function FG_Ajax()
{var _request=null;var _this=null;this.Init=function(method,url)
{_Init();_this=this;switch(arguments.length)
{case 2:_request.open(method,url);break;case 3:_request.open(method,url,arguments[2]);break;}
if(arguments.length>=4)
{_request.open(method,url,arguments[2],arguments[3]);}
this.SetRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");}
this.SetRequestHeader=function(field,value)
{if(_request)
{_request.setRequestHeader(field,value)};}
this.Send=function(data)
{if(_request){_request.send(data)};}
this.GetResponseText=function()
{return(_request)?_request.responseText:null;}
this.OnSuccess=function(){};this.OnFailure=function(){};function _OnSuccess()
{_this.OnSuccess();}
function _OnFailure()
{_this.OnFailure();}
function _Init()
{_request=_GetXmlHttpRequestObject();if(_request)
{_request.onreadystatechange=_StateHandler;}}
function _StateHandler()
{if(4==_request.readyState)
{if(_request.status==200)
{_OnSuccess();}
else
{_OnFailure();}}}
function _GetXmlHttpRequestObject()
{if(window.XMLHttpRequest)
{return new XMLHttpRequest();}
else
if(window.ActiveXObject)
{return new ActiveXObject("Microsoft.XMLHTTP");}
else
{return null;}}}