function wddxSerializer_serializeValue(obj) {
	var bSuccess = true;
	var val;
	if (obj == null) {
		this.write("<null/>");
	} else if (typeof(val = obj.valueOf()) == "string") {
		this.serializeString(val);
	} else if (typeof(val = obj.valueOf()) == "number") {
		if ( typeof(obj.getTimezoneOffset) == "function" && typeof(obj.toGMTString) == "function") {
			this.write("<dateTime>" + (obj.getYear() < 1000 ? 1900+obj.getYear() : obj.getYear()) + "-" + (obj.getMonth() + 1) + "-" + obj.getDate() + "T" + obj.getHours() + ":" + obj.getMinutes() + ":" + obj.getSeconds());
			if (this.useTimezoneInfo) {
				this.write(this.timezoneString);
			}
			this.write("</dateTime>");
		} else {
			this.write("<number>" + val + "</number>");
		}
	} else if (typeof(val = obj.valueOf()) == "boolean") {
		this.write("<boolean value='" + val + "'/>");
	} else if (typeof(obj) == "object") {
		if (typeof(obj.wddxSerialize) == "function") {
			bSuccess = obj.wddxSerialize(this);
		} else if ( typeof(obj.join) == "function" && typeof(obj.reverse) == "function" && typeof(obj.sort) == "function" && typeof(obj.length) == "number") {
			this.write("<array length='" + obj.length + "'>");
			for (var i = 0; bSuccess && i < obj.length; ++i) {
				bSuccess = this.serializeValue(obj[i]);
			}
			this.write("</array>");
		} else {
			if (typeof(obj.wddxSerializationType) == 'string') {
				this.write('<struct type="'+ obj.wddxSerializationType +'">')
			} else {
				this.write("<struct>");
			}
			for (var prop in obj) {
				if (prop != 'wddxSerializationType') {
					bSuccess = this.serializeVariable(prop, obj[prop]);
					if (! bSuccess) {
						break;
					}
				}
			}
			this.write("</struct>");
		}
	} else {
		bSuccess = false;
	}
	return bSuccess;
}

function wddxSerializer_serializeAttr(s) {
	for (var i = 0; i < s.length; ++i) {
		this.write(this.at[s.charAt(i)]);
	}
}

function wddxSerializer_serializeAttrOld(s) {
	this.write(s);
}

function wddxSerializer_serializeString(s) {
	this.write("<string>");
	for (var i = 0; i < s.length; ++i) {
		this.write(this.et[s.charAt(i)]);
	}
	this.write("</string>");
}

function wddxSerializer_serializeStringOld(s) {
	this.write("<string><![CDATA[");
	pos = s.indexOf("]]>");
	if (pos != -1) {
		startPos = 0;
		while (pos != -1) {
			this.write(s.substring(startPos, pos) + "]]>]]&gt;<![CDATA[");
			startPos = pos + 3;
			if (startPos < s.length) {
				pos = s.indexOf("]]>", startPos);
			} else {
				pos = -1;
			}
		}
		this.write(s.substring(startPos, s.length));
	} else {
		this.write(s);
	}
	this.write("]]></string>");
}

function wddxSerializer_serializeVariable(name, obj) {
	var bSuccess = true;
	if (typeof(obj) != "function") {
		this.write("<var name='"); this.preserveVarCase ? this.serializeAttr(name) : this.serializeAttr(name.toLowerCase());
		this.write("'>");
		bSuccess = this.serializeValue(obj);
		this.write("</var>");
	}
	return bSuccess;
}

function wddxSerializer_write(str) {
	this.wddxPacket += str;
}

function wddxSerializer_serialize(rootObj) {
	this.wddxPacket = "";
	this.write("<wddxPacket version='1.0'><header/><data>");
	var bSuccess = this.serializeValue(rootObj);
	this.write("</data></wddxPacket>");
	if (bSuccess) {
		return this.wddxPacket;
	} else {
		return null;
	}
}

function WddxSerializer() {
	if (navigator.appVersion != "" && navigator.appVersion.indexOf("MSIE 3.") == -1) {
		var et = new Array();
		var n2c = new Array();
		var c2n = new Array();
		var at = new Array();
		for (var i = 0; i < 256; ++i) {
			var d1 = Math.floor(i/64);
			var d2 = Math.floor((i%64)/8);
			var d3 = i%8;
			var c = eval("\"\\" + d1.toString(10) + d2.toString(10) + d3.toString(10) + "\"");
			n2c[i] = c;
			c2n[c] = i;
			if (i < 32 && i != 9 && i != 10 && i != 13) {
				var hex = i.toString(16);
				if (hex.length == 1) {
					hex = "0" + hex;
				}
				et[n2c[i]] = "<char code='" + hex + "'/>";
				at[n2c[i]] = "";
			} else if (i < 128) {
				et[n2c[i]] = n2c[i];
				at[n2c[i]] = n2c[i];
			} else {
				et[n2c[i]] = "&#x" + i.toString(16) + ";";
				at[n2c[i]] = "&#x" + i.toString(16) + ";";
			}
		}
		et["<"] = "&lt;";
		et[">"] = "&gt;";
		et["&"] = "&amp;";
		at["<"] = "&lt;";
		at[">"] = "&gt;";
		at["&"] = "&amp;";
		at["'"] = "&apos;";
		at["\""] = "&quot;";
		this.n2c = n2c;
		this.c2n = c2n;
		this.et = et;
		this.at = at;
		this.serializeString = wddxSerializer_serializeString;
		this.serializeAttr = wddxSerializer_serializeAttr;
	} else {
		this.serializeString = wddxSerializer_serializeStringOld;
		this.serializeAttr = wddxSerializer_serializeAttrOld;
	}
	var tzOffset = (new Date()).getTimezoneOffset();
	if (tzOffset >= 0) {
		this.timezoneString = '-';
	} else {
		this.timezoneString = '+';
	}
	this.timezoneString += Math.floor(Math.abs(tzOffset) / 60) + ":" + (Math.abs(tzOffset) % 60);
	this.preserveVarCase = false;
	this.useTimezoneInfo = true;
	this.serialize = wddxSerializer_serialize;
	this.serializeValue = wddxSerializer_serializeValue;
	this.serializeVariable = wddxSerializer_serializeVariable;
	this.write = wddxSerializer_write;
}

function wddxRecordset_isColumn(name) {
	return (typeof(this[name]) == "object" && name.indexOf("_private_") == -1);
}

function wddxRecordset_getRowCount() {
	var nRowCount = 0;
	for (var col in this) {
		if (this.isColumn(col)) {
			nRowCount = this[col].length;
			break;
		}
	}
	return nRowCount;
}

function wddxRecordset_addColumn(name) {
	var nLen = this.getRowCount();
	var colValue = new Array(nLen);
	for (var i = 0; i < nLen; ++i) {
		colValue[i] = null;
	}
	this[this.preserveFieldCase ? name : name.toLowerCase()] = colValue;
}

function wddxRecordset_addRows(n) {
	for (var col in this) {
		if (this.isColumn(col)) {
			var nLen = this[col].length;
			for (var i = nLen; i < nLen + n; ++i) {
				this[col][i] = null;
			}
		}
	}
}

function wddxRecordset_getField(row, col) {
	return this[this.preserveFieldCase ? col : col.toLowerCase()][row];
}

function wddxRecordset_setField(row, col, value) {
	this[this.preserveFieldCase ? col : col.toLowerCase()][row] = value;
}

function wddxRecordset_wddxSerialize(serializer) {
	var colNamesList = "";
	var colNames = new Array();
	var i = 0;
	for (var col in this) {
		if (this.isColumn(col)) {
			colNames[i++] = col;
			if (colNamesList.length > 0) {
				colNamesList += ",";
			}
			colNamesList += col;
		}
	}
	var nRows = this.getRowCount();
	serializer.write("<recordset rowCount='" + nRows + "' fieldNames='" + colNamesList + "'>");
	var bSuccess = true;
	for (i = 0; bSuccess && i < colNames.length; i++) {
		var name = colNames[i];
		serializer.write("<field name='" + name + "'>");
		for (var row = 0; bSuccess && row < nRows; row++) {
			bSuccess = serializer.serializeValue(this[name][row]);
		}
		serializer.write("</field>");
	}
	serializer.write("</recordset>");
	return bSuccess;
}

function wddxRecordset_dump(escapeStrings) {
	var nRows = this.getRowCount();
	var colNames = new Array();
	var i = 0;
	for (var col in this) {
		if (typeof(this[col]) == "object") {
			colNames[i++] = col;
		}
	}
	var o = "<table border=1><tr><td><b>RowNumber</b></td>";
	for (i = 0; i < colNames.length; ++i) {
		o += "<td><b>" + colNames[i] + "</b></td>";
	}
	o += "</tr>";
	for (var row = 0; row < nRows; ++row) {
		o += "<tr><td>" + row + "</td>";
		for (i = 0; i < colNames.length; ++i) {
			var elem = this.getField(row, colNames[i]);
			if (escapeStrings && typeof(elem) == "string") {
				var str = "";
				for (var j = 0; j < elem.length; ++j) {
					var ch = elem.charAt(j);
					if (ch == '<') {
						str += "&lt;";
					} else if (ch == '>') {
						str += "&gt;";
					} else if (ch == '&') {
						str += "&amp;";
					} else {
						str += ch;
					}
				}
				o += ("<td>" + str + "</td>");
			} else {
				o += ("<td>" + elem + "</td>");
			}
		}
		o += "</tr>";
	}
	o += "</table>";
	return o;
}

function WddxRecordset() {
	this.preserveFieldCase = false;
	if (typeof(wddxRecordsetExtensions) == "object") {
		for (var prop in wddxRecordsetExtensions) {
			this[prop] = wddxRecordsetExtensions[prop]
		}
	}
	this.getRowCount = wddxRecordset_getRowCount;
	this.addColumn = wddxRecordset_addColumn;
	this.addRows = wddxRecordset_addRows;
	this.isColumn = wddxRecordset_isColumn;
	this.getField = wddxRecordset_getField;
	this.setField = wddxRecordset_setField;
	this.wddxSerialize = wddxRecordset_wddxSerialize;
	this.dump = wddxRecordset_dump;
	if (WddxRecordset.arguments.length > 0) {
		if (typeof(val = WddxRecordset.arguments[0].valueOf()) == "boolean") {
			this.preserveFieldCase = WddxRecordset.arguments[0];
		} else {
			var cols = WddxRecordset.arguments[0];
			var nLen = 0;
			if (WddxRecordset.arguments.length > 1) {
				if (typeof(val = WddxRecordset.arguments[1].valueOf()) == "boolean") {
					this.preserveFieldCase = WddxRecordset.arguments[1];
				} else {
					nLen = WddxRecordset.arguments[1];
					if (WddxRecordset.arguments.length > 2) {
						this.preserveFieldCase = WddxRecordset.arguments[2];
					}
				}
			}
			for (var i = 0; i < cols.length; ++i) {
				var colValue = new Array(nLen);
				for (var j = 0; j < nLen; ++j) {
					colValue[j] = null;
				}
				this[this.preserveFieldCase ? cols[i] : cols[i].toLowerCase()] = colValue;
			}
		}
	}
}

function registerWddxRecordsetExtension(name, func) {
	if (typeof(name) == "string" && typeof(func) == "function") {
		if (typeof(wddxRecordsetExtensions) != "object") {
			wddxRecordsetExtensions = new Object();
		}
		wddxRecordsetExtensions[name] = func;
	}
}

function wddxBinary_wddxSerialize(serializer) {
	serializer.write( "<binary encoding='" + this.encoding + "'>" + this.data + "</binary>");
	return true;
}

function WddxBinary(data, encoding) {
	this.data = data != null ? data : "";
	this.encoding = encoding != null ? encoding : "base64";
	this.wddxSerialize = wddxBinary_wddxSerialize;
}