transparentPrevPage = prevPage; prevPage.addClassName(UI_DIALOG_BACKGROUND); prepareTransparentGoing(true/*add*/, getId()); String s = prevPage.getAttribute(DATA_DOM_CACHE); if ("true".equals(s)) {
prepareTransparentGoing(false/*add*/, getId()); if (transparentPrevPageClearCache) { transparentPrevPage.removeAttribute(DATA_DOM_CACHE);