function ajax( type )
{
	//---------------------
	// Private Declarations
	//---------------------
	var _request = null;
	var _this = null;
	var _type = 'xml';
	if( type == 'text' )
	{
		_type = 'text';
	}

	//--------------------
	// Public Declarations
	//--------------------
	this.GetResponseXML = function()
	{
		return (_request) ? _request.responseXML : null;
	}

	this.GetResponseText = function()
	{
		return (_request) ? _request.responseText : null;
	}

	this.GetRequestObject = function()
	{
		return _request;
	}

	this.InitializeRequest = function( Uri, onSuccess, onFail, Method )
	{
		if( Method == null )
		{
			Method = 'POST';
		}
		_InitializeRequest();
		_this = this;

		_request.open(Method, Uri, true);

		this.OnSuccess = onSuccess;
		this.OnFail = onFail;

		this.SetRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	}

	this.SetRequestHeader = function( Field, Value )
	{
		if( _request )
		{
			_request.setRequestHeader(Field, Value);
		}
	}

	this.Commit = function( Data )
	{
		if( _request )
		{
			_request.send(Data);
		}
	}

	this.Close = function()
	{
		if( _request )
		{
			_request.abort();
		}
	}

	//---------------------------
	// Public Event Declarations.
	//---------------------------
	this.OnUninitialize = function() { };
	this.OnLoading = function() { };
	this.OnLoaded = function() { };
	this.OnInteractive = function() { };
	this.OnSuccess = function() { };
	this.OnFail = function() { };

	//---------------------------
	// Private Event Declarations
	//---------------------------
	function _OnUninitialize() { _this.OnUninitialize(); };
	function _OnLoading() { _this.OnLoading(); };
	function _OnLoaded() { _this.OnLoaded(); };
	function _OnInteractive() { _this.OnInteractive(); };

	//------------------
	// Private Functions
	//------------------
	function _InitializeRequest()
	{
		_request = _GetRequest();
		_request.onreadystatechange = _StateHandler;
	}

	function _StateHandler()
	{
		switch (_request.readyState)
		{
			case 0:
				window.setTimeout("void(0)", 100);
				_OnUninitialize();
			break;

			case 1:
				window.setTimeout("void(0)", 100);
				_OnLoading();
			break;

			case 2:
				window.setTimeout("void(0)", 100);
				_OnLoaded();
			break;

			case 3:
				window.setTimeout("void(0)", 100);
				_OnInteractive();
			break;

			case 4:
				var fail = false;
				var fail_message = '';
				if( _request.status == 200 )
				{
					if( _type == 'xml' )
					{
						var xmldoc = _request.responseXML;

						var success = xml_get_field(xmldoc, "success");
						if( success.toUpperCase() == "TRUE" )
						{
							_this.OnSuccess(xmldoc);
						}
						else
						{
							fail = true;
							fail_message = 'Success node failed';
						}
				}
				else
				{
					var doc = _request.responseText;
					_this.OnSuccess(doc);
				}
			}
			else
			{
				fail = true;
				fail_message = 'An unknown error occured';
			}

			if( fail==true )
			{
				_this.OnFail(xmldoc, fail_message);
			}
			return;
			break;
		}
	}

	function _GetRequest()
	{
		var obj;

		try
		{
			obj = new XMLHttpRequest();
		}
		catch( error )
		{
			try
			{
				obj = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch( error )
			{
				return null;
			}
		}

		return obj;
	}
}