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/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.dom");
dojo.dom.ELEMENT_NODE = 1;
dojo.dom.ATTRIBUTE_NODE = 2;
dojo.dom.TEXT_NODE = 3;
dojo.dom.CDATA_SECTION_NODE = 4;
dojo.dom.ENTITY_REFERENCE_NODE = 5;
dojo.dom.ENTITY_NODE = 6;
dojo.dom.PROCESSING_INSTRUCTION_NODE = 7;
dojo.dom.COMMENT_NODE = 8;
dojo.dom.DOCUMENT_NODE = 9;
dojo.dom.DOCUMENT_TYPE_NODE = 10;
dojo.dom.DOCUMENT_FRAGMENT_NODE = 11;
dojo.dom.NOTATION_NODE = 12;
dojo.dom.dojoml = "http://www.dojotoolkit.org/2004/dojoml";
dojo.dom.xmlns = {svg:"http://www.w3.org/2000/svg", smil:"http://www.w3.org/2001/SMIL20/", mml:"http://www.w3.org/1998/Math/MathML", cml:"http://www.xml-cml.org", xlink:"http://www.w3.org/1999/xlink", xhtml:"http://www.w3.org/1999/xhtml", xul:"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", xbl:"http://www.mozilla.org/xbl", fo:"http://www.w3.org/1999/XSL/Format", xsl:"http://www.w3.org/1999/XSL/Transform", xslt:"http://www.w3.org/1999/XSL/Transform", xi:"http://www.w3.org/2001/XInclude", xforms:"http://www.w3.org/2002/01/xforms", saxon:"http://icl.com/saxon", xalan:"http://xml.apache.org/xslt", xsd:"http://www.w3.org/2001/XMLSchema", dt:"http://www.w3.org/2001/XMLSchema-datatypes", xsi:"http://www.w3.org/2001/XMLSchema-instance", rdf:"http://www.w3.org/1999/02/22-rdf-syntax-ns#", rdfs:"http://www.w3.org/2000/01/rdf-schema#", dc:"http://purl.org/dc/elements/1.1/", dcq:"http://purl.org/dc/qualifiers/1.0", "soap-env":"http://schemas.xmlsoap.org/soap/envelope/", wsdl:"http://schemas.xmlsoap.org/wsdl/", AdobeExtensions:"http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/"};
dojo.dom.isNode = function (wh) {
        if (typeof Element == "function") {
                try {
                        return wh instanceof Element;
                }
                catch (e) {
                }
        } else {
                return wh && !isNaN(wh.nodeType);
        }
};
dojo.dom.getUniqueId = function () {
        var _document = dojo.doc();
        do {
                var id = "dj_unique_" + (++arguments.callee._idIncrement);
        } while (_document.getElementById(id));
        return id;
};
dojo.dom.getUniqueId._idIncrement = 0;
dojo.dom.firstElement = dojo.dom.getFirstChildElement = function (parentNode, tagName) {
        var node = parentNode.firstChild;
        while (node && node.nodeType != dojo.dom.ELEMENT_NODE) {
                node = node.nextSibling;
        }
        if (tagName && node && node.tagName && node.tagName.toLowerCase() != tagName.toLowerCase()) {
                node = dojo.dom.nextElement(node, tagName);
        }
        return node;
};
dojo.dom.lastElement = dojo.dom.getLastChildElement = function (parentNode, tagName) {
        var node = parentNode.lastChild;
        while (node && node.nodeType != dojo.dom.ELEMENT_NODE) {
                node = node.previousSibling;
        }
        if (tagName && node && node.tagName && node.tagName.toLowerCase() != tagName.toLowerCase()) {
                node = dojo.dom.prevElement(node, tagName);
        }
        return node;
};
dojo.dom.nextElement = dojo.dom.getNextSiblingElement = function (node, tagName) {
        if (!node) {
                return null;
        }
        do {
                node = node.nextSibling;
        } while (node && node.nodeType != dojo.dom.ELEMENT_NODE);
        if (node && tagName && tagName.toLowerCase() != node.tagName.toLowerCase()) {
                return dojo.dom.nextElement(node, tagName);
        }
        return node;
};
dojo.dom.prevElement = dojo.dom.getPreviousSiblingElement = function (node, tagName) {
        if (!node) {
                return null;
        }
        if (tagName) {
                tagName = tagName.toLowerCase();
        }
        do {
                node = node.previousSibling;
        } while (node && node.nodeType != dojo.dom.ELEMENT_NODE);
        if (node && tagName && tagName.toLowerCase() != node.tagName.toLowerCase()) {
                return dojo.dom.prevElement(node, tagName);
        }
        return node;
};
dojo.dom.moveChildren = function (srcNode, destNode, trim) {
        var count = 0;
        if (trim) {
                while (srcNode.hasChildNodes() && srcNode.firstChild.nodeType == dojo.dom.TEXT_NODE) {
                        srcNode.removeChild(srcNode.firstChild);
                }
                while (srcNode.hasChildNodes() && srcNode.lastChild.nodeType == dojo.dom.TEXT_NODE) {
                        srcNode.removeChild(srcNode.lastChild);
                }
        }
        while (srcNode.hasChildNodes()) {
                destNode.appendChild(srcNode.firstChild);
                count++;
        }
        return count;
};
dojo.dom.copyChildren = function (srcNode, destNode, trim) {
        var clonedNode = srcNode.cloneNode(true);
        return this.moveChildren(clonedNode, destNode, trim);
};
dojo.dom.replaceChildren = function (node, newChild) {
        var nodes = [];
        if (dojo.render.html.ie) {
                for (var i = 0; i < node.childNodes.length; i++) {
                        nodes.push(node.childNodes[i]);
                }
        }
        dojo.dom.removeChildren(node);
        node.appendChild(newChild);
        for (var i = 0; i < nodes.length; i++) {
                dojo.dom.destroyNode(nodes[i]);
        }
};
dojo.dom.removeChildren = function (node) {
        var count = node.childNodes.length;
        while (node.hasChildNodes()) {
                dojo.dom.removeNode(node.firstChild);
        }
        return count;
};
dojo.dom.replaceNode = function (node, newNode) {
        return node.parentNode.replaceChild(newNode, node);
};
dojo.dom.destroyNode = function (node) {
        if (node.parentNode) {
                node = dojo.dom.removeNode(node);
        }
        if (node.nodeType != 3) {
                if (dojo.evalObjPath("dojo.event.browser.clean", false)) {
                        dojo.event.browser.clean(node);
                }
                if (dojo.render.html.ie) {
                        node.outerHTML = "";
                }
        }
};
dojo.dom.removeNode = function (node) {
        if (node && node.parentNode) {
                return node.parentNode.removeChild(node);
        }
};
dojo.dom.getAncestors = function (node, filterFunction, returnFirstHit) {
        var ancestors = [];
        var isFunction = (filterFunction && (filterFunction instanceof Function || typeof filterFunction == "function"));
        while (node) {
                if (!isFunction || filterFunction(node)) {
                        ancestors.push(node);
                }
                if (returnFirstHit && ancestors.length > 0) {
                        return ancestors[0];
                }
                node = node.parentNode;
        }
        if (returnFirstHit) {
                return null;
        }
        return ancestors;
};
dojo.dom.getAncestorsByTag = function (node, tag, returnFirstHit) {
        tag = tag.toLowerCase();
        return dojo.dom.getAncestors(node, function (el) {
                return ((el.tagName) && (el.tagName.toLowerCase() == tag));
        }, returnFirstHit);
};
dojo.dom.getFirstAncestorByTag = function (node, tag) {
        return dojo.dom.getAncestorsByTag(node, tag, true);
};
dojo.dom.isDescendantOf = function (node, ancestor, guaranteeDescendant) {
        if (guaranteeDescendant && node) {
                node = node.parentNode;
        }
        while (node) {
                if (node == ancestor) {
                        return true;
                }
                node = node.parentNode;
        }
        return false;
};
dojo.dom.innerXML = function (node) {
        if (node.innerXML) {
                return node.innerXML;
        } else {
                if (node.xml) {
                        return node.xml;
                } else {
                        if (typeof XMLSerializer != "undefined") {
                                return (new XMLSerializer()).serializeToString(node);
                        }
                }
        }
};
dojo.dom.createDocument = function () {
        var doc = null;
        var _document = dojo.doc();
        if (!dj_undef("ActiveXObject")) {
                var prefixes = ["MSXML2", "Microsoft", "MSXML", "MSXML3"];
                for (var i = 0; i < prefixes.length; i++) {
                        try {
                                doc = new ActiveXObject(prefixes[i] + ".XMLDOM");
                        }
                        catch (e) {
                        }
                        if (doc) {
                                break;
                        }
                }
        } else {
                if ((_document.implementation) && (_document.implementation.createDocument)) {
                        doc = _document.implementation.createDocument("", "", null);
                }
        }
        return doc;
};
dojo.dom.createDocumentFromText = function (str, mimetype) {
        if (!mimetype) {
                mimetype = "text/xml";
        }
        if (!dj_undef("DOMParser")) {
                var parser = new DOMParser();
                return parser.parseFromString(str, mimetype);
        } else {
                if (!dj_undef("ActiveXObject")) {
                        var domDoc = dojo.dom.createDocument();
                        if (domDoc) {
                                domDoc.async = false;
                                domDoc.loadXML(str);
                                return domDoc;
                        } else {
                                dojo.debug("toXml didn't work?");
                        }
                } else {
                        var _document = dojo.doc();
                        if (_document.createElement) {
                                var tmp = _document.createElement("xml");
                                tmp.innerHTML = str;
                                if (_document.implementation && _document.implementation.createDocument) {
                                        var xmlDoc = _document.implementation.createDocument("foo", "", null);
                                        for (var i = 0; i < tmp.childNodes.length; i++) {
                                                xmlDoc.importNode(tmp.childNodes.item(i), true);
                                        }
                                        return xmlDoc;
                                }
                                return ((tmp.document) && (tmp.document.firstChild ? tmp.document.firstChild : tmp));
                        }
                }
        }
        return null;
};
dojo.dom.prependChild = function (node, parent) {
        if (parent.firstChild) {
                parent.insertBefore(node, parent.firstChild);
        } else {
                parent.appendChild(node);
        }
        return true;
};
dojo.dom.insertBefore = function (node, ref, force) {
        if ((force != true) && (node === ref || node.nextSibling === ref)) {
                return false;
        }
        var parent = ref.parentNode;
        parent.insertBefore(node, ref);
        return true;
};
dojo.dom.insertAfter = function (node, ref, force) {
        var pn = ref.parentNode;
        if (ref == pn.lastChild) {
                if ((force != true) && (node === ref)) {
                        return false;
                }
                pn.appendChild(node);
        } else {
                return this.insertBefore(node, ref.nextSibling, force);
        }
        return true;
};
dojo.dom.insertAtPosition = function (node, ref, position) {
        if ((!node) || (!ref) || (!position)) {
                return false;
        }
        switch (position.toLowerCase()) {
          case "before":
                return dojo.dom.insertBefore(node, ref);
          case "after":
                return dojo.dom.insertAfter(node, ref);
          case "first":
                if (ref.firstChild) {
                        return dojo.dom.insertBefore(node, ref.firstChild);
                } else {
                        ref.appendChild(node);
                        return true;
                }
                break;
          default:
                ref.appendChild(node);
                return true;
        }
};
dojo.dom.insertAtIndex = function (node, containingNode, insertionIndex) {
        var siblingNodes = containingNode.childNodes;
        if (!siblingNodes.length || siblingNodes.length == insertionIndex) {
                containingNode.appendChild(node);
                return true;
        }
        if (insertionIndex == 0) {
                return dojo.dom.prependChild(node, containingNode);
        }
        return dojo.dom.insertAfter(node, siblingNodes[insertionIndex - 1]);
};
dojo.dom.textContent = function (node, text) {
        if (arguments.length > 1) {
                var _document = dojo.doc();
                dojo.dom.replaceChildren(node, _document.createTextNode(text));
                return text;
        } else {
                if (node.textContent != undefined) {
                        return node.textContent;
                }
                var _result = "";
                if (node == null) {
                        return _result;
                }
                for (var i = 0; i < node.childNodes.length; i++) {
                        switch (node.childNodes[i].nodeType) {
                          case 1:
                          case 5:
                                _result += dojo.dom.textContent(node.childNodes[i]);
                                break;
                          case 3:
                          case 2:
                          case 4:
                                _result += node.childNodes[i].nodeValue;
                                break;
                          default:
                                break;
                        }
                }
                return _result;
        }
};
dojo.dom.hasParent = function (node) {
        return Boolean(node && node.parentNode && dojo.dom.isNode(node.parentNode));
};
dojo.dom.isTag = function (node) {
        if (node && node.tagName) {
                for (var i = 1; i < arguments.length; i++) {
                        if (node.tagName == String(arguments[i])) {
                                return String(arguments[i]);
                        }
                }
        }
        return "";
};
dojo.dom.setAttributeNS = function (elem, namespaceURI, attrName, attrValue) {
        if (elem == null || ((elem == undefined) && (typeof elem == "undefined"))) {
                dojo.raise("No element given to dojo.dom.setAttributeNS");
        }
        if (!((elem.setAttributeNS == undefined) && (typeof elem.setAttributeNS == "undefined"))) {
                elem.setAttributeNS(namespaceURI, attrName, attrValue);
        } else {
                var ownerDoc = elem.ownerDocument;
                var attribute = ownerDoc.createNode(2, attrName, namespaceURI);
                attribute.nodeValue = attrValue;
                elem.setAttributeNode(attribute);
        }
};