nsIWebShell *rootWebShell; GetRootWebShell(rootWebShell);
nsWebShell::LoadURL(const PRUnichar *aURLSpec,                    nsIPostData* aPostData,                    PRBool aModifyHistory,                    nsURLReloadType aType,                    const PRUint32 aLocalIP){  // if this is the top level web shell, initialize some things, in case the   // web shell is being recycled  nsIWebShell *rootWebShell;  GetRootWebShell(rootWebShell);  //if (this == rootWebShell) {  if (!mIsFrame) {    InitFrameData();  }  return LoadURL(aURLSpec,"view",aPostData,aModifyHistory,aType, aLocalIP);}