rem: item.disabled = !enabled; 
add: item.style.color = enabled ? "" : tw_COLOR_GRAYTEXT; 
context:     itemSetEnabled: function(itemPos, enabled) {        var item = this._fullIndexItem(itemPos);        item.disabled = !enabled;    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/37796fea05d0eb86951d2f34aedeb66e8b500920/Menu.js/buggy/src/thinwire/render/web/resources/Menu.js