/*
Copyright (c) 2008, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.5.2
*/
YAHOO.util.Connect = { _msxml_progid: ["Microsoft.XMLHTTP", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP"], _http_headers: {}, _has_http_headers: false, _use_default_post_header: true, _default_post_header: "application/x-www-form-urlencoded; charset=UTF-8", _default_form_header: "application/x-www-form-urlencoded", _use_default_xhr_header: true, _default_xhr_header: "XMLHttpRequest", _has_default_headers: true, _default_headers: {}, _isFormSubmit: false, _isFileUpload: false, _formNode: null, _sFormData: null, _poll: {}, _timeOut: {}, _polling_interval: 50, _transaction_id: 0, _submitElementValue: null, _hasSubmitListener: (function() { if (YAHOO.util.Event) { YAHOO.util.Event.addListener(document, "click", function(B) { var A = YAHOO.util.Event.getTarget(B); if (A.nodeName.toLowerCase() == "input" && (A.type && A.type.toLowerCase() == "submit")) { YAHOO.util.Connect._submitElementValue = encodeURIComponent(A.name) + "=" + encodeURIComponent(A.value); } }); return true; } return false; })(), startEvent: new YAHOO.util.CustomEvent("start"), completeEvent: new YAHOO.util.CustomEvent("complete"), successEvent: new YAHOO.util.CustomEvent("success"), failureEvent: new YAHOO.util.CustomEvent("failure"), uploadEvent: new YAHOO.util.CustomEvent("upload"), abortEvent: new YAHOO.util.CustomEvent("abort"), _customEvents: { onStart: ["startEvent", "start"], onComplete: ["completeEvent", "complete"], onSuccess: ["successEvent", "success"], onFailure: ["failureEvent", "failure"], onUpload: ["uploadEvent", "upload"], onAbort: ["abortEvent", "abort"] }, setProgId: function(A) { this._msxml_progid.unshift(A); YAHOO.log("ActiveX Program Id  " + A + " added to _msxml_progid.", "info", "Connection"); }, setDefaultPostHeader: function(A) { if (typeof A == "string") { this._default_post_header = A; YAHOO.log("Default POST header set to  " + A, "info", "Connection"); } else { if (typeof A == "boolean") { this._use_default_post_header = A; } } }, setDefaultXhrHeader: function(A) { if (typeof A == "string") { this._default_xhr_header = A; YAHOO.log("Default XHR header set to  " + A, "info", "Connection"); } else { this._use_default_xhr_header = A; } }, setPollingInterval: function(A) { if (typeof A == "number" && isFinite(A)) { this._polling_interval = A; YAHOO.log("Default polling interval set to " + A + "ms", "info", "Connection"); } }, createXhrObject: function(E) { var D, A; try { A = new XMLHttpRequest(); D = { conn: A, tId: E }; YAHOO.log("XHR object created for transaction " + E, "info", "Connection"); } catch (C) { for (var B = 0; B < this._msxml_progid.length; ++B) { try { A = new ActiveXObject(this._msxml_progid[B]); D = { conn: A, tId: E }; YAHOO.log("ActiveX XHR object created for transaction " + E, "info", "Connection"); break; } catch (C) { } } } finally { return D; } }, getConnectionObject: function(A) { var C; var D = this._transaction_id; try { if (!A) { C = this.createXhrObject(D); } else { C = {}; C.tId = D; C.isUpload = true; } if (C) { this._transaction_id++; } } catch (B) { } finally { return C; } }, asyncRequest: function(F, C, E, A) { var D = (this._isFileUpload) ? this.getConnectionObject(true) : this.getConnectionObject(); var B = (E && E.argument) ? E.argument : null; if (!D) { YAHOO.log("Unable to create connection object.", "error", "Connection"); return null; } else { if (E && E.customevents) { this.initCustomEvents(D, E); } if (this._isFormSubmit) { if (this._isFileUpload) { this.uploadFile(D, E, C, A); return D; } if (F.toUpperCase() == "GET") { if (this._sFormData.length !== 0) { C += ((C.indexOf("?") == -1) ? "?" : "&") + this._sFormData; } } else { if (F.toUpperCase() == "POST") { A = A ? this._sFormData + "&" + A : this._sFormData; } } } if (F.toUpperCase() == "GET" && (E && E.cache === false)) { C += ((C.indexOf("?") == -1) ? "?" : "&") + "rnd=" + new Date().valueOf().toString(); } D.conn.open(F, C, true); if (this._use_default_xhr_header) { if (!this._default_headers["X-Requested-With"]) { this.initHeader("X-Requested-With", this._default_xhr_header, true); YAHOO.log("Initialize transaction header X-Request-Header to XMLHttpRequest.", "info", "Connection"); } } if ((F.toUpperCase() == "POST" && this._use_default_post_header) && this._isFormSubmit === false) { this.initHeader("Content-Type", this._default_post_header); YAHOO.log("Initialize header Content-Type to application/x-www-form-urlencoded; UTF-8 for POST transaction.", "info", "Connection"); } if (this._has_default_headers || this._has_http_headers) { this.setHeader(D); } this.handleReadyState(D, E); D.conn.send(A || ""); YAHOO.log("Transaction " + D.tId + " sent.", "info", "Connection"); if (this._isFormSubmit === true) { this.resetFormState(); } this.startEvent.fire(D, B); if (D.startEvent) { D.startEvent.fire(D, B); } return D; } }, initCustomEvents: function(A, C) { for (var B in C.customevents) { if (this._customEvents[B][0]) { A[this._customEvents[B][0]] = new YAHOO.util.CustomEvent(this._customEvents[B][1], (C.scope) ? C.scope : null); YAHOO.log("Transaction-specific Custom Event " + A[this._customEvents[B][1]] + " created.", "info", "Connection"); A[this._customEvents[B][0]].subscribe(C.customevents[B]); YAHOO.log("Transaction-specific Custom Event " + A[this._customEvents[B][1]] + " subscribed.", "info", "Connection"); } } }, handleReadyState: function(C, D) { var B = this; var A = (D && D.argument) ? D.argument : null; if (D && D.timeout) { this._timeOut[C.tId] = window.setTimeout(function() { B.abort(C, D, true); }, D.timeout); } this._poll[C.tId] = window.setInterval(function() { if (C.conn && C.conn.readyState === 4) { window.clearInterval(B._poll[C.tId]); delete B._poll[C.tId]; if (D && D.timeout) { window.clearTimeout(B._timeOut[C.tId]); delete B._timeOut[C.tId]; } B.completeEvent.fire(C, A); if (C.completeEvent) { C.completeEvent.fire(C, A); } B.handleTransactionResponse(C, D); } }, this._polling_interval); }, handleTransactionResponse: function(F, G, A) {
    var D, C; var B = (G && G.argument) ? G.argument : null; try { if (F.conn.status !== undefined && F.conn.status !== 0) { D = F.conn.status; } else { D = 13030; } } catch (E) { D = 13030; } if (D >= 200 && D < 300 || D === 1223) { C = this.createResponseObject(F, B); if (G && G.success) { if (!G.scope) { G.success(C); YAHOO.log("Success callback. HTTP code is " + D, "info", "Connection"); } else { G.success.apply(G.scope, [C]); YAHOO.log("Success callback with scope. HTTP code is " + D, "info", "Connection"); } } this.successEvent.fire(C); if (F.successEvent) { F.successEvent.fire(C); } } else {
        switch (D) {
            case 12002: case 12029: case 12030: case 12031: case 12152: case 13030: C = this.createExceptionObject(F.tId, B, (A ? A : false)); if (G && G.failure) {
                    if (!G.scope) {
                        G.failure(C);
                        YAHOO.log("Failure callback. Exception detected. Status code is " + D, "warn", "Connection");
                    } else { G.failure.apply(G.scope, [C]); YAHOO.log("Failure callback with scope. Exception detected. Status code is " + D, "warn", "Connection"); } 
                } break; default: C = this.createResponseObject(F, B); if (G && G.failure) { if (!G.scope) { G.failure(C); YAHOO.log("Failure callback. HTTP status code is " + D, "warn", "Connection"); } else { G.failure.apply(G.scope, [C]); YAHOO.log("Failure callback with scope. HTTP status code is " + D, "warn", "Connection"); } } 
        } this.failureEvent.fire(C); if (F.failureEvent) { F.failureEvent.fire(C); } 
    } this.releaseObject(F); C = null;
}, createResponseObject: function(A, G) { var D = {}; var I = {}; try { var C = A.conn.getAllResponseHeaders(); var F = C.split("\n"); for (var E = 0; E < F.length; E++) { var B = F[E].indexOf(":"); if (B != -1) { I[F[E].substring(0, B)] = F[E].substring(B + 2); } } } catch (H) { } D.tId = A.tId; D.status = (A.conn.status == 1223) ? 204 : A.conn.status; D.statusText = (A.conn.status == 1223) ? "No Content" : A.conn.statusText; D.getResponseHeader = I; D.getAllResponseHeaders = C; D.responseText = A.conn.responseText; D.responseXML = A.conn.responseXML; if (G) { D.argument = G; } return D; }, createExceptionObject: function(H, D, A) { var F = 0; var G = "communication failure"; var C = -1; var B = "transaction aborted"; var E = {}; E.tId = H; if (A) { E.status = C; E.statusText = B; } else { E.status = F; E.statusText = G; } if (D) { E.argument = D; } return E; }, initHeader: function(A, D, C) { var B = (C) ? this._default_headers : this._http_headers; B[A] = D; if (C) { this._has_default_headers = true; } else { this._has_http_headers = true; } }, setHeader: function(A) { if (this._has_default_headers) { for (var B in this._default_headers) { if (YAHOO.lang.hasOwnProperty(this._default_headers, B)) { A.conn.setRequestHeader(B, this._default_headers[B]); YAHOO.log("Default HTTP header " + B + " set with value of " + this._default_headers[B], "info", "Connection"); } } } if (this._has_http_headers) { for (var B in this._http_headers) { if (YAHOO.lang.hasOwnProperty(this._http_headers, B)) { A.conn.setRequestHeader(B, this._http_headers[B]); YAHOO.log("HTTP header " + B + " set with value of " + this._http_headers[B], "info", "Connection"); } } delete this._http_headers; this._http_headers = {}; this._has_http_headers = false; } }, resetDefaultHeaders: function() { delete this._default_headers; this._default_headers = {}; this._has_default_headers = false; }, setForm: function(K, E, B) { this.resetFormState(); var J; if (typeof K == "string") { J = (document.getElementById(K) || document.forms[K]); } else { if (typeof K == "object") { J = K; } else { YAHOO.log("Unable to create form object " + K, "warn", "Connection"); return; } } if (E) { var F = this.createFrame((window.location.href.toLowerCase().indexOf("https") === 0 || B) ? true : false); this._isFormSubmit = true; this._isFileUpload = true; this._formNode = J; return; } var A, I, G, L; var H = false; for (var D = 0; D < J.elements.length; D++) { A = J.elements[D]; L = A.disabled; I = A.name; G = A.value; if (!L && I) { switch (A.type) { case "select-one": case "select-multiple": for (var C = 0; C < A.options.length; C++) { if (A.options[C].selected) { if (window.ActiveXObject) { this._sFormData += encodeURIComponent(I) + "=" + encodeURIComponent(A.options[C].attributes["value"].specified ? A.options[C].value : A.options[C].text) + "&"; } else { this._sFormData += encodeURIComponent(I) + "=" + encodeURIComponent(A.options[C].hasAttribute("value") ? A.options[C].value : A.options[C].text) + "&"; } } } break; case "radio": case "checkbox": if (A.checked) { this._sFormData += encodeURIComponent(I) + "=" + encodeURIComponent(G) + "&"; } break; case "file": case undefined: case "reset": case "button": break; case "submit": if (H === false) { if (this._hasSubmitListener && this._submitElementValue) { this._sFormData += this._submitElementValue + "&"; } else { this._sFormData += encodeURIComponent(I) + "=" + encodeURIComponent(G) + "&"; } H = true; } break; default: this._sFormData += encodeURIComponent(I) + "=" + encodeURIComponent(G) + "&"; } } } this._isFormSubmit = true; this._sFormData = this._sFormData.substr(0, this._sFormData.length - 1); YAHOO.log("Form initialized for transaction. HTML form POST message is: " + this._sFormData, "info", "Connection"); this.initHeader("Content-Type", this._default_form_header); YAHOO.log("Initialize header Content-Type to application/x-www-form-urlencoded for setForm() transaction.", "info", "Connection"); return this._sFormData; }, resetFormState: function() { this._isFormSubmit = false; this._isFileUpload = false; this._formNode = null; this._sFormData = ""; }, createFrame: function(A) { var B = "yuiIO" + this._transaction_id; var C; if (window.ActiveXObject) { C = document.createElement('<iframe id="' + B + '" name="' + B + '" />'); if (typeof A == "boolean") { C.src = "javascript:false"; } } else { C = document.createElement("iframe"); C.id = B; C.name = B; } C.style.position = "absolute"; C.style.top = "-1000px"; C.style.left = "-1000px"; document.body.appendChild(C); YAHOO.log("File upload iframe created. Id is:" + B, "info", "Connection"); }, appendPostData: function(A) { var D = []; var B = A.split("&"); for (var C = 0; C < B.length; C++) { var E = B[C].indexOf("="); if (E != -1) { D[C] = document.createElement("input"); D[C].type = "hidden"; D[C].name = B[C].substring(0, E); D[C].value = B[C].substring(E + 1); this._formNode.appendChild(D[C]); } } return D; }, uploadFile: function(D, M, E, C) {
    var N = this; var H = "yuiIO" + D.tId; var I = "multipart/form-data"; var K = document.getElementById(H); var J = (M && M.argument) ? M.argument : null; var B = { action: this._formNode.getAttribute("action"), method: this._formNode.getAttribute("method"), target: this._formNode.getAttribute("target") }; this._formNode.setAttribute("action", E); this._formNode.setAttribute("method", "POST"); this._formNode.setAttribute("target", H); if (YAHOO.env.ua.ie) { this._formNode.setAttribute("encoding", I); } else { this._formNode.setAttribute("enctype", I); } if (C) { var L = this.appendPostData(C); } this._formNode.submit(); this.startEvent.fire(D, J); if (D.startEvent) { D.startEvent.fire(D, J); } if (M && M.timeout) { this._timeOut[D.tId] = window.setTimeout(function() { N.abort(D, M, true); }, M.timeout); } if (L && L.length > 0) { for (var G = 0; G < L.length; G++) { this._formNode.removeChild(L[G]); } } for (var A in B) { if (YAHOO.lang.hasOwnProperty(B, A)) { if (B[A]) { this._formNode.setAttribute(A, B[A]); } else { this._formNode.removeAttribute(A); } } } this.resetFormState(); var F = function() {
        if (M && M.timeout) {
            window.clearTimeout(N._timeOut[D.tId]);
            delete N._timeOut[D.tId];
        } N.completeEvent.fire(D, J); if (D.completeEvent) { D.completeEvent.fire(D, J); } var P = {}; P.tId = D.tId; P.argument = M.argument; try { P.responseText = K.contentWindow.document.body ? K.contentWindow.document.body.innerHTML : K.contentWindow.document.documentElement.textContent; P.responseXML = K.contentWindow.document.XMLDocument ? K.contentWindow.document.XMLDocument : K.contentWindow.document; } catch (O) { } if (M && M.upload) { if (!M.scope) { M.upload(P); YAHOO.log("Upload callback.", "info", "Connection"); } else { M.upload.apply(M.scope, [P]); YAHOO.log("Upload callback with scope.", "info", "Connection"); } } N.uploadEvent.fire(P); if (D.uploadEvent) { D.uploadEvent.fire(P); } YAHOO.util.Event.removeListener(K, "load", F); setTimeout(function() { document.body.removeChild(K); N.releaseObject(D); YAHOO.log("File upload iframe destroyed. Id is:" + H, "info", "Connection"); }, 100);
    }; YAHOO.util.Event.addListener(K, "load", F);
}, abort: function(E, G, A) { var D; var B = (G && G.argument) ? G.argument : null; if (E && E.conn) { if (this.isCallInProgress(E)) { E.conn.abort(); window.clearInterval(this._poll[E.tId]); delete this._poll[E.tId]; if (A) { window.clearTimeout(this._timeOut[E.tId]); delete this._timeOut[E.tId]; } D = true; } } else { if (E && E.isUpload === true) { var C = "yuiIO" + E.tId; var F = document.getElementById(C); if (F) { YAHOO.util.Event.removeListener(F, "load"); document.body.removeChild(F); YAHOO.log("File upload iframe destroyed. Id is:" + C, "info", "Connection"); if (A) { window.clearTimeout(this._timeOut[E.tId]); delete this._timeOut[E.tId]; } D = true; } } else { D = false; } } if (D === true) { this.abortEvent.fire(E, B); if (E.abortEvent) { E.abortEvent.fire(E, B); } this.handleTransactionResponse(E, G, true); YAHOO.log("Transaction " + E.tId + " aborted.", "info", "Connection"); } return D; }, isCallInProgress: function(B) { if (B && B.conn) { return B.conn.readyState !== 4 && B.conn.readyState !== 0; } else { if (B && B.isUpload === true) { var A = "yuiIO" + B.tId; return document.getElementById(A) ? true : false; } else { return false; } } }, releaseObject: function(A) { if (A && A.conn) { A.conn = null; YAHOO.log("Connection object for transaction " + A.tId + " destroyed.", "info", "Connection"); A = null; } } 
}; YAHOO.register("connection", YAHOO.util.Connect, { version: "2.5.2", build: "1076" });