function addToNotebook(handle) {
	openNotebookPopup("/servlet/itemNotebook?action=add&handle=" + encodeURIComponent(handle));
}

function removeFromNotebook(handle) {
	openNotebookPopup("/servlet/itemNotebook?action=remove&handle=" + encodeURIComponent(handle));
}

function openNotebookPopup(url) {
	window.open(url, "notebook", "width=600,height=350,menubar=no,scrollbars=no,toolbar=no,status=no,resizable=no");
}