rem: this._oDom.getStyle(oParent.element, "visibility") == "visible" 
add: Dom.getStyle(oParent.element, "visibility") == "visible" 
context:     blur: function() {        var oParent = this.parent;        if(            !this.cfg.getProperty("disabled") &&            oParent &&            this._oDom.getStyle(oParent.element, "visibility") == "visible"        ) {            this._oAnchor.blur();            this.blurEvent.fire();        }    },
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/menu-debug.js/buggy/www/resources/yui/menu/menu-debug.js