var xmlHttpObject,id,type;
function sendToServerByAJAX(fileName,queryString,queryStringValue,contentId,contentType) {
	var url;
	xmlHttpObject=getXMLHttpObject();
	if(xmlHttpObject!=null) {
		url=fileName+'?'+queryString+'='+queryStringValue;
		type=contentType;
		id=contentId;
		xmlHttpObject.open('GET',url,true);
		xmlHttpObject.send(null);
		xmlHttpObject.onreadystatechange=stateChanged;
	}
}

function getXMLHttpObject() {
	if(window.ActiveXObject) {
		return new ActiveXObject('Microsoft.XMLHTTP');
	}
	else if(window.XMLHttpRequest) {
		return new XMLHttpRequest();
	}
	else {
		window.alert('your browser does not support AJAX');
		return null;
	}
}

function stateChanged() {
	if(xmlHttpObject.readyState==4 || xmlHttpObject.readyState=='complete') {
		if(type=='span' || type=='div' || type=='td') {
			document.getElementById(id).innerHTML=xmlHttpObject.responseText;
		}
		else if(type=='text' || type=='textarea') {
			document.getElementById(id).value=xmlHttpObject.responseText;
		}
	}
}