================================
   3  * About Sarissa: http://dev.abiss.gr/sarissa
   4  * ====================================================================
   5  * Sarissa is an ECMAScript library acting as a cross-browser wrapper for native XML APIs.
   6  * The library supports Gecko based browsers like Mozilla and Firefox,
   7  * Internet Explorer (5.5+ with MSXML3.0+), Konqueror, Safari and Opera
   8  * @version 0.9.9.6
   9  * @author: Copyright 2004-2008 Emmanouil Batsis, mailto: mbatsis at users full stop sourceforge full stop net
  10  * ====================================================================
  11  * Licence
  12  * ====================================================================
  13  * Sarissa is free software distributed under the GNU GPL version 2 (see <a href="gpl.txt">gpl.txt</a>) or higher,
  14  * GNU LGPL version 2.1 (see <a href="lgpl.txt">lgpl.txt</a>) or higher and Apache Software License 2.0 or higher
  15  * (see <a href="asl.txt">asl.txt</a>). This means you can choose one of the three and use that if you like. If
  16  * you make modifications under the ASL, i would appreciate it if you submitted those.
  17  * In case your copy of Sarissa does not include the license texts, you may find
  18  * them online in various formats at <a href="http://www.gnu.org">http://www.gnu.org</a> and
  19  * <a href="http://www.apache.org">http://www.apache.org</a>.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  22  * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  23  * WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE
  24  * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  25  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  27  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  28  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29  */
  30 /**
  31  * <p>Sarissa is a utility class. Provides "static" methods for DOMDocument,
  32  * DOM Node serialization to XML strings and other utility goodies.</p>
  33  * @constructor
  34  * @static
  35  */
  36 function Sarissa(){}
  37 Sarissa.VERSION = "0.9.9.6";
  38 Sarissa.PARSED_OK = "Document contains no parsing errors";
  39 Sarissa.PARSED_EMPTY = "Document is empty";
  40 Sarissa.PARSED_UNKNOWN_ERROR = "Not well-formed or other error";
  41 Sarissa.IS_ENABLED_TRANSFORM_NODE = false;
  42 Sarissa.REMOTE_CALL_FLAG = "gr.abiss.sarissa.REMOTE_CALL_FLAG";
  43 /** @private */
  44 Sarissa._lastUniqueSuffix = 0;
  45 /** @private */
  46 Sarissa._getUniqueSuffix = function(){
  47         return Sarissa._lastUniqueSuffix++;
  48 };
  49 /** @private */
  50 Sarissa._SARISSA_IEPREFIX4XSLPARAM = "";
  51 /** @private */
  52 Sarissa._SARISSA_HAS_DOM_IMPLEMENTATION = document.implementation && true;
  53 /** @private */
  54 Sarissa._SARISSA_HAS_DOM_CREATE_DOCUMENT = Sarissa._SARISSA_HAS_DOM_IMPLEMENTATION && document.implementation.createDocument;
  55 /** @private */
  56 Sarissa._SARISSA_HAS_DOM_FEATURE = Sarissa._SARISSA_HAS_DOM_IMPLEMENTATION && document.implementation.hasFeature;
  57 /** @private */
  58 Sarissa._SARISSA_IS_MOZ = Sarissa._SARISSA_HAS_DOM_CREATE_DOCUMENT && Sarissa._SARISSA_HAS_DOM_FEATURE;
  59 /** @private */
  60 Sarissa._SARISSA_IS_SAFARI = navigator.userAgent.toLowerCase().indexOf("safari") != -1 || navigator.userAgent.toLowerCase().indexOf("konqueror") != -1;
  61 /** @private */
  62 Sarissa._SARISSA_IS_SAFARI_OLD = Sarissa._SARISSA_IS_SAFARI && (parseInt((navigator.userAgent.match(/AppleWebKit\/(\d+)/)||{})[1], 10) < 420);
  63 /** @private */
  64 Sarissa._SARISSA_IS_IE = document.all && window.ActiveXObject && navigator.userAgent.toLowerCase().indexOf("msie") > -1  && navigator.userAgent.toLowerCase().indexOf("opera") == -1;
  65 /** @private */
  66 Sarissa._SARISSA_IS_IE9 = Sarissa._SARISSA_IS_IE && navigator.userAgent.toLowerCase().indexOf("msie 9") > -1;
  67 /** @private */
  68 Sarissa._SARISSA_IS_OPERA = navigator.userAgent.toLowerCase().indexOf("opera") != -1;
  69 if(!window.Node || !Node.ELEMENT_NODE){
  70     Node = {ELEMENT_NODE: 1, ATTRIBUTE_NODE: 2, TEXT_NODE: 3, CDATA_SECTION_NODE: 4, ENTITY_REFERENCE_NODE: 5,  ENTITY_NODE: 6, PROCESSING_INSTRUCTION_NODE: 7, COMMENT_NODE: 8, DOCUMENT_NODE: 9, DOCUMENT_TYPE_NODE: 10, DOCUMENT_FRAGMENT_NODE: 11, NOTATION_NODE: 12};
  71 }
  72
  73 //This breaks for(x in o) loops in the old Safari
  74 if(Sarissa._SARISSA_IS_SAFARI_OLD){
  75         HTMLHtmlElement = document.createElement("html").constructor;
  76         Node = HTMLElement = {};
  77         HTMLElement.prototype = HTMLHtmlElement.__proto__.__proto__;
  78         HTMLDocument = Document = document.constructor;
  79         var x = new DOMParser();
  80         XMLDocument = x.constructor;
  81         Element = x.parseFromString("<Single />", "text/xml").documentElement.constructor;
  82         x = null;
  83 }
  84 if(typeof XMLDocument == "undefined" && typeof Document !="undefined"){ XMLDocument = Document; }
  85
  86 // IE initialization
  87 if(Sarissa._SARISSA_IS_IE){
  88     // for XSLT parameter names, prefix needed by IE
  89     Sarissa._SARISSA_IEPREFIX4XSLPARAM = "xsl:";
  90     // used to store the most recent ProgID available out of the above
  91     var _SARISSA_DOM_PROGID = "";
  92     var _SARISSA_XMLHTTP_PROGID = "";
  93     var _SARISSA_DOM_XMLWRITER = "";
  94     /**
  95      * Called when the sarissa.js file is parsed, to pick most recent
  96      * ProgIDs for IE, then gets destroyed.
  97      * @memberOf Sarissa
  98      * @private
  99      * @param idList an array of MSXML PROGIDs from which the most recent will be picked for a given object
 100      * @param enabledList an array of arrays where each array has two items; the index of the PROGID for which a certain feature is enabled
 101      */
 102     Sarissa.pickRecentProgID = function (idList){
 103         // found progID flag
 104         var bFound = false, e;
 105         var o2Store;
 106         for(var i=0; i < idList.length && !bFound; i++){
 107             try{
 108                 var oDoc = new ActiveXObject(idList[i]);
 109                 o2Store = idList[i];
 110                 bFound = true;
 111             }catch (objException){
 112                 // trap; try next progID
 113                 e = objException;
 114             }
 115         }
 116         if (!bFound) {
 117             throw "Could not retrieve a valid progID of Class: " + idList[idList.length-1]+". (original exception: "+e+")";
 118         }
 119         idList = null;
 120         return o2Store;
 121     };
 122     // pick best available MSXML progIDs
 123     _SARISSA_DOM_PROGID = null;
 124     _SARISSA_THREADEDDOM_PROGID = null;
 125     _SARISSA_XSLTEMPLATE_PROGID = null;
 126     _SARISSA_XMLHTTP_PROGID = null;
 127     // commenting the condition out; we need to redefine XMLHttpRequest
 128     // anyway as IE7 hardcodes it to MSXML3.0 causing version problems
 129     // between different activex controls
 130     //if(!window.XMLHttpRequest){
 131     /**
 132      * Emulate XMLHttpRequest
 133      * @constructor
 134      */
 135     XMLHttpRequest = function() {
 136         if(!_SARISSA_XMLHTTP_PROGID){
 137             _SARISSA_XMLHTTP_PROGID = Sarissa.pickRecentProgID(["Msxml2.XMLHTTP.6.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"]);
 138         }
 139         return new ActiveXObject(_SARISSA_XMLHTTP_PROGID);
 140     };
 141     //}
 142     // we dont need this anymore
 143     //============================================
 144     // Factory methods (IE)
 145     //============================================
 146     // see non-IE version
 147     Sarissa.getDomDocument = function(sUri, sName){
 148         if(!_SARISSA_DOM_PROGID){
 149                 try{
 150                         _SARISSA_DOM_PROGID = Sarissa.pickRecentProgID(["Msxml2.DOMDocument.6.0", "Msxml2.DOMDocument.3.0", "MSXML2.DOMDocument", "MSXML.DOMDocument", "Microsoft.XMLDOM"]);
 151                 }catch(e){
 152                         _SARISSA_DOM_PROGID = "noActiveX";
 153                 }
 154         }
 155
 156         // Not sure how far IE can carry this but try to do something useful when ActiveX is disabled
 157         var oDoc = _SARISSA_DOM_PROGID == "noActiveX" ? document.createElement("xml") : new ActiveXObject(_SARISSA_DOM_PROGID);
 158         // set validation off, make sure older IEs dont choke (no time or IEs to test ;-)
 159         try{
 160                 oDoc.validateOnParse = false;
 161                 oDoc.resolveExternals = "false";
 162                 oDoc.setProperty("ProhibitDTD", false);
 163         }catch(e){}
 164
 165         // if a root tag name was provided, we need to load it in the DOM object
 166         if (sName){
 167             // create an artifical namespace prefix
 168             // or reuse existing prefix if applicable
 169             var prefix = "";
 170             if(sUri){
 171                 if(sName.indexOf(":") > 1){
 172                     prefix = sName.substring(0, sName.indexOf(":"));
 173                     sName = sName.substring(sName.indexOf(":")+1);
 174                 }else{
 175                     prefix = "a" + Sarissa._getUniqueSuffix();
 176                 }
 177             }
 178             // use namespaces if a namespace URI exists
 179             if(sUri){
 180                 oDoc.loadXML('<' + prefix+':'+sName + " xmlns:" + prefix + "=\"" + sUri + "\"" + " />");
 181             } else {
 182                 oDoc.loadXML('<' + sName + " />");
 183             }
 184         }
 185         return oDoc;
 186     };
 187     // see non-IE version
 188     Sarissa.getParseErrorText = function (oDoc) {
 189         var parseErrorText = Sarissa.PARSED_OK;
 190         if(oDoc && oDoc.parseError && oDoc.parseError.errorCode && oDoc.parseError.errorCode != 0){
 191             parseErrorText = "XML Parsing Error: " + oDoc.parseError.reason +
 192                 "\nLocation: " + oDoc.parseError.url +
 193                 "\nLine Number " + oDoc.parseError.line + ", Column " +
 194                 oDoc.parseError.linepos +
 195                 ":\n" + oDoc.parseError.srcText +
 196                 "\n";
 197             for(var i = 0;  i < oDoc.parseError.linepos;i++){
 198                 parseErrorText += "-";
 199             }
 200             parseErrorText +=  "^\n";
 201         }
 202         else if(oDoc.documentElement === null){
 203             parseErrorText = Sarissa.PARSED_EMPTY;
 204         }
 205         return parseErrorText;
 206     };
 207     // see non-IE version
 208     Sarissa.setXpathNamespaces = function(oDoc, sNsSet) {
 209         oDoc.setProperty("SelectionLanguage", "XPath");
 210         oDoc.setProperty("SelectionNamespaces", sNsSet);
 211     };
 212     /**
 213      * A class that reuses the same XSLT stylesheet for multiple transforms.
 214      * @constructor
 215      */
 216     XSLTProcessor = function(){
 217         if(!_SARISSA_XSLTEMPLATE_PROGID){
 218             _SARISSA_XSLTEMPLATE_PROGID = Sarissa.pickRecentProgID(["Msxml2.XSLTemplate.6.0", "MSXML2.XSLTemplate.3.0"]);
 219         }
 220         this.template = new ActiveXObject(_SARISSA_XSLTEMPLATE_PROGID);
 221         this.processor = null;
 222     };
 223     /**
 224      * Imports the given XSLT DOM and compiles it to a reusable transform
 225      * <b>Note:</b> If the stylesheet was loaded from a URL and contains xsl:import or xsl:include elements,it will be reloaded to resolve those
 226      * @param {DOMDocument} xslDoc The XSLT DOMDocument to import
 227      */
 228     XSLTProcessor.prototype.importStylesheet = function(xslDoc){
 229         if(!_SARISSA_THREADEDDOM_PROGID){
 230             _SARISSA_THREADEDDOM_PROGID = Sarissa.pickRecentProgID(["MSXML2.FreeThreadedDOMDocument.6.0", "MSXML2.FreeThreadedDOMDocument.3.0"]);
 231         }
 232         xslDoc.setProperty("SelectionLanguage", "XPath");
 233         xslDoc.setProperty("SelectionNamespaces", "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'");
 234         // convert stylesheet to free threaded
 235         var converted = new ActiveXObject(_SARISSA_THREADEDDOM_PROGID);
 236         // make included/imported stylesheets work if exist and xsl was originally loaded from url
 237         try{
 238             converted.resolveExternals = true;
 239             converted.setProperty("AllowDocumentFunction", true);
 240             converted.setProperty("AllowXsltScript", true);
 241         }
 242         catch(e){
 243             // Ignore. "AllowDocumentFunction" and "AllowXsltScript" is only supported in MSXML 3.0 SP4+ and 3.0 SP8+ respectively.
 244         }
 245         if(xslDoc.url && xslDoc.selectSingleNode("//xsl:*[local-name() = 'import' or local-name() = 'include']") != null){
 246             converted.async = false;
 247             converted.load(xslDoc.url);
 248         }
 249         else {
 250             converted.loadXML(xslDoc.xml);
 251         }
 252         converted.setProperty("SelectionNamespaces", "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'");
 253         var output = converted.selectSingleNode("//xsl:output");
 254         //this.outputMethod = output ? output.getAttribute("method") : "html";
 255         if(output) {
 256             this.outputMethod = output.getAttribute("method");
 257         }
 258         else {
 259             delete this.outputMethod;
 260         }
 261         this.template.stylesheet = converted;
 262         this.processor = this.template.createProcessor();
 263         // for getParameter and clearParameters
 264         this.paramsSet = [];
 265     };
 266
 267     /**
 268      * Transform the given XML DOM and return the transformation result as a new DOM document
 269      * @param {DOMDocument} sourceDoc The XML DOMDocument to transform
 270      * @return {DOMDocument} The transformation result as a DOM Document
 271      */
 272     XSLTProcessor.prototype.transformToDocument = function(sourceDoc){
 273         // fix for bug 1549749
 274         var outDoc;
 275         if(_SARISSA_THREADEDDOM_PROGID){
 276             this.processor.input=sourceDoc;
 277             outDoc=new ActiveXObject(_SARISSA_DOM_PROGID);
 278             this.processor.output=outDoc;
 279             this.processor.transform();
 280             return outDoc;
 281         }
 282         else{
 283             if(!_SARISSA_DOM_XMLWRITER){
 284                 _SARISSA_DOM_XMLWRITER = Sarissa.pickRecentProgID(["Msxml2.MXXMLWriter.6.0", "Msxml2.MXXMLWriter.3.0", "MSXML2.MXXMLWriter", "MSXML.MXXMLWriter", "Microsoft.XMLDOM"]);
 285             }
 286             this.processor.input = sourceDoc;
 287             outDoc = new ActiveXObject(_SARISSA_DOM_XMLWRITER);
 288             this.processor.output = outDoc;
 289             this.processor.transform();
 290             var oDoc = new ActiveXObject(_SARISSA_DOM_PROGID);
 291             oDoc.loadXML(outDoc.output+"");
 292             return oDoc;
 293         }
 294     };
 295
 296     /**
 297      * Transform the given XML DOM and return the transformation result as a new DOM fragment.
 298      * <b>Note</b>: The xsl:output method must match the nature of the owner document (XML/HTML).
 299      * @param {DOMDocument} sourceDoc The XML DOMDocument to transform
 300      * @param {DOMDocument} ownerDoc The owner of the result fragment
 301      * @return {DOMDocument} The transformation result as a DOM Document
 302      */
 303     XSLTProcessor.prototype.transformToFragment = function (sourceDoc, ownerDoc) {
 304         this.processor.input = sourceDoc;
 305         this.processor.transform();
 306         var s = this.processor.output;
 307         var f = ownerDoc.createDocumentFragment();
 308         var container;
 309         if (this.outputMethod == 'text') {
 310             f.appendChild(ownerDoc.createTextNode(s));
 311         } else if (ownerDoc.body && ownerDoc.body.innerHTML) {
 312             container = ownerDoc.createElement('div');
 313             container.innerHTML = s;
 314             while (container.hasChildNodes()) {
 315                 f.appendChild(container.firstChild);
 316             }
 317         }
 318         else {
 319             var oDoc = new ActiveXObject(_SARISSA_DOM_PROGID);
 320             if (s.substring(0, 5) == '<?xml') {
 321                 s = s.substring(s.indexOf('?>') + 2);
 322             }
 323             var xml = ''.concat('<my>', s, '</my>');
 324             oDoc.loadXML(xml);
 325             container = oDoc.documentElement;
 326             while (container.hasChildNodes()) {
 327                 f.appendChild(container.firstChild);
 328             }
 329         }
 330         return f;
 331     };
 332
 333     /**
 334      * Set global XSLT parameter of the imported stylesheet. This method should
 335      * only be used <strong>after</strong> the importStylesheet method for the
 336      * context XSLTProcessor instance.
 337      * @param {String} nsURI The parameter namespace URI
 338      * @param {String} name The parameter base name
 339      * @param {String} value The new parameter value
 340      */
 341      XSLTProcessor.prototype.setParameter = function(nsURI, name, value){
 342          // make value a zero length string if null to allow clearing
 343          value = value ? value : "";
 344          // nsURI is optional but cannot be null
 345          if(nsURI){
 346              this.processor.addParameter(name, value, nsURI);
 347          }else{
 348              this.processor.addParameter(name, value);
 349          }
 350          // update updated params for getParameter
 351          nsURI = "" + (nsURI || "");
 352          if(!this.paramsSet[nsURI]){
 353              this.paramsSet[nsURI] = [];
 354          }
 355          this.paramsSet[nsURI][name] = value;
 356      };
 357     /**
 358      * Gets a parameter if previously set by setParameter. Returns null
 359      * otherwise
 360      * @param {String} name The parameter base name
 361      * @param {String} value The new parameter value
 362      * @return {String} The parameter value if reviously set by setParameter, null otherwise
 363      */
 364     XSLTProcessor.prototype.getParameter = function(nsURI, name){
 365         nsURI = "" + (nsURI || "");
 366         if(this.paramsSet[nsURI] && this.paramsSet[nsURI][name]){
 367             return this.paramsSet[nsURI][name];
 368         }else{
 369             return null;
 370         }
 371     };
 372
 373     /**
 374      * Clear parameters (set them to default values as defined in the stylesheet itself)
 375      */
 376     XSLTProcessor.prototype.clearParameters = function(){
 377         for(var nsURI in this.paramsSet){
 378             for(var name in this.paramsSet[nsURI]){
 379                 if(nsURI!=""){
 380                     this.processor.addParameter(name, "", nsURI);
 381                 }else{
 382                     this.processor.addParameter(name, "");
 383                 }
 384             }
 385         }
 386         this.paramsSet = [];
 387     };
 388 }else{ /* end IE initialization, try to deal with real browsers now ;-) */
 389     if(Sarissa._SARISSA_HAS_DOM_CREATE_DOCUMENT){
 390         /**
 391          * <p>Ensures the document was loaded correctly, otherwise sets the
 392          * parseError to -1 to indicate something went wrong. Internal use</p>
 393          * @private
 394          */
 395         Sarissa.__handleLoad__ = function(oDoc){
 396             Sarissa.__setReadyState__(oDoc, 4);
 397         };
 398         /**
 399         * <p>Attached by an event handler to the load event. Internal use.</p>
 400         * @private
 401         */
 402         _sarissa_XMLDocument_onload = function(){
 403             Sarissa.__handleLoad__(this);
 404         };
 405         /**
 406          * <p>Sets the readyState property of the given DOM Document object.
 407          * Internal use.</p>
 408          * @memberOf Sarissa
 409          * @private
 410          * @param oDoc the DOM Document object to fire the
 411          *          readystatechange event
 412          * @param iReadyState the number to change the readystate property to
 413          */
 414         Sarissa.__setReadyState__ = function(oDoc, iReadyState){
 415             oDoc.readyState = iReadyState;
 416             oDoc.readystate = iReadyState;
 417             if (oDoc.onreadystatechange != null && typeof oDoc.onreadystatechange == "function") {
 418                 oDoc.onreadystatechange();
 419             }
 420         };
 421
 422         Sarissa.getDomDocument = function(sUri, sName){
 423             var oDoc = document.implementation.createDocument(sUri?sUri:null, sName?sName:null, null);
 424             if(!oDoc.onreadystatechange){
 425
 426                 /**
 427                 * <p>Emulate IE's onreadystatechange attribute</p>
 428                 */
 429                 oDoc.onreadystatechange = null;
 430             }
 431             if(!oDoc.readyState){
 432                 /**
 433                 * <p>Emulates IE's readyState property, which always gives an integer from 0 to 4:</p>
 434                 * <ul><li>1 == LOADING,</li>
 435                 * <li>2 == LOADED,</li>
 436                 * <li>3 == INTERACTIVE,</li>
 437                 * <li>4 == COMPLETED</li></ul>
 438                 */
 439                 oDoc.readyState = 0;
 440             }
 441             oDoc.addEventListener("load", _sarissa_XMLDocument_onload, false);
 442             return oDoc;
 443         };
 444         if(window.XMLDocument){
 445             // do nothing
 446         }// TODO: check if the new document has content before trying to copynodes, check  for error handling in DOM 3 LS
 447         else if(Sarissa._SARISSA_HAS_DOM_FEATURE && window.Document && !Document.prototype.load && document.implementation.hasFeature('LS', '3.0')){
 448                 //Opera 9 may get the XPath branch which gives creates XMLDocument, therefore it doesn't reach here which is good
 449             /**
 450             * <p>Factory method to obtain a new DOM Document object</p>
 451             * @memberOf Sarissa
 452             * @param {String} sUri the namespace of the root node (if any)
 453             * @param {String} sUri the local name of the root node (if any)
 454             * @returns {DOMDOcument} a new DOM Document
 455             */
 456             Sarissa.getDomDocument = function(sUri, sName){
 457                 var oDoc = document.implementation.createDocument(sUri?sUri:null, sName?sName:null, null);
 458                 return oDoc;
 459             };
 460         }
 461         else {
 462             Sarissa.getDomDocument = function(sUri, sName){
 463                 var oDoc = document.implementation.createDocument(sUri?sUri:null, sName?sName:null, null);
 464                 // looks like safari does not create the root element for some unknown reason
 465                 if(oDoc && (sUri || sName) && !oDoc.documentElement){
 466                     oDoc.appendChild(oDoc.createElementNS(sUri, sName));
 467                 }
 468                 return oDoc;
 469             };
 470         }
 471     }//if(Sarissa._SARISSA_HAS_DOM_CREATE_DOCUMENT)
 472 }
 473 //==========================================
 474 // Common stuff
 475 //==========================================
 476 if(!window.DOMParser || Sarissa._SARISSA_IS_IE9){
 477     if(Sarissa._SARISSA_IS_SAFARI){
 478         /**
 479          * DOMParser is a utility class, used to construct DOMDocuments from XML strings
 480          * @constructor
 481          */
 482         DOMParser = function() { };
 483         /**
 484         * Construct a new DOM Document from the given XMLstring
 485         * @param {String} sXml the given XML string
 486         * @param {String} contentType the content type of the document the given string represents (one of text/xml, application/xml, application/xhtml+xml).
 487         * @return {DOMDocument} a new DOM Document from the given XML string
 488         */
 489         DOMParser.prototype.parseFromString = function(sXml, contentType){
 490             var xmlhttp = new XMLHttpRequest();
 491             xmlhttp.open("GET", "data:text/xml;charset=utf-8," + encodeURIComponent(sXml), false);
 492             xmlhttp.send(null);
 493             return xmlhttp.responseXML;
 494         };
 495     }else if(Sarissa.getDomDocument && Sarissa.getDomDocument() && Sarissa.getDomDocument(null, "bar").xml){
 496         DOMParser = function() { };
 497         DOMParser.prototype.parseFromString = function(sXml, contentType){
 498             var doc = Sarissa.getDomDocument();
 499             try{
 500                 doc.validateOnParse = false;
 501                 doc.setProperty("ProhibitDTD", false);
 502             }catch(e){}
 503             doc.loadXML(sXml);
 504             return doc;
 505         };
 506     }
 507 }
 508
 509 if((typeof(document.importNode) == "undefined") && Sarissa._SARISSA_IS_IE){
 510     try{
 511         /**
 512         * Implementation of importNode for the context window document in IE.
 513         * If <code>oNode</code> is a TextNode, <code>bChildren</code> is ignored.
 514         * @param {DOMNode} oNode the Node to import
 515         * @param {boolean} bChildren whether to include the children of oNode
 516         * @returns the imported node for further use
 517         */
 518         document.importNode = function(oNode, bChildren){
 519             var tmp;
 520             if (oNode.nodeName=='#text') {
 521                 return document.createTextNode(oNode.data);
 522             }
 523             else {
 524                 if(oNode.nodeName == "tbody" || oNode.nodeName == "tr"){
 525                     tmp = document.createElement("table");
 526                 }
 527                 else if(oNode.nodeName == "td"){
 528                     tmp = document.createElement("tr");
 529                 }
 530                 else if(oNode.nodeName == "option"){
 531                     tmp = document.createElement("select");
 532                 }
 533                 else{
 534                     tmp = document.createElement("div");
 535                 }
 536                 if(bChildren){
 537                     tmp.innerHTML = oNode.xml ? oNode.xml : oNode.outerHTML;
 538                 }else{
 539                     tmp.innerHTML = oNode.xml ? oNode.cloneNode(false).xml : oNode.cloneNode(false).outerHTML;
 540                 }
 541                 return tmp.getElementsByTagName("*")[0];
 542             }
 543         };
 544     }catch(e){ }
 545 }
 546 if(!Sarissa.getParseErrorText){
 547     /**
 548      * <p>Returns a human readable description of the parsing error. Usefull
 549      * for debugging. Tip: append the returned error string in a &lt;pre&gt;
 550      * element if you want to render it.</p>
 551      * <p>Many thanks to Christian Stocker for the initial patch.</p>
 552      * @memberOf Sarissa
 553      * @param {DOMDocument} oDoc The target DOM document
 554      * @returns {String} The parsing error description of the target Document in
 555      *          human readable form (preformated text)
 556      */
 557     Sarissa.getParseErrorText = function (oDoc){
 558         var parseErrorText = Sarissa.PARSED_OK;
 559         if((!oDoc) || (!oDoc.documentElement)){
 560             parseErrorText = Sarissa.PARSED_EMPTY;
 561         } else if(oDoc.documentElement.tagName == "parsererror"){
 562             parseErrorText = oDoc.documentElement.firstChild.data;
 563             parseErrorText += "\n" +  oDoc.documentElement.firstChild.nextSibling.firstChild.data;
 564         } else if(oDoc.getElementsByTagName("parsererror").length > 0){
 565             var parsererror = oDoc.getElementsByTagName("parsererror")[0];
 566             parseErrorText = Sarissa.getText(parsererror, true)+"\n";
 567         } else if(oDoc.parseError && oDoc.parseError.errorCode != 0){
 568             parseErrorText = Sarissa.PARSED_UNKNOWN_ERROR;
 569         }
 570         return parseErrorText;
 571     };
 572 }
 573 /**
 574  * Get a string with the concatenated values of all string nodes under the given node
 575  * @param {DOMNode} oNode the given DOM node
 576  * @param {boolean} deep whether to recursively scan the children nodes of the given node for text as well. Default is <code>false</code>
 577  * @memberOf Sarissa
 578  */
 579 Sarissa.getText = function(oNode, deep){
 580     var s = "";
 581     var nodes = oNode.childNodes;
 582     // opera fix, finds no child text node for attributes so we use .value
 583     if (oNode.nodeType == Node.ATTRIBUTE_NODE && nodes.length == 0) {
 584         return oNode.value;
 585     }
 586     // END opera fix
 587     for(var i=0; i < nodes.length; i++){
 588         var node = nodes[i];
 589         var nodeType = node.nodeType;
 590         if(nodeType == Node.TEXT_NODE || nodeType == Node.CDATA_SECTION_NODE){
 591             s += node.data;
 592         } else if(deep === true && (nodeType == Node.ELEMENT_NODE || nodeType == Node.DOCUMENT_NODE || nodeType == Node.DOCUMENT_FRAGMENT_NODE)){
 593             s += Sarissa.getText(node, true);
 594         }
 595     }
 596     return s;
 597 };
 598 if(!window.XMLSerializer && Sarissa.getDomDocument && Sarissa.getDomDocument("","foo", null).xml){
 599     /**
 600      * Utility class to serialize DOM Node objects to XML strings
 601      * @constructor
 602      */
 603     XMLSerializer = function(){};
 604     /**
 605      * Serialize the given DOM Node to an XML string
 606      * @param {DOMNode} oNode the DOM Node to serialize
 607      */
 608     XMLSerializer.prototype.serializeToString = function(oNode) {
 609         return oNode.xml;
 610     };
 611 } else if (Sarissa._SARISSA_IS_IE9 && window.XMLSerializer) {
 612     // We save old object for any futur use with IE Document (not xml)
 613     IE9XMLSerializer= XMLSerializer;
 614     XMLSerializer = function(){ this._oldSerializer=new IE9XMLSerializer() };
 615     XMLSerializer.prototype.serializeToString = function(oNode) {
 616         if (typeof(oNode)=='object' && 'xml' in oNode) {
 617             return oNode.xml;
 618         } else {
 619             return this._oldSerializer.serializeToString(oNode);
 620         }
 621     };
 622 }
 623
 624 /**
 625  * Strips tags from the given markup string. If the given string is
 626  * <code>undefined</code>, <code>null</code> or empty, it is returned as is.
 627  * @memberOf Sarissa
 628  * @param {String} s the string to strip the tags from
 629  */
 630 Sarissa.stripTags = function (s) {
 631     return s?s.replace(/<[^>]+>/g,""):s;
 632 };
 633 /**
 634  * <p>Deletes all child nodes of the given node</p>
 635  * @memberOf Sarissa
 636  * @param {DOMNode} oNode the Node to empty
 637  */
 638 Sarissa.clearChildNodes = function(oNode) {
 639     // need to check for firstChild due to opera 8 bug with hasChildNodes
 640     while(oNode.firstChild) {
 641         oNode.removeChild(oNode.firstChild);
 642     }
 643 };
 644 /**
 645  * <p> Copies the childNodes of nodeFrom to nodeTo</p>
 646  * <p> <b>Note:</b> The second object's original content is deleted before
 647  * the copy operation, unless you supply a true third parameter</p>
 648  * @memberOf Sarissa
 649  * @param {DOMNode} nodeFrom the Node to copy the childNodes from
 650  * @param {DOMNode} nodeTo the Node to copy the childNodes to
 651  * @param {boolean} bPreserveExisting whether to preserve the original content of nodeTo, default is false
 652  */
 653 Sarissa.copyChildNodes = function(nodeFrom, nodeTo, bPreserveExisting) {
 654     if(Sarissa._SARISSA_IS_SAFARI && nodeTo.nodeType == Node.DOCUMENT_NODE){ // SAFARI_OLD ??
 655         nodeTo = nodeTo.documentElement; //Apparently there's a bug in safari where you can't appendChild to a document node
 656     }
 657
 658     if((!nodeFrom) || (!nodeTo)){
 659         throw "Both source and destination nodes must be provided";
 660     }
 661     if(!bPreserveExisting){
 662         Sarissa.clearChildNodes(nodeTo);
 663     }
 664     var ownerDoc = nodeTo.nodeType == Node.DOCUMENT_NODE ? nodeTo : nodeTo.ownerDocument;
 665     var nodes = nodeFrom.childNodes;
 666     var i;
 667     if(typeof(ownerDoc.importNode) != "undefined")  {
 668         for(i=0;i < nodes.length;i++) {
 669             nodeTo.appendChild(ownerDoc.importNode(nodes[i], true));
 670         }
 671     } else {
 672         for(i=0;i < nodes.length;i++) {
 673             nodeTo.appendChild(nodes[i].cloneNode(true));
 674         }
 675     }
 676 };
 677
 678 /**
 679  * <p> Moves the childNodes of nodeFrom to nodeTo</p>
 680  * <p> <b>Note:</b> The second object's original content is deleted before
 681  * the move operation, unless you supply a true third parameter</p>
 682  * @memberOf Sarissa
 683  * @param {DOMNode} nodeFrom the Node to copy the childNodes from
 684  * @param {DOMNode} nodeTo the Node to copy the childNodes to
 685  * @param {boolean} bPreserveExisting whether to preserve the original content of nodeTo, default is
 686  */
 687 Sarissa.moveChildNodes = function(nodeFrom, nodeTo, bPreserveExisting) {
 688     if((!nodeFrom) || (!nodeTo)){
 689         throw "Both source and destination nodes must be provided";
 690     }
 691     if(!bPreserveExisting){
 692         Sarissa.clearChildNodes(nodeTo);
 693     }
 694     var nodes = nodeFrom.childNodes;
 695     // if within the same doc, just move, else copy and delete
 696     if(nodeFrom.ownerDocument == nodeTo.ownerDocument){
 697         while(nodeFrom.firstChild){
 698             nodeTo.appendChild(nodeFrom.firstChild);
 699         }
 700     } else {
 701         var ownerDoc = nodeTo.nodeType == Node.DOCUMENT_NODE ? nodeTo : nodeTo.ownerDocument;
 702         var i;
 703         if(typeof(ownerDoc.importNode) != "undefined") {
 704            for(i=0;i < nodes.length;i++) {
 705                nodeTo.appendChild(ownerDoc.importNode(nodes[i], true));
 706            }
 707         }else{
 708            for(i=0;i < nodes.length;i++) {
 709                nodeTo.appendChild(nodes[i].cloneNode(true));
 710            }
 711         }
 712         Sarissa.clearChildNodes(nodeFrom);
 713     }
 714 };
 715
 716 /**
 717  * <p>Serialize any <strong>non</strong> DOM object to an XML string. All properties are serialized using the property name
 718  * as the XML element name. Array elements are rendered as <code>array-item</code> elements,
 719  * using their index/key as the value of the <code>key</code> attribute.</p>
 720  * @memberOf Sarissa
 721  * @param {Object} anyObject the object to serialize
 722  * @param {String} objectName a name for that object, to be used as the root element name
 723  * @param {String} indentSpace Optional, the indentation space to use, default is an empty
 724  *        string. A single space character is added in any recursive call.
 725  * @param {noolean} skipEscape Optional, whether to skip escaping characters that map to the
 726  *        five predefined XML entities. Default is <code>false</code>.
 727  * @return {String} the XML serialization of the given object as a string
 728  */
 729 Sarissa.xmlize = function(anyObject, objectName, indentSpace, skipEscape){
 730     indentSpace = indentSpace?indentSpace:'';
 731     var s = indentSpace  + '<' + objectName + '>';
 732     var isLeaf = false;
 733     if(!(anyObject instanceof Object) || anyObject instanceof Number || anyObject instanceof String || anyObject instanceof Boolean || anyObject instanceof Date){
 734         s += (skipEscape ? Sarissa.escape(anyObject) : anyObject);
 735         isLeaf = true;
 736     }else{
 737         s += "\n";
 738         var isArrayItem = anyObject instanceof Array;
 739         for(var name in anyObject){
 740                 // do not xmlize functions
 741                 if (anyObject[name] instanceof Function){
 742                         continue;
 743                 }
 744             s += Sarissa.xmlize(anyObject[name], (isArrayItem?"array-item key=\""+name+"\"":name), indentSpace + " ");
 745         }
 746         s += indentSpace;
 747     }
 748     return (s += (objectName.indexOf(' ')!=-1?"</array-item>\n":"</" + objectName + ">\n"));
 749 };
 750
 751 /**
 752  * Escape the given string chacters that correspond to the five predefined XML entities
 753  * @memberOf Sarissa
 754  * @param {String} sXml the string to escape
 755  */
 756 Sarissa.escape = function(sXml){
 757     return sXml.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;").replace(/'/g, "&apos;");
 758 };
 759
 760 /**
 761  * Unescape the given string. This turns the occurences of the predefined XML
 762  * entities to become the characters they represent correspond to the five predefined XML entities
 763  * @memberOf Sarissa
 764  * @param  {String}sXml the string to unescape
 765  */
 766 Sarissa.unescape = function(sXml){
 767     return sXml.replace(/&apos;/g,"'").replace(/&quot;/g,"\"").replace(/&gt;/g,">").replace(/&lt;/g,"<").replace(/&amp;/g,"&");
 768 };
 769
 770 /** @private */
 771 Sarissa.updateCursor = function(oTargetElement, sValue) {
 772     if(oTargetElement && oTargetElement.style && oTargetElement.style.cursor != undefined ){
 773         oTargetElement.style.cursor = sValue;
 774     }
 775 };
 776
 777 /**
 778  * Asynchronously update an element with response of a GET request on the given URL.  Passing a configured XSLT
 779  * processor will result in transforming and updating oNode before using it to update oTargetElement.
 780  * You can also pass a callback function to be executed when the update is finished. The function will be called as
 781  * <code>functionName(oNode, oTargetElement);</code>
 782  * @memberOf Sarissa
 783  * @param {String} sFromUrl the URL to make the request to
 784  * @param {DOMElement} oTargetElement the element to update
 785  * @param {XSLTProcessor} xsltproc (optional) the transformer to use on the returned
 786  *                  content before updating the target element with it
 787  * @param {Function} callback (optional) a Function object to execute once the update is finished successfuly, called as <code>callback(sFromUrl, oTargetElement)</code>.
 788  *        In case an exception is thrown during execution, the callback is called as called as <code>callback(sFromUrl, oTargetElement, oException)</code>
 789  * @param {boolean} skipCache (optional) whether to skip any cache
 790  */
 791 Sarissa.updateContentFromURI = function(sFromUrl, oTargetElement, xsltproc, callback, skipCache) {
 792     try{
 793         Sarissa.updateCursor(oTargetElement, "wait");
 794         var xmlhttp = new XMLHttpRequest();
 795         xmlhttp.open("GET", sFromUrl, true);
 796         xmlhttp.onreadystatechange = function() {
 797             if (xmlhttp.readyState == 4) {
 798                 try{
 799                         var oDomDoc = xmlhttp.responseXML;
 800                         if(oDomDoc && Sarissa.getParseErrorText(oDomDoc) == Sarissa.PARSED_OK){
 801                                 Sarissa.updateContentFromNode(xmlhttp.responseXML, oTargetElement, xsltproc);
 802                                         if(callback){
 803                                         callback(sFromUrl, oTargetElement);
 804                                 }
 805                         }
 806                         else{
 807                                 throw Sarissa.getParseErrorText(oDomDoc);
 808                         }
 809                 }
 810                 catch(e){
 811                         if(callback){
 812                                         callback(sFromUrl, oTargetElement, e);
 813                                 }
 814                                 else{
 815                                         throw e;
 816                                 }
 817                 }
 818             }
 819         };
 820         if (skipCache) {
 821              var oldage = "Sat, 1 Jan 2000 00:00:00 GMT";
 822              xmlhttp.setRequestHeader("If-Modified-Since", oldage);
 823         }
 824         xmlhttp.send("");
 825     }
 826     catch(e){
 827         Sarissa.updateCursor(oTargetElement, "auto");
 828         if(callback){
 829                 callback(sFromUrl, oTargetElement, e);
 830         }
 831         else{
 832                 throw e;
 833         }
 834     }
 835 };
 836
 837 /**
 838  * Update an element's content with the given DOM node. Passing a configured XSLT
 839  * processor will result in transforming and updating oNode before using it to update oTargetElement.
 840  * You can also pass a callback function to be executed when the update is finished. The function will be called as
 841  * <code>functionName(oNode, oTargetElement);</code>
 842  * @memberOf Sarissa
 843  * @param {DOMNode} oNode the URL to make the request to
 844  * @param {DOMElement} oTargetElement the element to update
 845  * @param {XSLTProcessor} xsltproc (optional) the transformer to use on the given
 846  *                  DOM node before updating the target element with it
 847  */
 848 Sarissa.updateContentFromNode = function(oNode, oTargetElement, xsltproc) {
 849     try {
 850         Sarissa.updateCursor(oTargetElement, "wait");
 851         Sarissa.clearChildNodes(oTargetElement);
 852         // check for parsing errors
 853         var ownerDoc = oNode.nodeType == Node.DOCUMENT_NODE?oNode:oNode.ownerDocument;
 854         if(ownerDoc.parseError && ownerDoc.parseError.errorCode != 0) {
 855             var pre = document.createElement("pre");
 856             pre.appendChild(document.createTextNode(Sarissa.getParseErrorText(ownerDoc)));
 857             oTargetElement.appendChild(pre);
 858         }
 859         else {
 860             // transform if appropriate
 861             if(xsltproc) {
 862                 oNode = xsltproc.transformToDocument(oNode);
 863             }
 864             // be smart, maybe the user wants to display the source instead
 865             if(oTargetElement.tagName.toLowerCase() == "textarea" || oTargetElement.tagName.toLowerCase() == "input") {
 866                 oTargetElement.value = new XMLSerializer().serializeToString(oNode);
 867             }
 868             else {
 869                 // ok that was not smart; it was paranoid. Keep up the good work by trying to use DOM instead of innerHTML
 870                 try{
 871                     oTargetElement.appendChild(oTargetElement.ownerDocument.importNode(oNode, true));
 872                 }
 873                 catch(e){
 874                     oTargetElement.innerHTML = new XMLSerializer().serializeToString(oNode);
 875                 }
 876             }
 877         }
 878     }
 879     catch(e) {
 880         throw e;
 881     }
 882     finally{
 883         Sarissa.updateCursor(oTargetElement, "auto");
 884     }
 885 };
 886
 887
 888 /**
 889  * Creates an HTTP URL query string from the given HTML form data
 890  * @memberOf Sarissa
 891  * @param {HTMLFormElement} oForm the form to construct the query string from
 892  */
 893 Sarissa.formToQueryString = function(oForm){
 894     var qs = "";
 895     for(var i = 0;i < oForm.elements.length;i++) {
 896         var oField = oForm.elements[i];
 897         var sFieldName = oField.getAttribute("name") ? oField.getAttribute("name") : oField.getAttribute("id");
 898         // ensure we got a proper name/id and that the field is not disabled
 899         if(sFieldName &&
 900             ((!oField.disabled) || oField.type == "hidden")) {
 901             switch(oField.type) {
 902                 case "hidden":
 903                 case "text":
 904                 case "textarea":
 905                 case "password":
 906                     qs += sFieldName + "=" + encodeURIComponent(oField.value) + "&";
 907                     break;
 908                 case "select-one":
 909                     qs += sFieldName + "=" + encodeURIComponent(oField.options[oField.selectedIndex].value) + "&";
 910                     break;
 911                 case "select-multiple":
 912                     for (var j = 0; j < oField.length; j++) {
 913                         var optElem = oField.options[j];
 914                         if (optElem.selected === true) {
 915                             qs += sFieldName + "[]" + "=" + encodeURIComponent(optElem.value) + "&";
 916                         }
 917                      }
 918                      break;
 919                 case "checkbox":
 920                 case "radio":
 921                     if(oField.checked) {
 922                         qs += sFieldName + "=" + encodeURIComponent(oField.value) + "&";
 923                     }
 924                     break;
 925             }
 926         }
 927     }
 928     // return after removing last '&'
 929     return qs.substr(0, qs.length - 1);
 930 };
 931
 932
 933 /**
 934  * Asynchronously update an element with response of an XMLHttpRequest-based emulation of a form submission. <p>The form <code>action</code> and
 935  * <code>method</code> attributess will be followed. Passing a configured XSLT processor will result in
 936  * transforming and updating the server response before using it to update the target element.
 937  * You can also pass a callback function to be executed when the update is finished. The function will be called as
 938  * <code>functionName(oNode, oTargetElement);</code></p>
 939  * <p>Here is an example of using this in a form element:</p>
 940  * <pre name="code" class="xml">
 941  * &lt;div id="targetId"&gt; this content will be updated&lt;/div&gt;
 942  * &lt;form action="/my/form/handler" method="post"
 943  *     onbeforesubmit="return Sarissa.updateContentFromForm(this, document.getElementById('targetId'));"&gt;<pre>
 944  * <p>If JavaScript is supported, the form will not be submitted. Instead, Sarissa will
 945  * scan the form and make an appropriate AJAX request, also adding a parameter
 946  * to signal to the server that this is an AJAX call. The parameter is
 947  * constructed as <code>Sarissa.REMOTE_CALL_FLAG = "=true"</code> so you can change the name in your webpage
 948  * simply by assigning another value to Sarissa.REMOTE_CALL_FLAG. If JavaScript is not supported
 949  * the form will be submitted normally.
 950  * @memberOf Sarissa
 951  * @param {HTMLFormElement} oForm the form submition to emulate
 952  * @param {DOMElement} oTargetElement the element to update
 953  * @param {XSLTProcessor} xsltproc (optional) the transformer to use on the returned
 954  *                  content before updating the target element with it
 955  * @param {Function} callback (optional) a Function object to execute once the update is finished successfuly, called as <code>callback(oNode, oTargetElement)</code>.
 956  *        In case an exception occurs during excecution and a callback function was provided, the exception is cought and the callback is called as
 957  *        <code>callback(oForm, oTargetElement, exception)</code>
 958  */
 959 Sarissa.updateContentFromForm = function(oForm, oTargetElement, xsltproc, callback) {
 960     try{
 961         Sarissa.updateCursor(oTargetElement, "wait");
 962         // build parameters from form fields
 963         var params = Sarissa.formToQueryString(oForm) + "&" + Sarissa.REMOTE_CALL_FLAG + "=true";
 964         var xmlhttp = new XMLHttpRequest();
 965         var bUseGet = oForm.getAttribute("method") && oForm.getAttribute("method").toLowerCase() == "get";
 966         if(bUseGet) {
 967             xmlhttp.open("GET", oForm.getAttribute("action")+"?"+params, true);
 968         }
 969         else{
 970             xmlhttp.open('POST', oForm.getAttribute("action"), true);
 971             xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 972             xmlhttp.setRequestHeader("Content-length", params.length);
 973             xmlhttp.setRequestHeader("Connection", "close");
 974         }
 975         xmlhttp.onreadystatechange = function() {
 976                 try{
 977                     if (xmlhttp.readyState == 4) {
 978                         var oDomDoc = xmlhttp.responseXML;
 979                         if(oDomDoc && Sarissa.getParseErrorText(oDomDoc) == Sarissa.PARSED_OK){
 980                                 Sarissa.updateContentFromNode(xmlhttp.responseXML, oTargetElement, xsltproc);
 981                                         if(callback){
 982                                         callback(oForm, oTargetElement);
 983                                 }
 984                         }
 985                         else{
 986                                 throw Sarissa.getParseErrorText(oDomDoc);
 987                         }
 988                     }
 989                 }
 990                 catch(e){
 991                         if(callback){
 992                                 callback(oForm, oTargetElement, e);
 993                         }
 994                         else{
 995                                 throw e;
 996                         }
 997                 }
 998         };
 999         xmlhttp.send(bUseGet?"":params);
1000     }
1001     catch(e){
1002         Sarissa.updateCursor(oTargetElement, "auto");
1003         if(callback){
1004                 callback(oForm, oTargetElement, e);
1005         }
1006         else{
1007                 throw e;
1008         }
1009     }
1010     return false;
1011 };
1012
1013 /**
1014  * Get the name of a function created like:
1015  * <pre>function functionName(){}</pre>
1016  * If a name is not found, attach the function to
1017  * the window object with a new name and return that
1018  * @param {Function} oFunc the function object
1019  */
1020 Sarissa.getFunctionName = function(oFunc){
1021         if(!oFunc || (typeof oFunc != 'function' )){
1022                 throw "The value of parameter 'oFunc' must be a function";
1023         }
1024         if(oFunc.name) {
1025                 return oFunc.name;
1026         }
1027         // try to parse the function name from the defintion
1028         var sFunc = oFunc.toString();
1029         alert("sFunc: "+sFunc);
1030         var name = sFunc.substring(sFunc.indexOf('function') + 8 , sFunc.indexOf('('));
1031         if(!name || name.length == 0 || name == " "){
1032                 // attach to window object under a new name
1033                 name = "SarissaAnonymous" + Sarissa._getUniqueSuffix();
1034                 window[name] = oFunc;
1035         }
1036         return name;
1037 };
1038
1039 /**
1040  *
1041  */
1042 Sarissa.setRemoteJsonCallback = function(url, callback, callbackParam) {
1043         if(!callbackParam){
1044                 callbackParam = "callback";
1045         }
1046         var callbackFunctionName = Sarissa.getFunctionName(callback);
1047         //alert("callbackFunctionName: '" + callbackFunctionName+"', length: "+callbackFunctionName.length);
1048         var id = "sarissa_json_script_id_" + Sarissa._getUniqueSuffix();
1049         var oHead = document.getElementsByTagName("head")[0];
1050         var scriptTag = document.createElement('script');
1051         scriptTag.type = 'text/javascript';
1052         scriptTag.id = id;
1053         scriptTag.onload = function(){
1054                 // cleanUp
1055                 // document.removeChild(scriptTag);
1056         };
1057         if(url.indexOf("?") != -1){
1058                 url += ("&" + callbackParam + "=" + callbackFunctionName);
1059         }
1060         else{
1061                 url += ("?" + callbackParam + "=" + callbackFunctionName);
1062         }
1063         scriptTag.src = url;
1064         oHead.appendChild(scriptTag);
1065         return id;
1066 };
1067
1068 //   EOF