Untitled

<head>

<script type="text/javascript">
function readTextFile(filePath)
{
    var rawFile = new XMLHttpRequest();
    rawFile.open("GET", filePath, false);
    rawFile.onreadystatechange = function ()
    {
        if(rawFile.readyState === 4)
        {
            if(rawFile.status === 200 || rawFile.status == 0)
            {
                var allText = rawFile.responseText;
                document.write(allText);
            }
        }
    }
    rawFile.send(null);
}
</script>

</head>
<body>

<script type="text/javascript">
    readTextFile("file:///D:/Web/dane.txt");
</script>


</body>