rem: this.mPanel.panelset.setCommandAttribute("cmd:toggleSubDocs", "checked", val ? "true" : "false"); 
add: this.mPanel.panelset.setCommandAttribute("cmd:toggleSubDocs", "checked", val != null); 
context:   toggleSubDocs: function(aExplicit, aValue)  {    var val = aExplicit ? aValue : !this.mDOMView.showSubDocuments;    this.mDOMView.showSubDocuments = val;    this.mPanel.panelset.setCommandAttribute("cmd:toggleSubDocs", "checked", val ? "true" : "false");  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/1dc8b67ef1c6d089ea6e41113322d280cba4bbbc/dom.js/buggy/extensions/inspector/resources/content/viewers/dom/dom.js