var inflator = new Zlib.InflateStream();

function handleFileSelect(evt) {
    var files = evt.target.files; // FileList object
    // files is a FileList of File objects. List some properties.

    var blob = null;

    for (var i = 0, f; f = files[i]; i++) {
        console.log(escape(f.name), f.type, f.size);
        blob = f.slice(0, 3980);
        console.log(blob);
    }
    var reader = new FileReader();

    // If we use onloadend, we need to check the readyState.
    reader.onloadend = function(evt) {
        if (evt.target.readyState == FileReader.DONE) { // DONE == 2
            console.log("RESULT:", new Uint8Array(evt.target.result));
            
            var inflated = inflator.decompress(new Uint8Array(evt.target.result));
            console.log(inflated);
            var resultBlob = new Blob([inflated]);
            console.log("rBlob", resultBlob);
            var f = new FileReader();

            f.readAsText(resultBlob);
            f.onload = function(e) {
                console.log(e.target.result);
            };
        }
    };

    reader.readAsArrayBuffer(blob);
    //reader.readAsBinaryString(blob);
}

document.getElementById("files").addEventListener('change', handleFileSelect, false);