this.getChildByClass = function(node){    for (var i = 1; i < arguments.length; ++i)    {        var className = arguments[i];        var child = node.firstChild;        node = null;        for (; child; child = child.nextSibling)        {            if (this.hasClass(child, className))            {                node = child;                break;            }        }    }        return node;};
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/8237a6359bebacf3e34f1134ef713c687c8e3edb/lib.js/clean/extension/content/firebug/lib.js