+++ /dev/null
-var focusedElement = null;
-
-var modal = document.getElementById('modal');
-var dialog = document.getElementById('dialog');
-var body = document.getElementById('global');
-var html = document.documentElement;
-
-var modalShowing = (html.className === 'modal');
-
-
-// Have to hack for Safari, due to poor support for the focus() function.
-try {
- var isSafari = window.navigator.vendor.match(/Apple/);
-} catch (ex) {
- isSafari = false;
-}
-if ( isSafari ) {
- var dialogFocuser = document.createElement('a');
- dialogFocuser.href="#";
- dialogFocuser.style.display='block';
- dialogFocuser.style.height='0';
- dialogFocuser.style.width='0';
- dialogFocuser.style.position = 'absolute';
- dialog.insertBefore(dialogFocuser, dialog.firstChild);
-} else {
- dialogFocuser = dialog;
-}
-
-window.onunload = function () {
- dialogFocuser = focusedElement = modal = dialog = body = html = null;
-};
-
-var onfocus = function (e) {
- e = e || window.event;
- var el = e.target || e.srcElement;
-
- // save the last focused element when the modal is hidden.
- if ( !modalShowing ) {
- focusedElement = el;
- return;
- }
-
- // if we're focusing the dialog, then just clear the blurring flag.
- // else, focus the dialog and prevent the other event.
- var p = el.parentNode;
- while ( p && p.parentNode && p !== dialog ) {
- p=p.parentNode;
- }
- if ( p !== dialog ) {
- dialogFocuser.focus();
- }
-};
-
-
-
-var onblur = function () {
- if ( !modalShowing ) {
- focusedElement = body;
- }
-};
-
-html.onfocus = html.onfocusin = onfocus;
-html.onblur = html.onfocusout = onblur;
-if ( isSafari ) {
- html.addEventListener('DOMFocusIn',onfocus);
- html.addEventListener('DOMFocusOut',onblur);
-}
-// focus and blur events are tricky to bubble.
-// need to do some special stuff to handle MSIE.
-
-
-function toggleModal (b) {
-
- if (modalShowing && b) return;
- if (!modalShowing && !b) return;
-
- html.className=modalShowing?'':'modal';
-
- modalShowing = !modalShowing;
-
- if (modalShowing) {
- dialog.focus();
- } else if (focusedElement) {
- try {
- focusedElement.focus();
- } catch(ex) {}
- }
-
-};