var xmlhttp = false;

//check if using IE

try {
	//check jika IE lebih besar dari IE 5
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
	//jika tidak menggunakan activeX
	try {
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
		xmlhttp = false;
	}
}

//check if not using IE
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
	xmlhttp = new XMLHttpRequest();
}

//function request
function makeRequest ( serverPage, objID, msgLoad ) {
	var obj = document.getElementById(objID);
	var msg = msgLoad;
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if ( xmlhttp.readyState == 4 && xmlhttp.status == 200 ) {
			obj.innerHTML = xmlhttp.responseText;
		} else {
			obj.innerHTML = "<br /><br /><div align ='center'><img src='images/ajax.gif' alt='Loading' /><br />"+msg + "</div>";
		}
	}
	xmlhttp.send(null);
}

//function request
function download ( serverPage, objID, msgLoad ) {
	var obj = document.getElementById(objID);
	var msg = msgLoad;
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if ( xmlhttp.readyState == 4 && xmlhttp.status == 200 ) {
			window.location = serverPage;
		} else {
			obj.innerHTML = "<br /><br /><div align ='center'><img src='../images/ajax.gif' alt='Loading' /><br />"+msg + "</div>";
		}
	}
	xmlhttp.send(null);
}

//function for search
function searchRequest ( serverPage, objID, msgLoad, formName , getcari ) {
	var obj = document.getElementById(objID);
	var msg = msgLoad;
	var cari = document.forms[formName].elements[getcari].value;
	var t = new Date()
	
	xmlhttp.open("GET", serverPage+"?search="+cari+"&t="+t.getTime());
	xmlhttp.onreadystatechange = function() {
		if ( xmlhttp.readyState == 4 && xmlhttp.status == 200 ) {
			obj.innerHTML = xmlhttp.responseText;
		} else {
			obj.innerHTML = "<br /><br /><div align ='center'><img src='../images/ajax.gif' alt='Loading' /><br />"+msg + "</div>";
		}
	}
	xmlhttp.send(null);
}