function ttAjax(){this.xmlHttp=null;this.createXmlHttpRequestObject=function(){var ids=['MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP','Microsoft.XMLHTTP'];var xhr;if(typeof window.XMLHttpRequest==='function'){xhr=new XMLHttpRequest();}else{for(var i=0;i<ids.length;i++){try{xhr=new ActiveXObject(ids[i]);break;}catch(e){}}}
this.xmlHttp=xhr;return xhr;}
this.sendRequest=function(address,handler,showProgress){this.createXmlHttpRequestObject();address=encodeURI(address);if(this.xmlHttp!=null){this.xmlHttp.open("GET",address,true);this.xmlHttp.onreadystatechange=(function(myxhr){return function(){if(myxhr.readyState==4){if(myxhr.status==200)handler(myxhr);else alert("There was a problem accessing the server: "+myxhr.statusText);}}})(this.xmlHttp);this.xmlHttp.send(null);if(showProgress)setStatus(true);}
else
{window.alert('Your web browser does not support AJAX.');return false;}}
return this;}