rem: return targetElement.style.display == "none"; 
add: return targetElement.style.display == "none" || (targetElement.style.display == "" && targetElement.className.indexOf("hidden") >= 0); 
context: function isElementHidden(namespace, elementId) {    var targetElement = getNamespacedElement(namespace, elementId);    return targetElement.style.display == "none";}
meta: 6797	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6797/0bdbbf6345a81dac840602995d10d5deaacc050f/bookmarks.js/clean/webapp/script/bookmarks.js