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: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/ec1f57a2df47ea77b6ce245c6e2bd99b25d52195/static.js/clean/xul/content/static.js