var READY_STATE_UNINITIALIZED=0;
var READY_STATE_LOADING=1;
var READY_STATE_LOADED=2;
var READY_STATE_INTERACTIVE=3;
var READY_STATE_COMPLETE=4;
var req;
function sendRequest(url,params,HttpMethod){
if (!HttpMethod){
HttpMethod="GET";
}
req=getXMLHTTPRequest();
if(req){
req.onreadystatechange=onReadyStateChange;
req.open(HttpMethod,url,true);
req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
req.send(params);
}
}
function onReadyStateChange(){
var ready=req.readyState;
var data=null;
if (ready==READY_STATE_COMPLETE){
data=req.responseText;
}else{
data="loading...["+ready+"]";
}
//... do something with the data...
}
