/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.4.1
*/
YAHOO.util.DataSource = function(B, D) {
	if (D && (D.constructor == Object)) {
		for (var C in D) {
			if (C) {
				this[C] = D[C];
			}
		}
	}
	if (!B) {
		return;
	}
	if (B.nodeType && B.nodeType == 9) {
		this.dataType = YAHOO.util.DataSource.TYPE_XML;
	} else {
		if (YAHOO.lang.isArray(B)) {
			this.dataType = YAHOO.util.DataSource.TYPE_JSARRAY;
		} else {
			if (YAHOO.lang.isString(B)) {
				this.dataType = YAHOO.util.DataSource.TYPE_XHR;
			} else {
				if (YAHOO.lang.isFunction(B)) {
					this.dataType = YAHOO.util.DataSource.TYPE_JSFUNCTION;
				} else {
					if (B.nodeName && (B.nodeName.toLowerCase() == "table")) {
						this.dataType = YAHOO.util.DataSource.TYPE_HTMLTABLE;
					} else {
						if (YAHOO.lang.isObject(B)) {
							this.dataType = YAHOO.util.DataSource.TYPE_JSON;
						} else {
							this.dataType = YAHOO.util.DataSource.TYPE_UNKNOWN;
						}
					}
				}
			}
		}
	}
	this.liveData = B;
	this._oQueue = {
		interval: null,
		conn: null,
		requests: []
	};
	var A = this.maxCacheEntries;
	if (!YAHOO.lang.isNumber(A) || (A < 0)) {
		A = 0;
	}
	if (A > 0 && !this._aCache) {
		this._aCache = [];
	}
	this._aIntervals = [];
	this._sName = "DataSource instance" + YAHOO.util.DataSource._nIndex;
	YAHOO.util.DataSource._nIndex++;
	this.createEvent("cacheRequestEvent");
	this.createEvent("cacheResponseEvent");
	this.createEvent("requestEvent");
	this.createEvent("responseEvent");
	this.createEvent("responseParseEvent");
	this.createEvent("responseCacheEvent");
	this.createEvent("dataErrorEvent");
	this.createEvent("cacheFlushEvent");
};
YAHOO.augment(YAHOO.util.DataSource, YAHOO.util.EventProvider);
YAHOO.util.DataSource.TYPE_UNKNOWN = -1;
YAHOO.util.DataSource.TYPE_JSARRAY = 0;
YAHOO.util.DataSource.TYPE_JSFUNCTION = 1;
YAHOO.util.DataSource.TYPE_XHR = 2;
YAHOO.util.DataSource.TYPE_JSON = 3;
YAHOO.util.DataSource.TYPE_XML = 4;
YAHOO.util.DataSource.TYPE_TEXT = 5;
YAHOO.util.DataSource.TYPE_HTMLTABLE = 6;
YAHOO.util.DataSource.ERROR_DATAINVALID = "Invalid data";
YAHOO.util.DataSource.ERROR_DATANULL = "Null data";
YAHOO.util.DataSource._nIndex = 0;
YAHOO.util.DataSource._nTransactionId = 0;
YAHOO.util.DataSource.prototype._sName = null;
YAHOO.util.DataSource.prototype._aCache = null;
YAHOO.util.DataSource.prototype._oQueue = null;
YAHOO.util.DataSource.prototype._aIntervals = null;
YAHOO.util.DataSource.prototype.maxCacheEntries = 0;
YAHOO.util.DataSource.prototype.liveData = null;
YAHOO.util.DataSource.prototype.dataType = YAHOO.util.DataSource.TYPE_UNKNOWN;
YAHOO.util.DataSource.prototype.responseType = YAHOO.util.DataSource.TYPE_UNKNOWN;
YAHOO.util.DataSource.prototype.responseSchema = null;
YAHOO.util.DataSource.prototype.connMgr = null;
YAHOO.util.DataSource.prototype.connXhrMode = "allowAll";
YAHOO.util.DataSource.prototype.connMethodPost = false;
YAHOO.util.DataSource.prototype.connTimeout = 0;
YAHOO.util.DataSource.parseString = function(B) {
	if (!YAHOO.lang.isValue(B)) {
		return null;
	}
	var A = B + "";
	if (YAHOO.lang.isString(A)) {
		return A;
	} else {
		return null;
	}
};
YAHOO.util.DataSource.parseNumber = function(B) {
	var A = B * 1;
	if (YAHOO.lang.isNumber(A)) {
		return A;
	} else {
		return null;
	}
};
YAHOO.util.DataSource.convertNumber = function(A) {
	return YAHOO.util.DataSource.parseNumber(A);
};
YAHOO.util.DataSource.parseDate = function(B) {
	var A = null;
	if (! (B instanceof Date)) {
		A = new Date(B);
	} else {
		return B;
	}
	if (A instanceof Date) {
		return A;
	} else {
		return null;
	}
};
YAHOO.util.DataSource.convertDate = function(A) {
	return YAHOO.util.DataSource.parseDate(A);
};
YAHOO.util.DataSource.prototype.toString = function() {
	return this._sName;
};
YAHOO.util.DataSource.prototype.getCachedResponse = function(H, B, G) {
	var A = this._aCache;
	var D = (A) ? A.length: 0;
	var F = null;
	if ((this.maxCacheEntries > 0) && A && (D > 0)) {
		this.fireEvent("cacheRequestEvent", {
			request: H,
			callback: B,
			caller: G
		});
		for (var E = D - 1; E >= 0; E--) {
			var C = A[E];
			if (this.isCacheHit(H, C.request)) {
				F = C.response;
				A.splice(E, 1);
				this.addToCache(H, F);
				this.fireEvent("cacheResponseEvent", {
					request: H,
					response: F,
					callback: B,
					caller: G
				});
				break;
			}
		}
	}
	return F;
};
YAHOO.util.DataSource.prototype.isCacheHit = function(A, B) {
	return (A === B);
};
YAHOO.util.DataSource.prototype.addToCache = function(D, C) {
	var A = this._aCache;
	if (!A) {
		return;
	}
	while (A.length >= this.maxCacheEntries) {
		A.shift();
	}
	var B = {
		request: D,
		response: C
	};
	A.push(B);
	this.fireEvent("responseCacheEvent", {
		request: D,
		response: C
	});
};
YAHOO.util.DataSource.prototype.flushCache = function() {
	if (this._aCache) {
		this._aCache = [];
		this.fireEvent("cacheFlushEvent");
	}
};
YAHOO.util.DataSource.prototype.setInterval = function(D, F, B, E) {
	try {
		var C = this;
		var A = setInterval(function() {
			C.makeConnection(F, B, E);
		},
		D);
		this._aIntervals.push(A);
		return A;
	} catch(G) {}
};
YAHOO.util.DataSource.prototype.clearInterval = function(A) {
	var C = this._aIntervals || [];
	for (var B = C.length - 1; B > -1; B--) {
		if (C[B] === A) {
			C.splice(B, 1);
			clearInterval(A);
		}
	}
};
YAHOO.util.DataSource.prototype.clearAllIntervals = function(A) {
	var C = this._aIntervals || [];
	for (var B = C.length - 1; B > -1; B--) {
		C.splice(B, 1);
		clearInterval(A);
	}
};
YAHOO.util.DataSource.prototype.sendRequest = function(D, A, C) {
	var B = this.getCachedResponse(D, A, C);
	if (B) {
		A.call(C, D, B);
		return null;
	}
	return this.makeConnection(D, A, C);
};
YAHOO.util.DataSource.prototype.makeConnection = function(A, P, K) {
	this.fireEvent("requestEvent", {
		request: A,
		callback: P,
		caller: K
	});
	var D = null;
	var L = YAHOO.util.DataSource._nTransactionId++;
	switch (this.dataType) {
	case YAHOO.util.DataSource.TYPE_JSFUNCTION:
		D = this.liveData(A);
		this.handleResponse(A, D, P, K, L);
		break;
	case YAHOO.util.DataSource.TYPE_XHR:
		var N = this;
		var C = this.connMgr || YAHOO.util.Connect;
		var G = this._oQueue;
		var J = function(Q) {
			if (Q && (this.connXhrMode == "ignoreStaleResponses") && (Q.tId != G.conn.tId)) {
				return null;
			} else {
				if (!Q) {
					this.fireEvent("dataErrorEvent", {
						request: A,
						callback: P,
						caller: K,
						message: YAHOO.util.DataSource.ERROR_DATANULL
					});
					P.call(K, A, Q, true);
					return null;
				} else {
					this.handleResponse(A, Q, P, K, L);
				}
			}
		};
		var O = function(Q) {
			this.fireEvent("dataErrorEvent", {
				request: A,
				callback: P,
				caller: K,
				message: YAHOO.util.DataSource.ERROR_DATAINVALID
			});
			if ((this.liveData.lastIndexOf("?") !== this.liveData.length - 1) && (A.indexOf("?") !== 0)) {}
			P.call(K, A, Q, true);
			return null;
		};
		var I = {
			success: J,
			failure: O,
			scope: this
		};
		if (YAHOO.lang.isNumber(this.connTimeout)) {
			I.timeout = this.connTimeout;
		}
		if (this.connXhrMode == "cancelStaleRequests") {
			if (G.conn) {
				if (C.abort) {
					C.abort(G.conn);
					G.conn = null;
				} else {}
			}
		}
		if (C && C.asyncRequest) {
			var B = this.liveData;
			var H = this.connMethodPost;
			var M = (H) ? "POST": "GET";
			var E = (H) ? B: B + A;
			var F = (H) ? A: null;
			if (this.connXhrMode != "queueRequests") {
				G.conn = C.asyncRequest(M, E, I, F);
			} else {
				if (G.conn) {
					G.requests.push({
						request: A,
						callback: I
					});
					if (!G.interval) {
						G.interval = setInterval(function() {
							if (C.isCallInProgress(G.conn)) {
								return;
							} else {
								if (G.requests.length > 0) {
									E = (H) ? B: B + G.requests[0].request;
									F = (H) ? G.requests[0].request: null;
									G.conn = C.asyncRequest(M, E, G.requests[0].callback, F);
									G.requests.shift();
								} else {
									clearInterval(G.interval);
									G.interval = null;
								}
							}
						},
						50);
					}
				} else {
					G.conn = C.asyncRequest(M, E, I, F);
				}
			}
		} else {
			P.call(K, A, null, true);
		}
		break;
	default:
		D = this.liveData;
		this.handleResponse(A, D, P, K, L);
		break;
	}
	return L;
};
YAHOO.util.DataSource.prototype.handleResponse = function(E, C, B, D, H) {
	this.fireEvent("responseEvent", {
		request: E,
		response: C,
		callback: B,
		caller: D,
		tId: H
	});
	var G = (this.dataType == YAHOO.util.DataSource.TYPE_XHR) ? true: false;
	var F = null;
	var A = false;
	C = this.doBeforeParseData(E, C);
	switch (this.responseType) {
	case YAHOO.util.DataSource.TYPE_JSARRAY:
		if (G && C.responseText) {
			C = C.responseText;
		}
		F = this.parseArrayData(E, C);
		break;
	case YAHOO.util.DataSource.TYPE_JSON:
		if (G && C.responseText) {
			C = C.responseText;
		}
		F = this.parseJSONData(E, C);
		break;
	case YAHOO.util.DataSource.TYPE_HTMLTABLE:
		if (G && C.responseText) {
			C = C.responseText;
		}
		F = this.parseHTMLTableData(E, C);
		break;
	case YAHOO.util.DataSource.TYPE_XML:
		if (G && C.responseXML) {
			C = C.responseXML;
		}
		F = this.parseXMLData(E, C);
		break;
	case YAHOO.util.DataSource.TYPE_TEXT:
		if (G && C.responseText) {
			C = C.responseText;
		}
		F = this.parseTextData(E, C);
		break;
	default:
		break;
	}
	if (F) {
		F.tId = H;
		F = this.doBeforeCallback(E, C, F);
		this.fireEvent("responseParseEvent", {
			request: E,
			response: F,
			callback: B,
			caller: D
		});
		this.addToCache(E, F);
	} else {
		this.fireEvent("dataErrorEvent", {
			request: E,
			callback: B,
			caller: D,
			message: YAHOO.util.DataSource.ERROR_DATANULL
		});
		F = {
			error: true
		};
	}
	B.call(D, E, F);
};
YAHOO.util.DataSource.prototype.doBeforeParseData = function(B, A) {
	return A;
};
YAHOO.util.DataSource.prototype.doBeforeCallback = function(B, A, C) {
	return C;
};
YAHOO.util.DataSource.prototype.parseArrayData = function(A, B) {
	if (YAHOO.lang.isArray(B) && YAHOO.lang.isArray(this.responseSchema.fields)) {
		var J = {
			results: []
		};
		var G = this.responseSchema.fields;
		for (var E = B.length - 1; E > -1; E--) {
			var F = {};
			for (var C = G.length - 1; C > -1; C--) {
				var H = G[C];
				var I = (YAHOO.lang.isValue(H.key)) ? H.key: H;
				var D = (YAHOO.lang.isValue(B[E][C])) ? B[E][C] : B[E][I];
				if (!H.parser && H.converter) {
					H.parser = H.converter;
				}
				if (H.parser) {
					D = H.parser.call(this, D);
				}
				if (D === undefined) {
					D = null;
				}
				F[I] = D;
			}
			J.results.unshift(F);
		}
		return J;
	} else {
		return null;
	}
};
YAHOO.util.DataSource.prototype.parseTextData = function(A, B) {
	var P = {};
	if (YAHOO.lang.isString(B) && YAHOO.lang.isArray(this.responseSchema.fields) && YAHOO.lang.isString(this.responseSchema.recordDelim) && YAHOO.lang.isString(this.responseSchema.fieldDelim)) {
		P.results = [];
		var M = this.responseSchema.recordDelim;
		var G = this.responseSchema.fieldDelim;
		var J = this.responseSchema.fields;
		if (B.length > 0) {
			var C = B.length - M.length;
			if (B.substr(C) == M) {
				B = B.substr(0, C);
			}
			var Q = B.split(M);
			for (var F = Q.length - 1; F > -1; F--) {
				var I = {};
				var K = false;
				for (var D = J.length - 1; D > -1; D--) {
					try {
						var H = Q[F].split(G);
						var E = H[D];
						if (E.charAt(0) == "\"") {
							E = E.substr(1);
						}
						if (E.charAt(E.length - 1) == "\"") {
							E = E.substr(0, E.length - 1);
						}
						var N = J[D];
						var O = (YAHOO.lang.isValue(N.key)) ? N.key: N;
						if (!N.parser && N.converter) {
							N.parser = N.converter;
						}
						if (N.parser) {
							E = N.parser.call(this, E);
						}
						if (E === undefined) {
							E = null;
						}
						I[O] = E;
					} catch(L) {
						K = true;
					}
				}
				if (!K) {
					P.results.unshift(I);
				}
			}
		}
	} else {
		P.error = true;
	}
	return P;
};
YAHOO.util.DataSource.prototype.parseXMLData = function(A, C) {
	var I = false;
	var N = {};
	var D = null;
	try {
		D = (this.responseSchema.resultNode) ? C.getElementsByTagName(this.responseSchema.resultNode) : null;
	} catch(J) {}
	if (!D || !YAHOO.lang.isArray(this.responseSchema.fields)) {
		I = true;
	} else {
		N.results = [];
		for (var F = D.length - 1; F >= 0; F--) {
			var O = D.item(F);
			var H = {};
			for (var E = this.responseSchema.fields.length - 1; E >= 0; E--) {
				var K = this.responseSchema.fields[E];
				var M = (YAHOO.lang.isValue(K.key)) ? K.key: K;
				var G = null;
				var B = O.attributes.getNamedItem(M);
				if (B) {
					G = B.value;
				} else {
					var L = O.getElementsByTagName(M);
					if (L && L.item(0) && L.item(0).firstChild) {
						G = L.item(0).firstChild.nodeValue;
					} else {
						G = "";
					}
				}
				if (!K.parser && K.converter) {
					K.parser = K.converter;
				}
				if (K.parser) {
					G = K.parser.call(this, G);
				}
				if (G === undefined) {
					G = null;
				}
				H[M] = G;
			}
			N.results.unshift(H);
		}
	}
	if (I) {
		N.error = true;
	} else {}
	return N;
};
YAHOO.util.DataSource.prototype.parseJSONData = function(oRequest, oRawResponse) {
	var oParsedResponse = {};
	if (oRawResponse && YAHOO.lang.isArray(this.responseSchema.fields)) {
		var fields = this.responseSchema.fields;
		var bError = false;
		oParsedResponse.results = [];
		var jsonObj, jsonList;
		if (YAHOO.lang.isString(oRawResponse)) {
			var isNotMac = (navigator.userAgent.toLowerCase().indexOf("khtml") == -1);
			if (oRawResponse.parseJSON && isNotMac) {
				jsonObj = oRawResponse.parseJSON();
				if (!jsonObj) {
					bError = true;
				}
			} else {
				if (YAHOO.lang.JSON && isNotMac) {
					jsonObj = YAHOO.lang.JSON.parse(oRawResponse);
					if (!jsonObj) {
						bError = true;
					}
				} else {
					if (window.JSON && JSON.parse && isNotMac) {
						jsonObj = JSON.parse(oRawResponse);
						if (!jsonObj) {
							bError = true;
						}
					} else {
						try {
							while (oRawResponse.length > 0 && (oRawResponse.charAt(0) != "{") && (oRawResponse.charAt(0) != "[")) {
								oRawResponse = oRawResponse.substring(1, oRawResponse.length);
							}
							if (oRawResponse.length > 0) {
								var objEnd = Math.max(oRawResponse.lastIndexOf("]"), oRawResponse.lastIndexOf("}"));
								oRawResponse = oRawResponse.substring(0, objEnd + 1);
								jsonObj = eval("(" + oRawResponse + ")");
								if (!jsonObj) {
									bError = true;
								}
							} else {
								jsonObj = null;
								bError = true;
							}
						} catch(e) {
							bError = true;
						}
					}
				}
			}
		} else {
			if (oRawResponse.constructor == Object) {
				jsonObj = oRawResponse;
			} else {
				bError = true;
			}
		}
		if (jsonObj && jsonObj.constructor == Object) {
			try {
				jsonList = eval("jsonObj." + this.responseSchema.resultsList);
			} catch(e) {
				bError = true;
			}
		}
		if (bError || !jsonList) {
			oParsedResponse.error = true;
		}
		if (jsonList && !YAHOO.lang.isArray(jsonList)) {
			jsonList = [jsonList];
		} else {
			if (!jsonList) {
				jsonList = [];
			}
		}
		for (var i = jsonList.length - 1; i >= 0; i--) {
			var oResult = {};
			var jsonResult = jsonList[i];
			for (var j = fields.length - 1; j >= 0; j--) {
				var field = fields[j];
				var key = (YAHOO.lang.isValue(field.key)) ? field.key: field;
				var data = eval("jsonResult." + key);
				if (!field.parser && field.converter) {
					field.parser = field.converter;
				}
				if (field.parser) {
					data = field.parser.call(this, data);
				}
				if (data === undefined) {
					data = null;
				}
				oResult[key] = data;
			}
			oParsedResponse.results.unshift(oResult);
		}
	} else {
		oParsedResponse.error = true;
	}
	return oParsedResponse;
};
YAHOO.util.DataSource.prototype.parseHTMLTableData = function(B, C) {
	var K = false;
	var L = C;
	var J = this.responseSchema.fields;
	var O = {};
	O.results = [];
	for (var H = 0; H < L.tBodies.length; H++) {
		var D = L.tBodies[H];
		for (var F = D.rows.length - 1; F > -1; F--) {
			var A = D.rows[F];
			var I = {};
			for (var E = J.length - 1; E > -1; E--) {
				var M = J[E];
				var N = (YAHOO.lang.isValue(M.key)) ? M.key: M;
				var G = A.cells[E].innerHTML;
				if (!M.parser && M.converter) {
					M.parser = M.converter;
				}
				if (M.parser) {
					G = M.parser.call(this, G);
				}
				if (G === undefined) {
					G = null;
				}
				I[N] = G;
			}
			O.results.unshift(I);
		}
	}
	if (K) {
		O.error = true;
	} else {}
	return O;
};
YAHOO.util.Number = {
	format: function(B, E) {
		E = E || {};
		if (!YAHOO.lang.isNumber(B)) {
			B *= 1;
		}
		if (YAHOO.lang.isNumber(B)) {
			var I = B + "";
			var F = (E.decimalSeparator) ? E.decimalSeparator: ".";
			var G;
			if (YAHOO.lang.isNumber(E.decimalPlaces)) {
				var H = E.decimalPlaces;
				var C = Math.pow(10, H);
				I = Math.round(B * C) / C + "";
				G = I.lastIndexOf(".");
				if (H > 0) {
					if (G < 0) {
						I += F;
						G = I.length - 1;
					} else {
						if (F !== ".") {
							I = I.replace(".", F);
						}
					}
					while ((I.length - 1 - G) < H) {
						I += "0";
					}
				}
			}
			if (E.thousandsSeparator) {
				var K = E.thousandsSeparator;
				G = I.lastIndexOf(F);
				G = (G > -1) ? G: I.length;
				var J = I.substring(G);
				var A = -1;
				for (var D = G; D > 0; D--) {
					A++;
					if ((A % 3 === 0) && (D !== G)) {
						J = K + J;
					}
					J = I.charAt(D - 1) + J;
				}
				I = J;
			}
			I = (E.prefix) ? E.prefix + I: I;
			I = (E.suffix) ? I + E.suffix: I;
			return I;
		} else {
			return B;
		}
	}
};
YAHOO.util.Date = {
	format: function(C, B) {
		B = B || {};
		if (C instanceof Date) {
			var D = B.format || "MM/DD/YYYY";
			var E = C.getMonth() + 1;
			var A = C.getDate();
			var F = C.getFullYear();
			switch (D) {
			case "YYYY/MM/DD":
				return F + "/" + E + "/" + A;
			case "DD/MM/YYYY":
				return A + "/" + E + "/" + F;
			default:
				return E + "/" + A + "/" + F;
			}
		} else {
			return YAHOO.lang.isValue(C) ? C: "";
		}
	}
};
YAHOO.register("datasource", YAHOO.util.DataSource, {
	version: "2.4.1",
	build: "742"
});