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 <pre>
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, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
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(/'/g,"'").replace(/"/g,"\"").replace(/>/g,">").replace(/</g,"<").replace(/&/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  * <div id="targetId"> this content will be updated</div>
942  * <form action="/my/form/handler" method="post" 
943  *     onbeforesubmit="return Sarissa.updateContentFromForm(this, document.getElementById('targetId'));"><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
1069