var http_request = false;   // ket qua ajax
var out_id = 'contentlayer';     // Bien ID chinh cua cac function ajax

function MakeRequest(url, functionName, httpType, sendData) {

	http_request = false;
	if (!httpType) httpType = "GET";

	if (window.XMLHttpRequest) { // Non-IE...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/plain');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (!http_request) {
		alert('Khong the gui truy van !');
		return false;
	}

	var changefunc="http_request.onreadystatechange = "+functionName;
	eval (changefunc);
	http_request.open(httpType, url, true);
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send(sendData);
}



function GetedRequest(inurl, outid, add) {
    var url = PAGE_DOMAIN + "/export.php?" + inurl;
    if (outid) {
		out_id = outid;
	}
	if (add) {
		addcont=1;
	}
        AddBackContent(outid);
     document.getElementById(out_id).innerHTML= '<img src="images/loading.gif">'; 
    MakeRequest(url, 'PrintResult', 'GET', null);
    return false;
}


function PrintResult() {
    var data;
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			 if(addcont==1) {
			    addcont=0;
				data = http_request.responseText + old_cont[occount-1];
			} else {
			    data = http_request.responseText;
			}
			document.getElementById(out_id).innerHTML = data;
		} else {
			alert('Co loi trong qua trinh truyen. ' + page_domain);
		}
	}
}