rem: var file = treeView.getSelectedFile(); if (file) { 
add: var fileList = treeView.selectedFiles; if (fileList.length > 0) { var file = fileList.queryElementAt(0, nsIFile); 
context: function onKeypress(e) {  if (e.keyCode == 8) /* backspace */    goUp();  else if (e.keyCode == 13) { /* enter */    var file = treeView.getSelectedFile();    if (file) {      if (file.isDirectory()) {        gotoDirectory(file);        e.preventDefault();      }    }  }}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/5b3486f79bef23e3c114608a1daf436f0081a438/filepicker.js/clean/toolkit/components/filepicker/content/filepicker.js