rem: if (!e) { dd ("** Bogus id ``" + id + "'' passed to isVisible() **"); 
add: if (!ASSERT(e,"Bogus id ``" + id + "'' passed to isVisible() **")) 
context: function isVisible (id){    var e = document.getElementById(id);    if (!e)    {        dd ("** Bogus id ``" + id + "'' passed to isVisible() **");        return false;    }        return (e.getAttribute ("collapsed") != "true");}
meta: 3298	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3298/377dd328ba12f71ca976ba1a877bf8881dae0beb/static.js/buggy/xul/content/static.js