context: function SetUpToolbarButtons(uri){    // dump("SetUpToolbarButtons("+uri+")\n");    // eventually, we might want to set up the toolbar differently for imap,    // pop, and news.  for now, just tweak it based on if it is news or not.    var forNews = isNewsURI(uri);    if(!gMarkButton) gMarkButton = document.getElementById("button-mark");    if(!gDeleteButton) gDeleteButton = document.getElementById("button-delete");        var buttonToHide = null;    var buttonToShow = null;    if (forNews) {        buttonToHide = gDeleteButton;        buttonToShow = gMarkButton;    }    else {        buttonToHide = gMarkButton;        buttonToShow = gDeleteButton;    }    if (buttonToHide) {        buttonToHide.setAttribute('hidden',true);    }    if (buttonToShow) {        buttonToShow.removeAttribute('hidden');    }}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/0b2dd2b2d2fd037df917e07645fa019a963332a5/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js