switch (ch) { case "\n": return "\\n"; case "\r": return ""; case "\t": return "\\t"; } }); 
switch (ch) { case "\n": return "\\n"; case "\r": return ""; case "\t": return "\\t"; } }); 
        str = str.replace(/\n|\r|\t/g, function(ch) {          switch (ch) {            case "\n": return "\\n";            case "\r": return "";            case "\t": return "\\t";          }        });
266	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/266/17a036460ab987cdb0329f531bf7a66872ff2fe2/util.js/buggy/java/org/directwebremoting/util.js