function sendNewsRequest(letter) {
	if(SERVER.POSTrequest('/jirka_admin/includes/image.preview.php','preview='+letter,getNewsItem)){
	}
	else{
		alert("sendNewsRequest() has failed sending the request to the server");
	}
}

function getNewsItem(){
	var NewsRequest = SERVER.Ontvangst();
	if(NewsRequest){
		document.getElementById('imageHolder').innerHTML = NewsRequest;
	}
}