function detect_zlib(s,e){var o="ZLIB compression"
return s.compare("7801",e)?(s.isVerbose()&&(o+=" fastest"),sOptions=sOptions.append(o),!0):s.compare("785E",e)?(s.isVerbose()&&(o+=" fast"),sOptions=sOptions.append(o),!0):s.compare("789C",e)?(s.isVerbose()&&(o+=" normal"),sOptions=sOptions.append(o),!0):s.compare("78DA",e)?(s.isVerbose()&&(o+=" best"),sOptions=sOptions.append(o),!0):void 0}