add:  return null; 
context: function pv_cellprops (index, colID, properties){    if (colID != "project-col-0")        return null;        var row = this.childData.locateChildByVisualRow(index);    if (row)    {        if (row.getProperties)            return row.getProperties (properties);        if (row.property)            return properties.AppendElement (row.property);    }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/4e2066fc627162c0a72c520381ecb84e5f75cb73/venkman-trees.js/buggy/extensions/venkman/resources/content/venkman-trees.js