Validate file size using java script
<p>I am trying to validate file size, which I am trying to upload by a File Upload Control.
To validate the size of the file, I am using java script code. But it is throwing run time error. Please somebody help me.</p>

<pre><code>&lt;script language="javascript" type="text/javascript"&gt;
    function getSize() {
        var myFSO = new ActiveXObject("Scripting.FileSystemObject");
        var filepath = document.upload.file.value;
        var thefile = myFSO.getFile(filepath);
        var size = thefile.size / (1024 * 1024);
        alert(size + "MB");
    }
&lt;/script&gt;
</code></pre>

<p>Error message : Microsoft JScript runtime error: Automation server can't create object</p>
