return "&nbsp;"; 
return "_"; 
    formatTime: function(elapsed)    {        if (elapsed == -1)            return "&nbsp;";        else if (elapsed < 1000)            return elapsed + "ms";        else if (elapsed < 60000)            return (Math.ceil(elapsed/10) / 100) + "s";        else            return (Math.ceil((elapsed/60000)*100)/100) + "m";    },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/210be60e9eab7afd1c5135f81b279fd8db8bde30/net.js/clean/extension/content/firebug/net.js