rem: node.setAttribute("id", "main-css"); 
add: node.setAttribute("id", id); 
context: function changeCSS(url, id){    if (!id)        id = "main-css";        node = document.getElementById(id);    if (!node)    {        node = document.createElement("link");        node.setAttribute("id", "main-css");        node.setAttribute("rel", "stylesheet");        node.setAttribute("type", "text/css");        var head = document.getElementsByTagName("head")[0];        head.appendChild(node);    }    else    {        if (node.getAttribute("href") == url)            return;    }    node.setAttribute("href", url);    window.scrollTo(0, window.document.height);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/7541bae4539f9a0ae2e561e155af17e2f02a1732/output-window.js/buggy/extensions/irc/xul/content/output-window.js