rem: var first = this.outliner.getFirstVisibleRow(); var last = this.outliner.getLastVisibleRow(); 
add: var first = this.tree.getFirstVisibleRow(); var last = this.tree.getLastVisibleRow(); 
context: function tov_ctrln (line){    var first = this.outliner.getFirstVisibleRow();    var last = this.outliner.getLastVisibleRow();    this.scrollToRow(line - total / 2);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/tree-utils.js/clean/extensions/venkman/resources/content/tree-utils.js