rem: var sourceText = sourceView.childData; if (sourceText && sourceText.url in sourceView.savedState) 
add: if ("childData" in sourceView) 
context: function sv_show (){    var sourceView = this;    function cb ()    {        var sourceText = sourceView.childData;        if (sourceText && sourceText.url in sourceView.savedState)        {            //dd ("clearing lastRowCount");            delete sourceView.savedState[sourceText.url].lastRowCount;        }        sourceView.syncTreeView();        sourceView.urlLabel = getChildById(sourceView.currentContent,                                           "source-url");        sourceView.syncHeader();    };        syncTreeView (getChildById(this.currentContent, "source-tree"), this, cb);    initContextMenu(this.currentContent.ownerDocument, "context:source");}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/dec4f242212cf0b590a999acd92083ffce7cbd59/venkman-views.js/clean/extensions/venkman/resources/content/venkman-views.js