rem: return parseFloat(Element.getStyle(element, "opacity") || '1'); 
add: var opacity; if (opacity = Element.getStyle(element, "opacity")) return parseFloat(opacity); if (opacity = (Element.getStyle(element, "filter") || '').match(/alpha\(opacity=(.*)\)/)) if(opacity[1]) return parseFloat(opacity[1]) / 100; return 1.0; 
context: Element.getOpacity = function(element){  return parseFloat(Element.getStyle(element, "opacity") || '1');}
meta: 2385	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2385/7d101d58400acaff232091485c8e140f0a37cbaf/util.js/buggy/railties/html/javascripts/util.js