document.write("请选择");document.write("Google Chrome 52版以上(不含52)");document.write("Google Chrome 52版以下(含52)");document.write("FireFox");document.write("IE 11");document.write("IE 10");document.write("IE 9.0");document.write("IE 8.0");document.write("IE 7.0");document.write("IE 6.0");document.write("其它");