function AJAXGetRequestFunc(url, synchronized, func) {
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req) {
req.onreadystatechange = function() {
AJAXProcessReqChangeFunc(req, func);
}
req.open("GET", url, synchronized);
req.setRequestHeader("If-Modified-Since", "Wed, 15 Nov 1995 04:58:08 GMT");
req.setRequestHeader("Cache-Control", "no-cache");
req.setRequestHeader("Pragma", "no-cache");
req.send(null);     
}
return;
}       
function AJAXPostRequestFunc(url, data, synchronized, func) {
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else {
req = new ActiveXObject("Microsoft.XMLHTTP");
}  
if (req) {
req.onreadystatechange = function() {
AJAXProcessReqChangeFunc(req, func);
}
req.open("POST", url, synchronized);
req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
req.setRequestHeader("If-Modified-Since", "Wed, 15 Nov 1995 04:58:08 GMT");
req.setRequestHeader("Cache-Control", "no-cache");
req.setRequestHeader("Pragma", "no-cache");
req.send(data);
}
return;
}       
function AJAXProcessReqChangeFunc(req, func) {
if (req.readyState == 4) {
if (req.status == 200) {
func(req);
}
}         
return;
}  
function AJAXGetRequest(url, synchronized) {
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else {  
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req) {
req.onreadystatechange = function() {
AJAXProcessReqChange(req);
}   
req.open("GET", url, synchronized);
req.setRequestHeader("If-Modified-Since", "Wed, 15 Nov 1995 04:58:08 GMT");
req.setRequestHeader("Cache-Control", "no-cache");
req.setRequestHeader("Pragma", "no-cache");
req.send(null);
}
return;
}       
function AJAXPostRequest(url, data, synchronized) {
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req) {
req.onreadystatechange = function() {
AJAXProcessReqChange(req);
} 
req.open("POST", url, synchronized);
req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
req.setRequestHeader("If-Modified-Since", "Wed, 15 Nov 1995 04:58:08 GMT");
req.setRequestHeader("Cache-Control", "no-cache");
req.setRequestHeader("Pragma", "no-cache");
req.send(data);
}
return;
}       
function AJAXProcessReqChange(req) {
if (req.readyState == 4) {
if (req.status == 200) {
AJAXProcessResponse(req);
}
}         
return;
}  
function AJAXProcessResponse(req) {
alert(req.responseText);  
return;
}  

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