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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.io.common");
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dojo.require("dojo.string");
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dojo.require("dojo.lang.extras");
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dojo.io.transports = [];
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dojo.io.hdlrFuncNames = ["load", "error", "timeout"];
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dojo.io.Request = function (url, mimetype, transport, changeUrl) {
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if ((arguments.length == 1) && (arguments[0].constructor == Object)) {
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this.fromKwArgs(arguments[0]);
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} else {
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this.url = url;
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if (mimetype) {
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this.mimetype = mimetype;
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}
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if (transport) {
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this.transport = transport;
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}
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if (arguments.length >= 4) {
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this.changeUrl = changeUrl;
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}
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}
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};
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dojo.lang.extend(dojo.io.Request, {url:"", mimetype:"text/plain", method:"GET", content:undefined, transport:undefined, changeUrl:undefined, formNode:undefined, sync:false, bindSuccess:false, useCache:false, preventCache:false, load:function (type, data, transportImplementation, kwArgs) {
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}, error:function (type, error, transportImplementation, kwArgs) {
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}, timeout:function (type, empty, transportImplementation, kwArgs) {
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}, handle:function (type, data, transportImplementation, kwArgs) {
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}, timeoutSeconds:0, abort:function () {
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}, fromKwArgs:function (kwArgs) {
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if (kwArgs["url"]) {
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kwArgs.url = kwArgs.url.toString();
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}
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if (kwArgs["formNode"]) {
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kwArgs.formNode = dojo.byId(kwArgs.formNode);
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}
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if (!kwArgs["method"] && kwArgs["formNode"] && kwArgs["formNode"].method) {
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kwArgs.method = kwArgs["formNode"].method;
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}
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if (!kwArgs["handle"] && kwArgs["handler"]) {
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kwArgs.handle = kwArgs.handler;
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}
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if (!kwArgs["load"] && kwArgs["loaded"]) {
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kwArgs.load = kwArgs.loaded;
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}
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if (!kwArgs["changeUrl"] && kwArgs["changeURL"]) {
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kwArgs.changeUrl = kwArgs.changeURL;
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}
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kwArgs.encoding = dojo.lang.firstValued(kwArgs["encoding"], djConfig["bindEncoding"], "");
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kwArgs.sendTransport = dojo.lang.firstValued(kwArgs["sendTransport"], djConfig["ioSendTransport"], false);
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var isFunction = dojo.lang.isFunction;
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for (var x = 0; x < dojo.io.hdlrFuncNames.length; x++) {
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var fn = dojo.io.hdlrFuncNames[x];
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if (kwArgs[fn] && isFunction(kwArgs[fn])) {
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continue;
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}
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if (kwArgs["handle"] && isFunction(kwArgs["handle"])) {
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kwArgs[fn] = kwArgs.handle;
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}
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}
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dojo.lang.mixin(this, kwArgs);
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}});
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dojo.io.Error = function (msg, type, num) {
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this.message = msg;
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this.type = type || "unknown";
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this.number = num || 0;
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};
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dojo.io.transports.addTransport = function (name) {
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this.push(name);
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this[name] = dojo.io[name];
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};
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dojo.io.bind = function (request) {
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if (!(request instanceof dojo.io.Request)) {
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try {
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request = new dojo.io.Request(request);
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}
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catch (e) {
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dojo.debug(e);
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}
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}
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var tsName = "";
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if (request["transport"]) {
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tsName = request["transport"];
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if (!this[tsName]) {
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dojo.io.sendBindError(request, "No dojo.io.bind() transport with name '" + request["transport"] + "'.");
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return request;
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}
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if (!this[tsName].canHandle(request)) {
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dojo.io.sendBindError(request, "dojo.io.bind() transport with name '" + request["transport"] + "' cannot handle this type of request.");
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return request;
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}
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} else {
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for (var x = 0; x < dojo.io.transports.length; x++) {
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var tmp = dojo.io.transports[x];
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if ((this[tmp]) && (this[tmp].canHandle(request))) {
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tsName = tmp;
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break;
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}
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}
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if (tsName == "") {
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dojo.io.sendBindError(request, "None of the loaded transports for dojo.io.bind()" + " can handle the request.");
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return request;
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}
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}
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this[tsName].bind(request);
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request.bindSuccess = true;
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return request;
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};
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dojo.io.sendBindError = function (request, message) {
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if ((typeof request.error == "function" || typeof request.handle == "function") && (typeof setTimeout == "function" || typeof setTimeout == "object")) {
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var errorObject = new dojo.io.Error(message);
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setTimeout(function () {
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request[(typeof request.error == "function") ? "error" : "handle"]("error", errorObject, null, request);
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}, 50);
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} else {
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dojo.raise(message);
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}
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};
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dojo.io.queueBind = function (request) {
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if (!(request instanceof dojo.io.Request)) {
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try {
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request = new dojo.io.Request(request);
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}
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catch (e) {
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dojo.debug(e);
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}
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}
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var oldLoad = request.load;
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request.load = function () {
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dojo.io._queueBindInFlight = false;
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var ret = oldLoad.apply(this, arguments);
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dojo.io._dispatchNextQueueBind();
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return ret;
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};
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var oldErr = request.error;
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request.error = function () {
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dojo.io._queueBindInFlight = false;
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var ret = oldErr.apply(this, arguments);
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dojo.io._dispatchNextQueueBind();
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return ret;
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};
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dojo.io._bindQueue.push(request);
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dojo.io._dispatchNextQueueBind();
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return request;
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};
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dojo.io._dispatchNextQueueBind = function () {
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if (!dojo.io._queueBindInFlight) {
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dojo.io._queueBindInFlight = true;
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if (dojo.io._bindQueue.length > 0) {
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dojo.io.bind(dojo.io._bindQueue.shift());
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} else {
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dojo.io._queueBindInFlight = false;
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}
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}
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};
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dojo.io._bindQueue = [];
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dojo.io._queueBindInFlight = false;
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dojo.io.argsFromMap = function (map, encoding, last) {
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var enc = /utf/i.test(encoding || "") ? encodeURIComponent : dojo.string.encodeAscii;
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var mapped = [];
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var control = new Object();
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for (var name in map) {
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var domap = function (elt) {
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var val = enc(name) + "=" + enc(elt);
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mapped[(last == name) ? "push" : "unshift"](val);
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};
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if (!control[name]) {
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var value = map[name];
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if (dojo.lang.isArray(value)) {
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dojo.lang.forEach(value, domap);
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} else {
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domap(value);
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}
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}
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}
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return mapped.join("&");
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};
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dojo.io.setIFrameSrc = function (iframe, src, replace) {
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try {
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var r = dojo.render.html;
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if (!replace) {
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if (r.safari) {
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iframe.location = src;
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} else {
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frames[iframe.name].location = src;
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}
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} else {
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var idoc;
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if (r.ie) {
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idoc = iframe.contentWindow.document;
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} else {
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if (r.safari) {
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idoc = iframe.document;
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} else {
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idoc = iframe.contentWindow;
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}
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}
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if (!idoc) {
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iframe.location = src;
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return;
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} else {
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idoc.location.replace(src);
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}
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}
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}
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catch (e) {
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dojo.debug(e);
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dojo.debug("setIFrameSrc: " + e);
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}
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};
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