var previewAvailable = 0;
function ProcessGBSBookInfo(booksInfo) {
	for (isbn in booksInfo) {
		var bookInfo = booksInfo[isbn];
		if (bookInfo) {
			if (bookInfo.preview == "full" || bookInfo.preview == "partial") {
				previewAvailable = 1;
			}
		}
	}
	if (previewAvailable == 1) {
		document.getElementById('googlePreviewLink').style.display = "";
		document.getElementById('googlePreviewWindow').style.display = "";
	} else {
		document.getElementById('googlePreviewLink').style.display = "none";
		document.getElementById('googlePreviewWindow').style.display = "none";
	}
}