if(browserChrome) browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, aURLSpec);
mOverURL = aURLSpec; mOverTarget = aTargetSpec;
nsWebShell::OnOverLink(nsIContent* aContent,                       const PRUnichar* aURLSpec,                       const PRUnichar* aTargetSpec){    nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner));   if(browserChrome)      browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, aURLSpec);   return NS_OK;}