if (gBrowser.tabContainer.childNodes.length > 1) {  
if (gBrowser.tabContainer.childNodes.length > 1 || window.toolbar.visible && !gPrefService.getBoolPref("browser.tabs.autoHide")) {  var isLastTab = gBrowser.tabContainer.childNodes.length == 1; 
function BrowserCloseTabOrWindow(){#ifdef XP_MACOSX  // If we're not a browser window, just close the window  if (window.location.href != getBrowserURL()) {    closeWindow(true);    return;  }#endif  if (gBrowser.tabContainer.childNodes.length > 1) {    // Just close up a tab.    gBrowser.removeCurrentTab();    return;  }#ifndef XP_MACOSX  if (window.toolbar.visible &&      !gPrefService.getBoolPref("browser.tabs.autoHide")) {    // Replace the remaining tab with a blank one and focus the address bar    gBrowser.removeCurrentTab();    if (gURLBar)      setTimeout(function() { gURLBar.focus(); }, 0);    return;  }#endif  closeWindow(true);}
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/cf897b4f98ede438728791d6908dcd93daca7c6a/browser.js/clean/browser/base/content/browser.js