+<script type="text/javascript" language="Javascript">
+<!--
+function toggleBooks(selector, value) {
+ cboxes = document.querySelectorAll(selector);
+ for (var i = 0; i < cboxes.length; i++) {
+ cboxes[i].checked = value;
+ }
+}
+
+function toggleAll(value) {
+ toggleBooks('input[type=checkbox]', value);
+}
+
+function toggleAuthor(name, value) {
+ toggleBooks('input[type=checkbox][name^=' + name + ']', value);
+}
+
+function toggleSeries(name, value) {
+ toggleBooks('input[type=checkbox][name^=' + name + '_book]', value);
+}
+// -->
+</script>
+